From 4e51b7d5b6a9b89deb5ef135deec0ee5f0087e7c Mon Sep 17 00:00:00 2001
From: coco875 <59367621+coco875@users.noreply.github.com>
Date: Sat, 13 Dec 2025 20:08:59 +0100
Subject: [PATCH] Document sound effects (pr 735 from the decomp) (#589)

Co-authored-by: Jed Grabman <JedGrabman@users.noreply.github.com>
Co-authored-by: MegaMech <MegaMech@users.noreply.github.com>
---
 include/common_structs.h              |   2 +-
 include/defines.h                     |  44 +++++--
 src/actors/banana/update.inc.c        |   2 +-
 src/actors/fake_item_box/update.inc.c |   2 +-
 src/camera.c                          |   8 +-
 src/code_80005FD0.c                   |  50 ++++----
 src/code_80086E70.c                   |   8 +-
 src/effects.c                         |  74 ++++++------
 src/effects.h                         |  18 +--
 src/engine/objects/BombKart.cpp       |   6 +-
 src/engine/objects/Mole.cpp           |   2 +-
 src/engine/objects/Thwomp.cpp         |   6 +-
 src/engine/vehicles/Boat.cpp          |   2 +-
 src/engine/vehicles/Bus.cpp           |   2 +-
 src/engine/vehicles/Car.cpp           |   2 +-
 src/engine/vehicles/TankerTruck.cpp   |   2 +-
 src/engine/vehicles/Train.cpp         |   6 +-
 src/engine/vehicles/Truck.cpp         |   2 +-
 src/player_controller.c               | 159 ++++++++++++++------------
 src/player_controller.h               |   2 +-
 src/racing/actors.c                   |  30 ++---
 src/racing/actors_extended.c          |  22 ++--
 src/racing/race_logic.c               |  14 +--
 src/render_player.c                   |   4 +-
 src/spawn_players.c                   |   2 +-
 25 files changed, 254 insertions(+), 217 deletions(-)

diff --git a/include/common_structs.h b/include/common_structs.h
index 25a12dc53..39c501b31 100644
--- a/include/common_structs.h
+++ b/include/common_structs.h
@@ -268,7 +268,7 @@ typedef struct {
     /* 0x0006 */ u16 unk_006;
     /* 0x0008 */ s16 lapCount;
     /* 0x000A */ char unk_00A[0x2];
-    /* 0x000C */ s32 soundEffects;    // Bitflag.
+    /* 0x000C */ s32 triggers;    // Bitflag.
     /* 0x0010 */ s16 currentItemCopy; // Has no effect on what item the players has, It is just a synced copy
     /* 0x0012 */ s16 unk_012;
     /* 0x0014 */ Vec3f pos;
diff --git a/include/defines.h b/include/defines.h
index e5cdf6963..8b53f5206 100644
--- a/include/defines.h
+++ b/include/defines.h
@@ -356,19 +356,39 @@ enum PLACE { FIRST_PLACE, SECOND_PLACE, THIRD_PLACE, FOURTH_PLACE };
 #define MAX_TIME 0x927C0
 
 /**
- * @brief sound effect of player's
- * for soundEffect
+ * @brief triggers indicating that an effect should be applied to a kart
  */
-#define HIT_SOUND_EFFECT 0x100                   // hitting an object
-#define BOOST_SOUND_EFFECT 0x200                 // being boosted by trigger a mushroom
-#define BOO_SOUND_EFFECT 0x800                   // being a boo
-#define STAR_SOUND_EFFECT 0x2000                 // being a star
-#define HIT_ROTATING_SOUND_EFFECT 0x4000         // hitting a rotating object
-#define BOOST_RAMP_WOOD_SOUND_EFFECT 0x8000      // being boosted by a ramp
-#define HOLD_BANANA_SOUND_EFFECT 0x40000         // holding a banana
-#define REVERSE_SOUND_EFFECT 0x400000            // being in the wrong direction
-#define BOOST_RAMP_ASPHALT_SOUND_EFFECT 0x800000 // being boosted by a boost pad
-#define HIT_BY_ITEM_SOUND_EFFECT 0x1000000       // being hit by an item
+#define HIT_BANANA_TRIGGER              0x1 // hits a banana
+#define HIGH_TUMBLE_TRIGGER             0x2 // hit by a red shell, blue shell, or hit a mole
+#define LOW_TUMBLE_TRIGGER              0x4 // hit by a green shell
+#define DRIVING_SPINOUT_TRIGGER        0x80 // spinning out from erratic driving
+#define THWOMP_SQUISH_TRIGGER         0x100 // stomped by thwomp
+#define SHROOM_TRIGGER                0x200 // being boosted by trigger a mushroom
+#define BOO_TRIGGER                   0x800 // being a boo
+#define UNUSED_TRIGGER_0x1000        0x1000 // Unused
+#define STAR_TRIGGER                 0x2000 // Starting a star
+#define LIGHTNING_STRIKE_TRIGGER     0x4000 // Struck by lightning
+#define BOOST_RAMP_WOOD_TRIGGER      0x8000 // being boosted by a ramp
+#define UNUSED_TRIGGER_0x20000      0x20000 // Unused
+#define DRAG_ITEM_EFFECT            0x40000 // holding a non-shell item behind you
+#define HIT_PADDLE_BOAT_TRIGGER     0x80000 // hit paddle boat
+#define UNUSED_TRIGGER_0x10000     0x100000 // Unused
+#define SPINOUT_TRIGGER            0x200000 // hit crab or spiny spinout or losing versus race
+#define VERTICAL_TUMBLE_TRIGGER    0x400000 // hitting a fake item / bomb / snowman / car / train
+#define BOOST_RAMP_ASPHALT_TRIGGER 0x800000 // being boosted by a boost pad
+#define HIT_BY_STAR_TRIGGER       0x1000000 // being hit by a star
+#define START_BOOST_TRIGGER       0x2000000 // Start boost
+#define LOSE_BATTLE_EFFECT        0x4000000 // When losing battle mode
+#define BECOME_BOMB_EFFECT        0x8000000 // When becoming a bomb in battle mode
+#define START_SPINOUT_TRIGGER    0x10000000 // Spinning out by holding gas at start of race
+
+#define ALL_TRIGGERS (0xFFFFFFFF)
+#define RACING_SPINOUT_TRIGGERS (SPINOUT_TRIGGER | DRIVING_SPINOUT_TRIGGER | HIT_BANANA_TRIGGER) // 0x200081
+#define RAMP_BOOST_TRIGGERS (BOOST_RAMP_ASPHALT_TRIGGER | BOOST_RAMP_WOOD_TRIGGER) // 0x00808000
+#define ANY_BOOST_TRIGGERS (RAMP_BOOST_TRIGGERS | SHROOM_TRIGGER) // 0x00808200
+#define STATE_TRANSITION_TRIGGERS (STAR_TRIGGER | BOO_TRIGGER | UNUSED_TRIGGER_0x1000 | UNUSED_TRIGGER_0x20000)// 0x00023800
+#define HIT_TRIGGERS (HIT_BY_STAR_TRIGGER | VERTICAL_TUMBLE_TRIGGER | \
+    LIGHTNING_STRIKE_TRIGGER | LOW_TUMBLE_TRIGGER | HIGH_TUMBLE_TRIGGER | THWOMP_SQUISH_TRIGGER) // 0x01404106
 
 /**
  * @brief effect of player's
diff --git a/src/actors/banana/update.inc.c b/src/actors/banana/update.inc.c
index 331585703..eabe4ba5b 100644
--- a/src/actors/banana/update.inc.c
+++ b/src/actors/banana/update.inc.c
@@ -60,7 +60,7 @@ void update_actor_banana(struct BananaActor* banana) {
                     controller->buttonDepressed &= ~Z_TRIG;
                     banana->state = 1;
                     banana->unk_04 = 0x00B4;
-                    player->soundEffects &= ~HOLD_BANANA_SOUND_EFFECT;
+                    player->triggers &= ~DRAG_ITEM_EFFECT;
                     func_800C9060(player - gPlayerOne, SOUND_ARG_LOAD(0x19, 0x00, 0x80, 0x12));
                     pad3 = controller->rawStickY;
                     if ((pad3 > 30.0f) && (controller->rawStickX < 10) && (controller->rawStickX >= -9)) {
diff --git a/src/actors/fake_item_box/update.inc.c b/src/actors/fake_item_box/update.inc.c
index efb834a80..48fbedf50 100644
--- a/src/actors/fake_item_box/update.inc.c
+++ b/src/actors/fake_item_box/update.inc.c
@@ -45,7 +45,7 @@ void update_actor_fake_item_box(struct FakeItemBox* fake_item_box) {
                 if ((temp_v1_3->buttonDepressed & Z_TRIG) != 0) {
                     temp_v1_3->buttonDepressed &= 0xDFFF;
                     func_802A1064(fake_item_box);
-                    temp_v0_4->soundEffects &= 0xFFFBFFFF;
+                    temp_v0_4->triggers &= 0xFFFBFFFF;
                     func_800C9060((u8) (temp_v0_4 - gPlayerOne), SOUND_ARG_LOAD(0x19, 0x00, 0x80, 0x12));
                 }
             }
diff --git a/src/camera.c b/src/camera.c
index 6d3ed90b9..577af222e 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -1156,7 +1156,7 @@ void func_8001F394(Player* player, f32* arg1) {
     }
 
     if (D_80164A08[playerIndex] == 0) {
-        if (player->soundEffects & HOLD_BANANA_SOUND_EFFECT) {
+        if (player->triggers & DRAG_ITEM_EFFECT) {
             D_80164A08[playerIndex] = 1;
         }
         if ((player->effects & BOOST_EFFECT) == BOOST_EFFECT) {
@@ -1165,7 +1165,7 @@ void func_8001F394(Player* player, f32* arg1) {
         if ((player->effects & BOOST_RAMP_ASPHALT_EFFECT) == BOOST_RAMP_ASPHALT_EFFECT) {
             D_80164A08[playerIndex] = 3;
         }
-        if ((player->soundEffects & 0x100) == 0x100) {
+        if ((player->triggers & THWOMP_SQUISH_TRIGGER) == THWOMP_SQUISH_TRIGGER) {
             D_80164A08[playerIndex] = 4;
         }
         if (((player->effects & 0x80) == 0x80) || ((player->effects & 0x40) == 0x40)) {
@@ -1175,7 +1175,7 @@ void func_8001F394(Player* player, f32* arg1) {
     }
     switch (D_80164A08[playerIndex]) {
         case 1:
-            if (player->soundEffects & HOLD_BANANA_SOUND_EFFECT) {
+            if (player->triggers & DRAG_ITEM_EFFECT) {
                 move_f32_towards(&D_80164498[playerIndex], 20.0f, 0.2f);
             } else {
                 if (D_80164498[playerIndex] > 1.0f) {
@@ -1214,7 +1214,7 @@ void func_8001F394(Player* player, f32* arg1) {
             }
             break;
         case 4:
-            if ((player->soundEffects & 0x100) == 0x100) {
+            if ((player->triggers & THWOMP_SQUISH_TRIGGER) == THWOMP_SQUISH_TRIGGER) {
                 move_f32_towards(&D_80164498[playerIndex], 25.0f, 1.0f);
             } else {
                 if (D_80164498[playerIndex] > 1.0f) {
diff --git a/src/code_80005FD0.c b/src/code_80005FD0.c
index 444e18858..ee25db35c 100644
--- a/src/code_80005FD0.c
+++ b/src/code_80005FD0.c
@@ -1100,8 +1100,8 @@ void regulate_cpu_speed(s32 playerId, f32 targetSpeed, Player* player) {
 
     var_f2 = player->speed;
     if (!(player->effects & 0x80) && !(player->effects & 0x40) && !(player->effects & 0x20000) &&
-        !(player->soundEffects & 0x400000) && !(player->soundEffects & 0x01000000) && !(player->soundEffects & 2) &&
-        !(player->soundEffects & 4)) {
+        !(player->triggers & VERTICAL_TUMBLE_TRIGGER) && !(player->triggers & HIT_BY_STAR_TRIGGER) && !(player->triggers & HIGH_TUMBLE_TRIGGER) &&
+        !(player->triggers & LOW_TUMBLE_TRIGGER)) {
         if (IsPodiumCeremony()) {
             func_80007FA4(playerId, player, var_f2);
         } else if ((bStopAICrossing[playerId] == 1) && !(player->effects & (STAR_EFFECT | BOO_EFFECT))) {
@@ -1568,8 +1568,8 @@ void play_cpu_sound_effect(s32 arg0, Player* player) {
         }
     }
     if (D_801633B0[arg0] >= 0xB) {
-        if ((player->soundEffects & REVERSE_EFFECT) || (player->soundEffects & 0x01000000) ||
-            (player->soundEffects & 2) || (player->soundEffects & 4) || (player->effects & HIT_EFFECT)) {
+        if ((player->triggers & REVERSE_EFFECT) || (player->triggers & HIT_BY_STAR_TRIGGER) ||
+            (player->triggers & HIGH_TUMBLE_TRIGGER) || (player->triggers & LOW_TUMBLE_TRIGGER) || (player->effects & HIT_EFFECT)) {
             func_800C92CC(arg0, SOUND_ARG_LOAD(0x29, 0x00, 0x80, 0x0B));
             D_801633B0[arg0] = 0;
         }
@@ -3114,7 +3114,7 @@ void func_8000DF8C(s32 bombKartId) {
                     if ((((temp_f0 * temp_f0) + (temp_f2 * temp_f2)) + (temp_f12 * temp_f12)) < 25.0f) {
                         var_s1 = 0;
                         sp7E = 4;
-                        var_v0->soundEffects |= 0x400000;
+                        var_v0->triggers |= VERTICAL_TUMBLE_TRIGGER;
                         var_v0->type &= ~0x2000;
                     }
                 }
@@ -3130,9 +3130,9 @@ void func_8000DF8C(s32 bombKartId) {
                             sp7E = 4;
                             var_s1 = 0;
                             if (IsFrappeSnowland()) {
-                                var_v0->soundEffects |= 0x01000000;
+                                var_v0->triggers |= HIT_BY_STAR_TRIGGER;
                             } else {
-                                var_v0->soundEffects |= 0x400000;
+                                var_v0->triggers |= VERTICAL_TUMBLE_TRIGGER;
                             }
                         }
                     }
@@ -3689,7 +3689,7 @@ void init_players(void) {
 
             for (i = 0; i < NUM_PLAYERS; i++) {
                 if (D_80163330[i] == 1) {
-                    gPlayers[i].soundEffects |= 0x02000000;
+                    gPlayers[i].triggers |= START_BOOST_TRIGGER;
                 }
             }
         }
@@ -4652,14 +4652,14 @@ void handle_trains_interactions(s32 playerId, Player* player) {
                     if ((z_dist > -100.0) && (z_dist < 100.0)) {
                         if (is_collide_with_vehicle(trainCar->position[0], trainCar->position[2], trainCar->velocity[0],
                                                     trainCar->velocity[2], 60.0f, 20.0f, playerPosX, playerPosZ) == 1) {
-                            player->soundEffects |= REVERSE_SOUND_EFFECT;
+                            player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                         }
                         trainCar = &gTrainList[trainIndex].tender;
                         if (trainCar->isActive == 1) {
                             if (is_collide_with_vehicle(trainCar->position[0], trainCar->position[2],
                                                         trainCar->velocity[0], trainCar->velocity[2], 30.0f, 20.0f,
                                                         playerPosX, playerPosZ) == 1) {
-                                player->soundEffects |= REVERSE_SOUND_EFFECT;
+                                player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                             }
                         }
                     }
@@ -4676,7 +4676,7 @@ void handle_trains_interactions(s32 playerId, Player* player) {
                                 if (is_collide_with_vehicle(trainCar->position[0], trainCar->position[2],
                                                             trainCar->velocity[0], trainCar->velocity[2], 30.0f, 20.0f,
                                                             playerPosX, playerPosZ) == 1) {
-                                    player->soundEffects |= REVERSE_SOUND_EFFECT;
+                                    player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                                 }
                             }
                         }
@@ -4902,7 +4902,7 @@ void handle_paddle_boats_interactions(Player* player) {
                                                      tempPaddleWheelBoat->velocity[0], tempPaddleWheelBoat->velocity[2],
                                                      200.0f, 60.0f, playerX, playerZ) == 1) &&
                             (y_diff < 60.0)) {
-                            player->soundEffects |= 0x80000;
+                            player->triggers |= HIT_PADDLE_BOAT_TRIGGER;
                         }
                     }
                 }
@@ -5086,7 +5086,7 @@ void handle_vehicle_interactions(s32 playerId, Player* player, VehicleStuff* veh
                     if (((temp_f14) > -100.0) && ((temp_f14) < 100.0)) {
                         if (is_collide_with_vehicle(vehicle->position[0], vehicle->position[2], vehicle->velocity[0],
                                                     vehicle->velocity[2], arg3, arg4, spC4, spBC) == (s32) 1) {
-                            player->soundEffects |= REVERSE_SOUND_EFFECT;
+                            player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                         }
                     }
                 }
@@ -7223,7 +7223,7 @@ void cpu_use_item_strategy(s32 playerId) {
             } else if (cpuStrategy->branch == CPU_STRATEGY_ITEM_BANANA) {
                 cpuStrategy->actorIndex = use_banana_item(player);
                 if ((cpuStrategy->actorIndex >= 0) && (cpuStrategy->actorIndex < 100)) {
-                    player->soundEffects |= HOLD_BANANA_SOUND_EFFECT;
+                    player->triggers |= DRAG_ITEM_EFFECT;
                     cpuStrategy->branch = CPU_STRATEGY_HOLD_BANANA;
                     cpuStrategy->timer = 0;
                     cpuStrategy->numItemUse += 1;
@@ -7248,7 +7248,7 @@ void cpu_use_item_strategy(s32 playerId) {
 
                 cpuStrategy->branch = CPU_STRATEGY_WAIT_NEXT_ITEM;
                 cpuStrategy->timer = 0;
-                player->soundEffects &= ~HOLD_BANANA_SOUND_EFFECT;
+                player->triggers &= ~DRAG_ITEM_EFFECT;
             } else if (cpuStrategy->timeBeforeThrow < cpuStrategy->timer) {
                 cpuStrategy->branch = CPU_STRATEGY_DROP_BANANA;
             }
@@ -7277,7 +7277,7 @@ void cpu_use_item_strategy(s32 playerId) {
                         (BANANA_ACTOR(actor)->boundingBoxSize + 1.0f);
                 }
             }
-            player->soundEffects &= ~HOLD_BANANA_SOUND_EFFECT;
+            player->triggers &= ~DRAG_ITEM_EFFECT;
             cpuStrategy->timer = 0;
             cpuStrategy->branch = CPU_STRATEGY_WAIT_NEXT_ITEM;
             break;
@@ -7287,7 +7287,7 @@ void cpu_use_item_strategy(s32 playerId) {
             if ((cpuStrategy->actorIndex >= 0) && (cpuStrategy->actorIndex < 100)) {
                 actor = GET_ACTOR(cpuStrategy->actorIndex);
                 BANANA_ACTOR(actor)->state = BANANA_ON_GROUND;
-                player->soundEffects |= HOLD_BANANA_SOUND_EFFECT;
+                player->triggers |= DRAG_ITEM_EFFECT;
                 cpuStrategy->branch = CPU_STRATEGY_HOLD_THROW_BANANA;
                 cpuStrategy->timer = 0;
                 cpuStrategy->numItemUse += 1;
@@ -7320,7 +7320,7 @@ void cpu_use_item_strategy(s32 playerId) {
 
                 cpuStrategy->timer = 0;
                 cpuStrategy->branch = CPU_STRATEGY_WAIT_NEXT_ITEM;
-                player->soundEffects &= ~HOLD_BANANA_SOUND_EFFECT;
+                player->triggers &= ~DRAG_ITEM_EFFECT;
             } else {
                 BANANA_ACTOR(actor)->velocity[1] -= 0.4;
                 BANANA_ACTOR(actor)->pos[0] += BANANA_ACTOR(actor)->velocity[0];
@@ -7354,7 +7354,7 @@ void cpu_use_item_strategy(s32 playerId) {
                                            BANANA_ACTOR(actor)->pos[2]) +
                     (BANANA_ACTOR(actor)->boundingBoxSize + 1.0f);
             }
-            player->soundEffects &= ~HOLD_BANANA_SOUND_EFFECT;
+            player->triggers &= ~DRAG_ITEM_EFFECT;
             cpuStrategy->branch = CPU_STRATEGY_WAIT_NEXT_ITEM;
             cpuStrategy->timer = 0;
             break;
@@ -7652,7 +7652,7 @@ void cpu_use_item_strategy(s32 playerId) {
             break;
 
         case CPU_STRATEGY_ITEM_STAR:
-            player->soundEffects |= STAR_SOUND_EFFECT;
+            player->triggers |= STAR_TRIGGER;
             cpuStrategy->branch = CPU_STRATEGY_END_ITEM_STAR;
             cpuStrategy->timer = 0;
             cpuStrategy->numItemUse += 1;
@@ -7666,7 +7666,7 @@ void cpu_use_item_strategy(s32 playerId) {
             break;
 
         case CPU_STRATEGY_ITEM_BOO:
-            player->soundEffects |= BOO_SOUND_EFFECT;
+            player->triggers |= BOO_TRIGGER;
             cpuStrategy->branch = CPU_STRATEGY_WAIT_END_BOO;
             cpuStrategy->timer = 0;
             cpuStrategy->numItemUse += 1;
@@ -7680,7 +7680,7 @@ void cpu_use_item_strategy(s32 playerId) {
             break;
 
         case CPU_STRATEGY_ITEM_MUSHROOM:
-            player->soundEffects |= BOOST_SOUND_EFFECT;
+            player->triggers |= SHROOM_TRIGGER;
             cpuStrategy->branch = CPU_STRATEGY_WAIT_NEXT_ITEM;
             cpuStrategy->timer = 0;
             cpuStrategy->numItemUse += 1;
@@ -7688,7 +7688,7 @@ void cpu_use_item_strategy(s32 playerId) {
 
         case CPU_STRATEGY_ITEM_DOUBLE_MUSHROOM:
             if (cpuStrategy->timer >= 0x3D) {
-                player->soundEffects |= BOOST_SOUND_EFFECT;
+                player->triggers |= SHROOM_TRIGGER;
                 cpuStrategy->branch = CPU_STRATEGY_ITEM_MUSHROOM;
                 cpuStrategy->timer = 0;
             }
@@ -7696,7 +7696,7 @@ void cpu_use_item_strategy(s32 playerId) {
 
         case CPU_STRATEGY_ITEM_TRIPLE_MUSHROOM:
             if (cpuStrategy->timer >= 0x3D) {
-                player->soundEffects |= BOOST_SOUND_EFFECT;
+                player->triggers |= SHROOM_TRIGGER;
                 cpuStrategy->branch = CPU_STRATEGY_ITEM_DOUBLE_MUSHROOM;
                 cpuStrategy->timer = 0;
             }
@@ -7710,7 +7710,7 @@ void cpu_use_item_strategy(s32 playerId) {
 
         case CPU_STRATEGY_USE_SUPER_MUSHROOM:
             if ((((s16) cpuStrategy->timer) % 60) == 0) {
-                player->soundEffects |= BOOST_SOUND_EFFECT;
+                player->triggers |= SHROOM_TRIGGER;
                 if (cpuStrategy->timeBeforeThrow < cpuStrategy->timer) {
                     cpuStrategy->timer = 0;
                     cpuStrategy->branch = CPU_STRATEGY_WAIT_NEXT_ITEM;
diff --git a/src/code_80086E70.c b/src/code_80086E70.c
index b84c55696..4c94b3fcf 100644
--- a/src/code_80086E70.c
+++ b/src/code_80086E70.c
@@ -1167,7 +1167,7 @@ s32 func_80089B50(s32 objectIndex) {
                 (player->type & PLAYER_EXISTS) && !(player->type & PLAYER_INVISIBLE_OR_BOMB) &&
                 (has_collided_horizontally_with_player(objectIndex, player) != 0)) {
                 if (!(player->effects & STAR_EFFECT)) {
-                    player->soundEffects |= REVERSE_SOUND_EFFECT;
+                    player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                     if (is_obj_flag_status_active(objectIndex, 0x04000000) != 0) {
                         func_80072180();
                     }
@@ -1194,7 +1194,7 @@ s32 func_80089CBC(s32 objectIndex, f32 arg1) {
                 if ((player->type & PLAYER_EXISTS) && !(player->type & PLAYER_INVISIBLE_OR_BOMB) &&
                     (has_collided_with_player_and_within_height(objectIndex, player, arg1) != 0)) {
                     if (!(player->effects & STAR_EFFECT)) {
-                        player->soundEffects |= REVERSE_SOUND_EFFECT;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                         if (is_obj_flag_status_active(objectIndex, 0x04000000) != 0) {
                             func_80072180();
                         }
@@ -1221,7 +1221,7 @@ s32 func_80089E18(s32 objectIndex) {
                 if (player->effects & STAR_EFFECT) {
                     var_s6 = 1;
                 } else {
-                    player->soundEffects |= 1;
+                    player->triggers |= HIT_BANANA_TRIGGER;
                 }
             }
         }
@@ -1245,7 +1245,7 @@ s32 func_80089F24(s32 objectIndex) {
                     if (is_obj_flag_status_active(objectIndex, 0x04000000) != 0) {
                         func_80072180();
                     }
-                    player->soundEffects |= 0x200000;
+                    player->triggers |= SPINOUT_TRIGGER;
                 }
             }
         }
diff --git a/src/effects.c b/src/effects.c
index 21d175021..03159f8d5 100644
--- a/src/effects.c
+++ b/src/effects.c
@@ -134,8 +134,8 @@ UNUSED void func_unnamed33(void) {
 }
 
 void func_8008C310(Player* player) {
-    if ((player->soundEffects & 2) || (player->soundEffects & 4) || ((player->soundEffects << 9) < 0) ||
-        (player->soundEffects & HIT_BY_ITEM_SOUND_EFFECT)) {
+    if ((player->triggers & HIGH_TUMBLE_TRIGGER) || (player->triggers & LOW_TUMBLE_TRIGGER) || ((player->triggers << 9) < 0) ||
+        (player->triggers & HIT_BY_STAR_TRIGGER)) {
         player->unk_0B6 = ((u16) player->unk_0B6 | 0x1000);
     }
 }
@@ -216,7 +216,7 @@ void func_8008C528(Player* player, s8 arg1) {
     } else {
         play_cpu_sound_effect(arg1, player);
     }
-    player->soundEffects = (s32) (player->soundEffects & ~4);
+    player->triggers = (s32) (player->triggers & ~LOW_TUMBLE_TRIGGER);
 }
 
 void func_8008C62C(Player* player, s8 arg1) {
@@ -311,7 +311,7 @@ void func_8008C8C4(Player* player, s8 playerId) {
     }
     if ((gModeSelection == VERSUS) && ((player->type & PLAYER_CPU) == PLAYER_CPU) && (!gDemoMode) &&
         ((player->unk_0CA & 2) == 0) && (gGPCurrentRaceRankByPlayerId[playerId] != 0)) {
-        player->soundEffects = (s32) (player->soundEffects | REVERSE_SOUND_EFFECT);
+        player->triggers = (s32) (player->triggers | VERTICAL_TUMBLE_TRIGGER);
     }
 }
 
@@ -372,7 +372,7 @@ void func_8008C9EC(Player* player, s8 arg1) {
 void func_8008CDC0(Player* player, s8 arg1) {
     clean_effect(player, arg1);
 
-    player->soundEffects &= ~1;
+    player->triggers &= ~HIT_BANANA_TRIGGER;
     player->unk_0B4 = 0;
     player->unk_0B8 = 3.0f;
     player->unk_0AC = 1;
@@ -444,7 +444,7 @@ void func_8008D0E4(Player* player, UNUSED s8 arg1) {
 void func_8008D0FC(Player* player, s8 arg1) {
     clean_effect(player, arg1);
 
-    player->soundEffects &= ~0x80;
+    player->triggers &= ~DRIVING_SPINOUT_TRIGGER;
     player->unk_0B4 = 0;
     player->unk_0B8 = 2.0f;
     player->unk_0AC = 1;
@@ -506,12 +506,12 @@ void func_8008D3B0(Player* player, UNUSED s8 arg1) {
     player->unk_044 &= 0xBFFF;
 }
 
-void apply_boost_sound_effect(Player* player, s8 arg1) {
+void trigger_shroom(Player* player, s8 arg1) {
 
     clean_effect(player, arg1);
 
     player->effects |= BOOST_EFFECT;
-    player->soundEffects &= ~BOOST_SOUND_EFFECT;
+    player->triggers &= ~SHROOM_TRIGGER;
     player->unk_DB4.unk0 = 0;
     player->unk_DB4.unk8 = 8.0f;
 
@@ -559,7 +559,7 @@ void func_8008D570(Player* player, s8 arg1) {
     player->unk_0AE = player->rotation[1];
     player->effects |= 0x80000;
     player->effects &= ~0x10;
-    player->soundEffects &= ~0x1000;
+    player->triggers &= ~UNUSED_TRIGGER_0x1000;
     player->kartHopJerk = D_800E3730[player->characterId];
     player->kartHopAcceleration = 0.0f;
     player->kartHopVelocity = (f32) D_800E3710[player->characterId];
@@ -618,7 +618,7 @@ void func_8008D7B0(Player* player, s8 arg1) {
     player->unk_0AE = player->rotation[1];
     player->effects |= 0x800000;
     player->effects &= ~0x10;
-    player->soundEffects &= ~0x20000;
+    player->triggers &= ~UNUSED_TRIGGER_0x20000;
     player->kartHopJerk = D_800E3770[player->characterId];
     player->kartHopAcceleration = 0.0f;
     player->kartHopVelocity = D_800E3750[player->characterId];
@@ -687,7 +687,7 @@ void func_8008D9C0(Player* player) {
     }
 }
 
-void apply_hit_sound_effect(Player* player, s8 arg1) {
+void trigger_squish(Player* player, s8 arg1) {
     clean_effect(player, arg1);
 
     if ((player->effects & HIT_EFFECT) == 0) {
@@ -704,7 +704,7 @@ void apply_hit_sound_effect(Player* player, s8 arg1) {
         player->unk_D9C = 0.0f;
         player->unk_DA0 = 65.0f;
 
-        if ((player->soundEffects & 0x100) != 0) {
+        if ((player->triggers & THWOMP_SQUISH_TRIGGER) != 0) {
             player->unk_046 |= 0x80;
         }
 
@@ -738,7 +738,7 @@ void apply_hit_effect(Player* player, s8 arg1) {
             }
 
             if ((player->unk_046 & 0x80) != 0) {
-                if ((player->soundEffects & 0x100) == 0) {
+                if ((player->triggers & THWOMP_SQUISH_TRIGGER) == 0) {
                     D_8018D990[arg1] = 1;
                     player->unk_238 = 0;
                     if ((player->type & PLAYER_HUMAN) != 0) {
@@ -827,10 +827,10 @@ void apply_hit_effect(Player* player, s8 arg1) {
     }
 }
 
-void apply_hit_rotating_sound_effect(Player* player, s8 arg1) {
+void trigger_lightning_strike(Player* player, s8 arg1) {
     clean_effect(player, arg1);
 
-    player->soundEffects &= ~HIT_ROTATING_SOUND_EFFECT;
+    player->triggers &= ~LIGHTNING_STRIKE_TRIGGER;
     player->effects |= 0x40020000;
     player->effects &= ~0x10;
     player->kartPropulsionStrength *= 0.6;
@@ -874,7 +874,7 @@ void apply_lightning_effect(Player* player, s8 arg1) {
         D_80165190[1][arg1] = 1;
         D_80165190[2][arg1] = 1;
         D_80165190[3][arg1] = 1;
-        apply_hit_sound_effect(player, arg1);
+        trigger_squish(player, arg1);
     } else if ((player->effects & 0x20000) == 0x20000) {
         player->rotation[1] -= 0x5B0;
         D_8018D920[arg1] -= 0x5B0;
@@ -992,12 +992,12 @@ void func_8008E4A4(Player* player, s8 arg1) {
     }
 }
 
-void apply_reverse_sound_effect(Player* player, s8 arg1) {
+void trigger_vertical_tumble(Player* player, s8 arg1) {
     clean_effect(player, arg1);
     func_8008C310(player);
 
     player->unk_0A8 = 0;
-    player->effects |= 0x01000000;
+    player->effects |= HIT_BY_STAR_TRIGGER;
     player->effects &= ~0x10;
     player->kartHopJerk = 0.0f;
     player->kartHopAcceleration = 0.0f;
@@ -1025,7 +1025,7 @@ void apply_reverse_sound_effect(Player* player, s8 arg1) {
         play_cpu_sound_effect(arg1, player);
     }
 
-    player->soundEffects &= ~(REVERSE_SOUND_EFFECT | 0x80000);
+    player->triggers &= ~(VERTICAL_TUMBLE_TRIGGER | HIT_PADDLE_BOAT_TRIGGER);
     player->unk_0B6 |= 0x40;
     gTimerBoostTripleACombo[arg1] = 0;
     gIsPlayerTripleAButtonCombo[arg1] = false;
@@ -1101,7 +1101,7 @@ void apply_hit_by_item_effect(Player* player, s8 arg1) {
     }
 }
 
-void apply_hit_by_item_sound_effect(Player* player, s8 arg1) {
+void trigger_high_tumble(Player* player, s8 arg1) {
     clean_effect(player, arg1);
     func_8008C310(player);
 
@@ -1126,7 +1126,7 @@ void apply_hit_by_item_sound_effect(Player* player, s8 arg1) {
 
     player->effects |= HIT_BY_ITEM_EFFECT;
     player->unk_0B6 |= 0x40;
-    player->soundEffects &= ~0x01000002;
+    player->triggers &= ~(HIT_BY_STAR_TRIGGER | HIGH_TUMBLE_TRIGGER);
 
     gTimerBoostTripleACombo[arg1] = 0;
     gIsPlayerTripleAButtonCombo[arg1] = false;
@@ -1145,11 +1145,11 @@ void remove_hit_by_item_effect(Player* player, s8 arg1) {
     player->unk_042 = 0;
 }
 
-void apply_boost_ramp_asphalt_sound_effect(Player* player, s8 playerId) {
+void trigger_asphalt_ramp_boost(Player* player, s8 playerId) {
     clean_effect(player, playerId);
 
     player->effects |= BOOST_RAMP_ASPHALT_EFFECT;
-    player->soundEffects &= ~BOOST_RAMP_ASPHALT_SOUND_EFFECT;
+    player->triggers &= ~BOOST_RAMP_ASPHALT_TRIGGER;
     player->unk_DB4.unk0 = 0;
     player->unk_DB4.unk8 = 8.0f;
     if (D_8015F890 != 1) {
@@ -1193,11 +1193,11 @@ void remove_boost_ramp_asphalt_effect(Player* player) {
     player->boostPower = 0.0f;
 }
 
-void apply_boost_ramp_wood_sound_effect(Player* player, s8 playerId) {
+void trigger_wood_ramp_boost(Player* player, s8 playerId) {
     clean_effect(player, playerId);
 
     player->effects |= BOOST_RAMP_WOOD_EFFECT;
-    player->soundEffects &= ~BOOST_RAMP_WOOD_SOUND_EFFECT;
+    player->triggers &= ~BOOST_RAMP_WOOD_TRIGGER;
 
     if (D_8015F890 != 1) {
         if (((player->type & PLAYER_HUMAN) == PLAYER_HUMAN) && ((player->type & PLAYER_INVISIBLE_OR_BOMB) == 0)) {
@@ -1395,11 +1395,11 @@ void apply_star_effect(Player* player, s8 arg1) {
 }
 
 // Star item
-void apply_star_sound_effect(Player* player, s8 arg1) {
+void trigger_star(Player* player, s8 arg1) {
     clean_effect(player, arg1);
 
     player->effects |= STAR_EFFECT;
-    player->soundEffects &= ~STAR_SOUND_EFFECT;
+    player->triggers &= ~STAR_TRIGGER;
     gPlayerStarEffectStartTime[arg1] = gCourseTimer;
     D_8018D900[arg1] = 1;
 
@@ -1467,7 +1467,7 @@ void apply_boo_effect(Player* player, s8 playerIndex) {
     }
 }
 
-void apply_boo_sound_effect(Player* player, s8 playerIndex) {
+void trigger_boo(Player* player, s8 playerIndex) {
     s16 temp_v1;
 
     if ((player->type & PLAYER_HUMAN) != 0) {
@@ -1483,7 +1483,7 @@ void apply_boo_sound_effect(Player* player, s8 playerIndex) {
     clean_effect(player, playerIndex);
 
     player->effects |= BOO_EFFECT;
-    player->soundEffects &= ~BOO_SOUND_EFFECT;
+    player->triggers &= ~BOO_TRIGGER;
     gPlayerBooEffectStartTime[playerIndex] = gCourseTimer;
     gPlayerOtherScreensAlpha[playerIndex] = ALPHA_MAX;
 
@@ -1529,8 +1529,8 @@ void func_8008FC64(Player* player, s8 playerIndex) {
     player->alpha -= ALPHA_CHANGE_MEDIUM;
     if (player->alpha <= ALPHA_CHANGE_MEDIUM) {
         player->alpha = ALPHA_MIN;
-        player->soundEffects &= 0xFBFFFFFF;
-        player->soundEffects |= 0x08000000;
+        player->triggers &= ~LOSE_BATTLE_EFFECT;
+        player->triggers |= BECOME_BOMB_EFFECT;
         player->type |= PLAYER_UNKNOWN_0x40;
         func_8008FDA8(player, playerIndex);
         func_800569F4(playerIndex);
@@ -1541,7 +1541,7 @@ void func_8008FCDC(Player* player, s8 arg1) {
     player->alpha += ALPHA_CHANGE_SMALL;
     if (player->alpha > ALPHA_MAX - (ALPHA_CHANGE_LARGE * 2)) {
         player->alpha = ALPHA_MAX;
-        player->soundEffects &= ~0x08000000;
+        player->triggers &= ~BECOME_BOMB_EFFECT;
     }
     func_80056A40(arg1, (u32) player->alpha);
 }
@@ -1549,7 +1549,7 @@ void func_8008FCDC(Player* player, s8 arg1) {
 void func_8008FD4C(Player* player, UNUSED s8 arg1) {
     s16 temp_v0;
 
-    player->soundEffects |= 0x04000000;
+    player->triggers |= LOSE_BATTLE_EFFECT;
     player->unk_044 |= 0x200;
 
     for (temp_v0 = 0; temp_v0 < 10; ++temp_v0) {
@@ -1576,21 +1576,21 @@ void func_8008FDF4(Player* player, UNUSED s8 arg1) {
     player->kartHopJerk = D_800E37F0[player->characterId];
     player->kartHopAcceleration = 0.0f;
     player->kartHopVelocity = D_800E37D0[player->characterId];
-    player->soundEffects &= ~0x00100000;
-    player->effects |= 0x10000000;
+    player->triggers &= ~UNUSED_TRIGGER_0x10000;
+    player->effects |= UNKNOWN_EFFECT_0x10000000;
 }
 
 void func_8008FE84(Player* player, UNUSED s8 arg1) {
     player->effects &= ~0x10;
     if ((player->effects & 8) != 8) {
-        player->effects &= ~0x10000000;
+        player->effects &= ~UNKNOWN_EFFECT_0x10000000;
         player->currentSpeed /= 2;
         player->kartPropulsionStrength /= 2;
     }
 }
 
 void func_8008FEDC(Player* player, UNUSED s8 arg1) {
-    player->effects &= ~0x10000000;
+    player->effects &= ~UNKNOWN_EFFECT_0x10000000;
     player->kartHopJerk = 0.0f;
     player->kartHopVelocity = 0.0f;
     player->kartHopAcceleration = 0.0f;
diff --git a/src/effects.h b/src/effects.h
index 99b80ecc5..2bd2996c1 100644
--- a/src/effects.h
+++ b/src/effects.h
@@ -59,7 +59,7 @@ void func_8008D0E4(Player*, s8);
 void func_8008D0FC(Player*, s8);
 void func_8008D170(Player*, s8);
 void func_8008D3B0(Player*, s8);
-void apply_boost_sound_effect(Player*, s8);
+void trigger_shroom(Player*, s8);
 void apply_boost_effect(Player*);
 void remove_boost_effect(Player*);
 void func_8008D570(Player*, s8);
@@ -69,21 +69,21 @@ void func_8008D7B0(Player*, s8);
 void func_8008D8B4(Player*, s8);
 void func_8008D97C(Player*);
 void func_8008D9C0(Player*);
-void apply_hit_sound_effect(Player*, s8);
+void trigger_squish(Player*, s8);
 void apply_hit_effect(Player*, s8);
-void apply_hit_rotating_sound_effect(Player*, s8);
+void trigger_lightning_strike(Player*, s8);
 void apply_lightning_effect(Player*, s8);
 void remove_lightning_effect(Player*, s8);
 void func_8008E4A4(Player*, s8);
-void apply_reverse_sound_effect(Player*, s8);
+void trigger_vertical_tumble(Player*, s8);
 void func_8008E884(Player*, s8);
 void apply_hit_by_item_effect(Player*, s8);
-void apply_hit_by_item_sound_effect(Player*, s8);
+void trigger_high_tumble(Player*, s8);
 void remove_hit_by_item_effect(Player*, s8);
-void apply_boost_ramp_asphalt_sound_effect(Player*, s8);
+void trigger_asphalt_ramp_boost(Player*, s8);
 void apply_boost_ramp_asphalt_effect(Player*);
 void remove_boost_ramp_asphalt_effect(Player*);
-void apply_boost_ramp_wood_sound_effect(Player*, s8);
+void trigger_wood_ramp_boost(Player*, s8);
 void apply_boost_ramp_wood_effect(Player*);
 void remove_boost_ramp_wood_effect(Player*);
 void func_8008F104(Player*, s8);
@@ -93,10 +93,10 @@ void func_8008F3F4(Player*, s8);
 void func_8008F494(Player*, s8);
 void func_8008F5A4(Player*, s8);
 void apply_star_effect(Player*, s8);
-void apply_star_sound_effect(Player*, s8);
+void trigger_star(Player*, s8);
 void func_8008F86C(Player*, s8);
 void apply_boo_effect(Player*, s8);
-void apply_boo_sound_effect(Player*, s8);
+void trigger_boo(Player*, s8);
 void func_8008FB30(Player*, s8);
 void func_8008FC1C(Player*);
 void func_8008FC64(Player*, s8);
diff --git a/src/engine/objects/BombKart.cpp b/src/engine/objects/BombKart.cpp
index 4ba5ff843..3ba60d98a 100644
--- a/src/engine/objects/BombKart.cpp
+++ b/src/engine/objects/BombKart.cpp
@@ -148,7 +148,7 @@ void OBombKart::Tick() {
                         circleTimer = 0;
                         state = States::EXPLODE;
                         Behaviour = States::EXPLODE;
-                        player->soundEffects |= 0x400000;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                         player->type &= ~0x2000;
                     }
                 }
@@ -165,9 +165,9 @@ void OBombKart::Tick() {
                             Behaviour = States::EXPLODE;
                             circleTimer = 0;
                             if (IsFrappeSnowland()) {
-                                player->soundEffects |= 0x01000000;
+                                player->triggers |= HIT_BY_STAR_TRIGGER;
                             } else {
-                                player->soundEffects |= 0x400000;
+                                player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                             }
                         }
                     }
diff --git a/src/engine/objects/Mole.cpp b/src/engine/objects/Mole.cpp
index 92d357873..8cdfd0599 100644
--- a/src/engine/objects/Mole.cpp
+++ b/src/engine/objects/Mole.cpp
@@ -217,7 +217,7 @@ void OMole::func_80081D34(s32 objectIndex) {
                 if (player->effects & 0x200) {
                     func_800C9060(i, 0x1900A046U);
                 } else {
-                    player->soundEffects |= 2;
+                    player->triggers |= HIGH_TUMBLE_TRIGGER;
                 }
                 object->direction_angle[1] = camera->rot[1];
                 object->velocity[1] = (player->speed / 2) + 3.0;
diff --git a/src/engine/objects/Thwomp.cpp b/src/engine/objects/Thwomp.cpp
index b658b50ff..4a699c217 100644
--- a/src/engine/objects/Thwomp.cpp
+++ b/src/engine/objects/Thwomp.cpp
@@ -644,7 +644,7 @@ void OThwomp::func_80080B28(s32 objectIndex, s32 playerId) {
 
     player = &gPlayerOne[playerId];
     if (is_obj_flag_status_active(objectIndex, 0x00000200) != 0) {
-        if (!(player->soundEffects & 0x100)) {
+        if (!(player->triggers & THWOMP_SQUISH_TRIGGER)) {
             temp_f0 = func_80088F54(objectIndex, player);
             if ((temp_f0 <= 9.0) && !(player->effects & 0x04000000) &&
                 (has_collided_horizontally_with_player(objectIndex, player) != 0)) {
@@ -675,7 +675,7 @@ void OThwomp::func_80080B28(s32 objectIndex, s32 playerId) {
                     func_800722A4(objectIndex, 2);
                     player->unk_040 = (s16) objectIndex;
                     player->unk_046 |= 2;
-                    player->soundEffects |= 0x100;
+                    player->triggers |= THWOMP_SQUISH_TRIGGER;
                     reset_player_speed_and_velocity(player);
                 }
             }
@@ -816,7 +816,7 @@ void OThwomp::func_80080DE4(s32 arg0) {
     player = gPlayerOne;
     for (var_v1 = 0; var_v1 < NUM_PLAYERS; var_v1++, player++) {
         if (arg0 == player->unk_040) {
-            player->soundEffects &= ~0x100;
+            player->triggers &= ~THWOMP_SQUISH_TRIGGER;
             player->unk_040 = -1;
         }
     }
diff --git a/src/engine/vehicles/Boat.cpp b/src/engine/vehicles/Boat.cpp
index 5a74dc664..9a47fe1e1 100644
--- a/src/engine/vehicles/Boat.cpp
+++ b/src/engine/vehicles/Boat.cpp
@@ -205,7 +205,7 @@ void ABoat::VehicleCollision(s32 playerId, Player* player) {
                     if ((is_collide_with_vehicle(Position[0], Position[2], Velocity[0], Velocity[2], 200.0f, 60.0f,
                                                  playerX, playerZ) == 1) &&
                         (y_diff < 60.0)) {
-                        player->soundEffects |= 0x80000;
+                        player->triggers |= HIT_PADDLE_BOAT_TRIGGER;
                     }
                 }
             }
diff --git a/src/engine/vehicles/Bus.cpp b/src/engine/vehicles/Bus.cpp
index 07057d7b0..f1252c303 100644
--- a/src/engine/vehicles/Bus.cpp
+++ b/src/engine/vehicles/Bus.cpp
@@ -204,7 +204,7 @@ void ABus::VehicleCollision(s32 playerId, Player* player) {
                 if (((temp_f14) > -100.0) && ((temp_f14) < 100.0)) {
                     if (is_collide_with_vehicle(Position[0], Position[2], Velocity[0], Velocity[2], SomeArg3, SomeArg4,
                                                 spC4, spBC) == (s32) 1) {
-                        player->soundEffects |= REVERSE_SOUND_EFFECT;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                     }
                 }
             }
diff --git a/src/engine/vehicles/Car.cpp b/src/engine/vehicles/Car.cpp
index 8873d5248..9438a7332 100644
--- a/src/engine/vehicles/Car.cpp
+++ b/src/engine/vehicles/Car.cpp
@@ -205,7 +205,7 @@ void ACar::VehicleCollision(s32 playerId, Player* player) {
                 if (((temp_f14) > -100.0) && ((temp_f14) < 100.0)) {
                     if (is_collide_with_vehicle(Position[0], Position[2], Velocity[0], Velocity[2], SomeArg3, SomeArg4,
                                                 spC4, spBC) == (s32) 1) {
-                        player->soundEffects |= REVERSE_SOUND_EFFECT;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                     }
                 }
             }
diff --git a/src/engine/vehicles/TankerTruck.cpp b/src/engine/vehicles/TankerTruck.cpp
index f8a3d3d2a..ea9993652 100644
--- a/src/engine/vehicles/TankerTruck.cpp
+++ b/src/engine/vehicles/TankerTruck.cpp
@@ -204,7 +204,7 @@ void ATankerTruck::VehicleCollision(s32 playerId, Player* player) {
                 if (((temp_f14) > -100.0) && ((temp_f14) < 100.0)) {
                     if (is_collide_with_vehicle(Position[0], Position[2], Velocity[0], Velocity[2], SomeArg3, SomeArg4,
                                                 spC4, spBC) == (s32) 1) {
-                        player->soundEffects |= REVERSE_SOUND_EFFECT;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                     }
                 }
             }
diff --git a/src/engine/vehicles/Train.cpp b/src/engine/vehicles/Train.cpp
index 8b728375e..f76592756 100644
--- a/src/engine/vehicles/Train.cpp
+++ b/src/engine/vehicles/Train.cpp
@@ -272,13 +272,13 @@ void ATrain::VehicleCollision(s32 playerId, Player* player) {
                 if ((z_dist > -100.0) && (z_dist < 100.0)) {
                     if (is_collide_with_vehicle(trainCar->position[0], trainCar->position[2], trainCar->velocity[0],
                                                 trainCar->velocity[2], 60.0f, 20.0f, playerPosX, playerPosZ) == 1) {
-                        player->soundEffects |= REVERSE_SOUND_EFFECT;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                     }
                     trainCar = &Tender;
                     if (trainCar->isActive == 1) {
                         if (is_collide_with_vehicle(trainCar->position[0], trainCar->position[2], trainCar->velocity[0],
                                                     trainCar->velocity[2], 30.0f, 20.0f, playerPosX, playerPosZ) == 1) {
-                            player->soundEffects |= REVERSE_SOUND_EFFECT;
+                            player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                         }
                     }
                 }
@@ -294,7 +294,7 @@ void ATrain::VehicleCollision(s32 playerId, Player* player) {
                             if (is_collide_with_vehicle(trainCar->position[0], trainCar->position[2],
                                                         trainCar->velocity[0], trainCar->velocity[2], 30.0f, 20.0f,
                                                         playerPosX, playerPosZ) == 1) {
-                                player->soundEffects |= REVERSE_SOUND_EFFECT;
+                                player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                             }
                         }
                     }
diff --git a/src/engine/vehicles/Truck.cpp b/src/engine/vehicles/Truck.cpp
index 76914418b..a191aec37 100644
--- a/src/engine/vehicles/Truck.cpp
+++ b/src/engine/vehicles/Truck.cpp
@@ -204,7 +204,7 @@ void ATruck::VehicleCollision(s32 playerId, Player* player) {
                 if (((temp_f14) > -100.0) && ((temp_f14) < 100.0)) {
                     if (is_collide_with_vehicle(Position[0], Position[2], Velocity[0], Velocity[2], SomeArg3, SomeArg4,
                                                 spC4, spBC) == (s32) 1) {
-                        player->soundEffects |= REVERSE_SOUND_EFFECT;
+                        player->triggers |= VERTICAL_TUMBLE_TRIGGER;
                     }
                 }
             }
diff --git a/src/player_controller.c b/src/player_controller.c
index 83a46b2a7..10c9ee2e0 100644
--- a/src/player_controller.c
+++ b/src/player_controller.c
@@ -725,12 +725,12 @@ void func_80029B4C(Player* player, UNUSED f32 arg1, f32 arg2, UNUSED f32 arg3) {
     if (player->surfaceType == BOOST_RAMP_ASPHALT) {
         if (((player->effects & BOOST_RAMP_ASPHALT_EFFECT) != BOOST_RAMP_ASPHALT_EFFECT) &&
             ((player->effects & 8) != 8)) {
-            player->soundEffects |= BOOST_RAMP_ASPHALT_SOUND_EFFECT;
+            player->triggers |= BOOST_RAMP_ASPHALT_TRIGGER;
         }
     }
     if (player->surfaceType == BOOST_RAMP_WOOD) {
         if (((player->effects & BOOST_RAMP_WOOD_EFFECT) != BOOST_RAMP_WOOD_EFFECT) && ((player->effects & 8) != 8)) {
-            player->soundEffects |= BOOST_RAMP_WOOD_SOUND_EFFECT;
+            player->triggers |= BOOST_RAMP_WOOD_TRIGGER;
         }
     }
 }
@@ -810,12 +810,12 @@ void func_8002A194(Player* player, f32 x, f32 y, f32 z) {
   if (player->surfaceType == BOOST_RAMP_ASPHALT) {
       if (((player->effects & BOOST_RAMP_ASPHALT_EFFECT) != BOOST_RAMP_ASPHALT_EFFECT) &&
           ((player->effects & 8) != 8)) {
-          player->soundEffects |= BOOST_RAMP_ASPHALT_SOUND_EFFECT;
+          player->triggers |= BOOST_RAMP_ASPHALT_TRIGGER;
       }
   }
   if (player->surfaceType == BOOST_RAMP_WOOD) {
       if (((player->effects & BOOST_RAMP_WOOD_EFFECT) != BOOST_RAMP_WOOD_EFFECT) && ((player->effects & 8) != 8)) {
-          player->soundEffects |= BOOST_RAMP_WOOD_SOUND_EFFECT;
+          player->triggers |= BOOST_RAMP_WOOD_TRIGGER;
       }
   }
 }
@@ -856,7 +856,7 @@ void func_8002A5F4(Vec3f arg0, f32 arg1, Vec3f arg2, f32 arg3, f32 arg4) {
 
 void func_8002A704(Player* player, s8 arg1) {
     player->effects |= BOOST_EFFECT;
-    player->soundEffects &= ~0x02000000;
+    player->triggers &= ~START_BOOST_TRIGGER;
     if (((player->type & PLAYER_HUMAN) == PLAYER_HUMAN) &&
         ((player->type & PLAYER_INVISIBLE_OR_BOMB) != PLAYER_INVISIBLE_OR_BOMB)) {
         func_800C90F4(0U, (player->characterId * 0x10) + 0x29008001);
@@ -938,7 +938,7 @@ void kart_hop(Player* player) {
     player->kartHopJerk = gKartHopJerkTable[player->characterId];
     player->kartHopAcceleration = 0.0f;
     player->kartHopVelocity = gKartHopInitialVelocityTable[player->characterId];
-    player->effects |= 2;
+    player->effects |= HIGH_TUMBLE_TRIGGER;
     player->unk_DAC = 3.0f;
     player->kartGravity = 500.0f;
     func_80036C5C(player);
@@ -1121,123 +1121,138 @@ void func_8002B218(Player* player) {
     }
 }
 
-void apply_sound_effect(Player* player, s8 playerId, UNUSED s8 screenId) {
-    if ((player->soundEffects & 2) == 2) {
-        apply_hit_by_item_sound_effect(player, playerId);
+void apply_triggers(Player* player, s8 playerId, UNUSED s8 screenId) {
+    if ((player->triggers & HIGH_TUMBLE_TRIGGER) == HIGH_TUMBLE_TRIGGER) {
+        trigger_high_tumble(player, playerId);
     }
-    if ((player->soundEffects & 4) == 4) {
+    if ((player->triggers & LOW_TUMBLE_TRIGGER) == LOW_TUMBLE_TRIGGER) {
         func_8008C528(player, playerId);
     }
-    if ((player->soundEffects & 1) == 1) {
+    if ((player->triggers & HIT_BANANA_TRIGGER) == HIT_BANANA_TRIGGER) {
         func_8008CDC0(player, playerId);
     }
-    if ((player->soundEffects & BOOST_SOUND_EFFECT) == BOOST_SOUND_EFFECT) {
-        apply_boost_sound_effect(player, playerId);
+    if ((player->triggers & SHROOM_TRIGGER) == SHROOM_TRIGGER) {
+        trigger_shroom(player, playerId);
     }
-    if ((player->soundEffects & 0x02000000) == 0x02000000) {
+    if ((player->triggers & START_BOOST_TRIGGER) == START_BOOST_TRIGGER) {
         func_8002A704(player, playerId);
     }
-    if ((player->soundEffects & 0x1000) == 0x1000) {
+    if ((player->triggers & UNUSED_TRIGGER_0x1000) == UNUSED_TRIGGER_0x1000) {
         func_8008D570(player, playerId);
     }
-    if ((player->soundEffects & 0x20000) == 0x20000) {
+    if ((player->triggers & UNUSED_TRIGGER_0x20000) == UNUSED_TRIGGER_0x20000) {
         func_8008D7B0(player, playerId);
     }
-    if ((player->soundEffects & HIT_SOUND_EFFECT) == HIT_SOUND_EFFECT) {
-        apply_hit_sound_effect(player, playerId);
+    if ((player->triggers & THWOMP_SQUISH_TRIGGER) == THWOMP_SQUISH_TRIGGER) {
+        trigger_squish(player, playerId);
     }
-    if ((player->soundEffects & HIT_ROTATING_SOUND_EFFECT) == HIT_ROTATING_SOUND_EFFECT) {
-        apply_hit_rotating_sound_effect(player, playerId);
+    if ((player->triggers & LIGHTNING_STRIKE_TRIGGER) == LIGHTNING_STRIKE_TRIGGER) {
+        trigger_lightning_strike(player, playerId);
     }
-    if ((player->soundEffects & 0x200000) == 0x200000) {
+    if ((player->triggers & SPINOUT_TRIGGER) == SPINOUT_TRIGGER) {
         func_8008C73C(player, playerId);
     }
-    if ((player->soundEffects & REVERSE_SOUND_EFFECT) == REVERSE_SOUND_EFFECT) {
-        apply_reverse_sound_effect(player, playerId);
+    if ((player->triggers & VERTICAL_TUMBLE_TRIGGER) == VERTICAL_TUMBLE_TRIGGER) {
+        trigger_vertical_tumble(player, playerId);
     }
-    if ((player->soundEffects & HIT_BY_ITEM_SOUND_EFFECT) == HIT_BY_ITEM_SOUND_EFFECT) {
-        apply_hit_by_item_sound_effect(player, playerId);
+    if ((player->triggers & HIT_BY_STAR_TRIGGER) == HIT_BY_STAR_TRIGGER) {
+        trigger_high_tumble(player, playerId);
     }
-    if ((player->soundEffects & BOOST_RAMP_ASPHALT_SOUND_EFFECT) == BOOST_RAMP_ASPHALT_SOUND_EFFECT) {
-        apply_boost_ramp_asphalt_sound_effect(player, playerId);
+    if ((player->triggers & BOOST_RAMP_ASPHALT_TRIGGER) == BOOST_RAMP_ASPHALT_TRIGGER) {
+        trigger_asphalt_ramp_boost(player, playerId);
     }
-    if ((player->soundEffects & BOOST_RAMP_WOOD_SOUND_EFFECT) == BOOST_RAMP_WOOD_SOUND_EFFECT) {
-        apply_boost_ramp_wood_sound_effect(player, playerId);
+    if ((player->triggers & BOOST_RAMP_WOOD_TRIGGER) == BOOST_RAMP_WOOD_TRIGGER) {
+        trigger_wood_ramp_boost(player, playerId);
     }
-    if ((player->soundEffects & STAR_SOUND_EFFECT) == STAR_SOUND_EFFECT) {
-        apply_star_sound_effect(player, playerId);
+    if ((player->triggers & STAR_TRIGGER) == STAR_TRIGGER) {
+        trigger_star(player, playerId);
     }
-    if ((player->soundEffects & BOO_SOUND_EFFECT) == BOO_SOUND_EFFECT) {
-        apply_boo_sound_effect(player, playerId);
+    if ((player->triggers & BOO_TRIGGER) == BOO_TRIGGER) {
+        trigger_boo(player, playerId);
     }
-    if (player->soundEffects & 0x80) {
+    if (player->triggers & DRIVING_SPINOUT_TRIGGER) {
         func_8008D0FC(player, playerId);
     }
-    if (player->soundEffects & 0x80000) {
-        apply_reverse_sound_effect(player, playerId);
+    if (player->triggers & HIT_PADDLE_BOAT_TRIGGER) {
+        trigger_vertical_tumble(player, playerId);
     }
 }
 
 void func_8002B5C0(Player* player, UNUSED s8 playerId, UNUSED s8 screenId) {
     if (((player->unk_0CA & 8) != 0) || ((player->unk_0CA & 2) != 0)) {
-        player->soundEffects &= 0xFE1D0478;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // Green shell
     if ((player->effects & 0x400) == 0x400) {
-        player->soundEffects &= 0xFF5D457E;
+        player->triggers &= ALL_TRIGGERS & ~(ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // Spinout (banana or driving)
     if (((player->effects & 0x80) == 0x80) || ((player->effects & 0x40) == 0x40)) {
-        player->soundEffects &= 0xFF5F457E;
+        player->triggers &= (ALL_TRIGGERS & ~(ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS)) | UNUSED_TRIGGER_0x20000;
     }
+    // Near spinout (banana)
     if ((player->effects & 0x800) == 0x800) {
-        player->soundEffects &= 0xFF5D457E;
+        player->triggers &= ALL_TRIGGERS & ~(ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
     if ((player->unk_044 & 0x4000) != 0) {
-        player->soundEffects &= 0xFF5D457E;
+        player->triggers &= ALL_TRIGGERS & ~(ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    //unclear
     if ((player->effects & 0x80000) == 0x80000) {
-        player->soundEffects &= 0xFE1D4478;
+        player->triggers &= ALL_TRIGGERS & ~((HIT_TRIGGERS ^ LIGHTNING_STRIKE_TRIGGER) | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    //unclear
     if ((player->effects & 0x800000) == 0x800000) {
-        player->soundEffects &= 0xFE1D0478;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    //squished
     if ((player->effects & HIT_EFFECT) == HIT_EFFECT) {
-        player->soundEffects &= 0xFE1D0578;
+        player->triggers &= (ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS)) | THWOMP_SQUISH_TRIGGER;
     }
-    if ((player->effects & 0x01000000) == 0x01000000) {
-        player->soundEffects &= 0xFE1D4478;
+    //explosion crash
+    if ((player->effects & UNKNOWN_EFFECT_0x1000000) == UNKNOWN_EFFECT_0x1000000) {
+        player->triggers &= ALL_TRIGGERS & ~((HIT_TRIGGERS ^ LIGHTNING_STRIKE_TRIGGER) | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // hit by star or red shell
     if ((player->effects & HIT_BY_ITEM_EFFECT) == HIT_BY_ITEM_EFFECT) {
-        player->soundEffects &= 0xFE1D4478;
+        player->triggers &= ALL_TRIGGERS & ~((HIT_TRIGGERS ^ LIGHTNING_STRIKE_TRIGGER) | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // boost asphalt
     if ((player->effects & BOOST_RAMP_ASPHALT_EFFECT) == BOOST_RAMP_ASPHALT_EFFECT) {
-        player->soundEffects &= 0xFE1D0478;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // boost ramp
     if ((player->effects & BOOST_RAMP_WOOD_EFFECT) == BOOST_RAMP_WOOD_EFFECT) {
-        player->soundEffects &= 0xFE1D0478;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
-    if ((player->effects & 0x10000) == 0x10000) {
-        player->soundEffects &= 0xFE1D0478;
+    // Terrain tumble
+    if ((player->effects & UNKNOWN_EFFECT_0x10000) == UNKNOWN_EFFECT_0x10000) {
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // star
     if ((player->effects & STAR_EFFECT) == STAR_EFFECT) {
-        player->soundEffects &= 0xFE9D8478;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | SHROOM_TRIGGER | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // boo
     if ((player->effects & BOO_EFFECT) == BOO_EFFECT) {
-        player->soundEffects &= 0xFE9D8678;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
+    // early start spinout
     if ((player->effects & 0x4000) == 0x4000) {
-        player->soundEffects &= 0xFF5D45FF;
+        player->triggers &= ALL_TRIGGERS & ~(ANY_BOOST_TRIGGERS | SPINOUT_TRIGGER | STATE_TRANSITION_TRIGGERS);
     }
+    // CPU_FAST_EFFECTS
     if ((player->effects & 0x20000) == 0x20000) {
-        player->soundEffects &= 0xFE1D0478;
+        player->triggers &= ALL_TRIGGERS & ~(HIT_TRIGGERS | ANY_BOOST_TRIGGERS | RACING_SPINOUT_TRIGGERS | STATE_TRANSITION_TRIGGERS);
     }
 }
 
 void func_8002B830(Player* player, s8 playerId, s8 screenId) {
-    if (player->soundEffects != 0) {
+    if (player->triggers != 0) {
         func_8002B5C0(player, playerId, screenId);
     }
-    if (player->soundEffects != 0) {
-        apply_sound_effect(player, playerId, screenId);
+    if (player->triggers != 0) {
+        apply_triggers(player, playerId, screenId);
     }
     if ((player->unk_044 & 0x400) != 0) {
         func_800911B4(player, playerId);
@@ -1751,10 +1766,10 @@ void apply_effect(Player* player, s8 arg1, s8 arg2) {
         player_decelerate_alternative(player, 10.0f);
     }
     if (gRaceState != RACE_FINISHED) {
-        if (player->soundEffects & 0x04000000) {
+        if (player->triggers & LOSE_BATTLE_EFFECT) {
             func_8008FC64(player, arg1);
         }
-        if (player->soundEffects & 0x08000000) {
+        if (player->triggers & BECOME_BOMB_EFFECT) {
             func_8008FCDC(player, arg1);
         }
     }
@@ -3093,9 +3108,10 @@ void player_accelerate_alternative(Player* player) {
         player->kartPropulsionStrength = (player->currentSpeed * player->currentSpeed) / 25.0f;
     }
     player->unk_044 |= 0x20;
-    if ((player->soundEffects * 8) < 0) {
+    // Hacky way to check for START_SPINOUT_TRIGGER
+    if ((player->triggers * 8) < 0) {
         func_8008F104(player, player_index);
-        player->soundEffects &= 0xEFFFFFFF;
+        player->triggers &= ~START_SPINOUT_TRIGGER;
     }
 }
 
@@ -3117,9 +3133,10 @@ void player_decelerate_alternative(Player* player, f32 speed) {
         player->kartPropulsionStrength = (player->currentSpeed * player->currentSpeed) / 25.0f;
     }
     player->unk_044 &= 0xFFDF;
-    if ((player->soundEffects * 8) < 0) {
+    // Hacky way to check for START_SPINOUT_TRIGGER
+    if ((player->triggers * 8) < 0) {
         func_8008F104(player, player_index);
-        player->soundEffects &= 0xEFFFFFFF;
+        player->triggers &= ~START_SPINOUT_TRIGGER;
     }
 }
 
@@ -3359,11 +3376,11 @@ void player_accelerate_during_start_sequence(Player* player) {
             var_v0 = 8;
         }
         if ((test < var_v0) && ((player->unk_044 & 0x20) != 0x20)) {
-            player->soundEffects |= 0x02000000;
+            player->triggers |= START_BOOST_TRIGGER;
         } else if ((player->topSpeed * 0.9f) <= player->currentSpeed) {
-            if ((player->soundEffects & 0x02000000) != 0x02000000) {
-                player->soundEffects |= 0x10000000;
-                player->soundEffects &= ~0x02000000;
+            if ((player->triggers & START_BOOST_TRIGGER) != START_BOOST_TRIGGER) {
+                player->triggers |= START_SPINOUT_TRIGGER;
+                player->triggers &= ~START_BOOST_TRIGGER;
             }
         }
     }
@@ -3383,9 +3400,9 @@ void player_decelerate_during_start_sequence(Player* player, f32 speedReduction)
         player->currentSpeed = player->topSpeed;
     }
     if ((f64) player->currentSpeed <= (player->topSpeed * 0.7)) {
-        player->soundEffects &= ~0x10000000;
+        player->triggers &= ~START_SPINOUT_TRIGGER;
     }
-    player->soundEffects &= ~0x02000000;
+    player->triggers &= ~START_BOOST_TRIGGER;
     player->unk_044 &= ~0x0020;
     player->unk_098 = (player->currentSpeed * player->currentSpeed) / 25.0f;
 }
@@ -3633,7 +3650,7 @@ void func_80033AE0(Player* player, struct Controller* controller, s8 arg2) {
               (!(player->effects & 8))) &&
              (((player->speed / 18.0f) * 216.0f) >= 40.0f)) &&
             (player->driftDuration == 0)) {
-            player->soundEffects |= 0x80;
+            player->triggers |= DRIVING_SPINOUT_TRIGGER;
         }
     }
     if (((s32) player->tyres[BACK_RIGHT].surfaceType) < 0xF) {
diff --git a/src/player_controller.h b/src/player_controller.h
index 4a3f397ce..6893f64e0 100644
--- a/src/player_controller.h
+++ b/src/player_controller.h
@@ -38,7 +38,7 @@ void func_8002AE30(void);
 void func_8002AE38(Player*, s8, f32, f32, f32, f32);
 
 void func_8002B218(Player*);
-void apply_sound_effect(Player*, s8, s8);
+void apply_triggers(Player*, s8, s8);
 void func_8002B5C0(Player*, s8, s8);
 void func_8002B830(Player*, s8, s8);
 void func_8002B8A4(Player*, Player*);
diff --git a/src/racing/actors.c b/src/racing/actors.c
index abdb51c68..2bad85025 100644
--- a/src/racing/actors.c
+++ b/src/racing/actors.c
@@ -1553,13 +1553,13 @@ bool collision_yoshi_egg(Player* player, struct YoshiValleyEgg* egg) {
             func_800C98B8(player->pos, player->velocity, SOUND_ARG_LOAD(0x19, 0x01, 0x80, 0x10));
             func_800C90F4(player - gPlayerOne, (player->characterId * 0x10) + SOUND_ARG_LOAD(0x29, 0x00, 0x80, 0x0D));
         } else {
-            apply_hit_sound_effect(player, player - gPlayerOne);
+            trigger_squish(player, player - gPlayerOne);
             if ((gModeSelection == TIME_TRIALS) && ((player->type & PLAYER_CPU) == 0)) {
                 gPostTimeTrialReplayCannotSave = 1;
             }
         }
     } else {
-        apply_hit_sound_effect(player, player - gPlayerOne);
+        trigger_squish(player, player - gPlayerOne);
     }
 
     return true;
@@ -1757,7 +1757,7 @@ void destroy_destructable_actor(struct Actor* actor) {
                     break;
                 case HELD_BANANA:
                     player = &gPlayers[banana->playerId];
-                    player->soundEffects &= ~0x00040000;
+                    player->triggers &= ~DRAG_ITEM_EFFECT;
                     /* fallthrough */
                 case BANANA_ON_GROUND:
                     banana->flags = -0x8000;
@@ -1852,7 +1852,7 @@ void destroy_destructable_actor(struct Actor* actor) {
             fakeItemBox = (struct FakeItemBox*) actor;
             player = &gPlayers[(s16) fakeItemBox->playerId];
             if (fakeItemBox->state == HELD_FAKE_ITEM_BOX) {
-                player->soundEffects &= ~0x00040000;
+                player->triggers &= ~DRAG_ITEM_EFFECT;
             }
             fakeItemBox->state = DESTROYED_FAKE_ITEM_BOX;
             fakeItemBox->flags = -0x8000;
@@ -1977,7 +1977,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
             if (player->effects & (BOO_EFFECT | 0x8C0)) {
                 break;
             }
-            if (player->soundEffects & 1) {
+            if (player->triggers & HIT_BANANA_TRIGGER) {
                 break;
             }
             temp_v1 = actor->rot[0];
@@ -1985,7 +1985,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                 (query_collision_player_vs_actor_item(player, actor) != COLLISION)) {
                 break;
             }
-            player->soundEffects |= 1;
+            player->triggers |= HIT_BANANA_TRIGGER;
             owner = &gPlayers[temp_v1];
             if (owner->type & 0x4000) {
                 if (actor->flags & 0xF) {
@@ -2006,7 +2006,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
             if (player->effects & 0x80000400) {
                 break;
             }
-            if (player->soundEffects & 4) {
+            if (player->triggers & LOW_TUMBLE_TRIGGER) {
                 break;
             }
             temp_v1 = actor->rot[2];
@@ -2014,7 +2014,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                 (query_collision_player_vs_actor_item(player, actor) != COLLISION)) {
                 break;
             }
-            player->soundEffects |= 4;
+            player->triggers |= LOW_TUMBLE_TRIGGER;
             func_800C98B8(player->pos, player->velocity, SOUND_ARG_LOAD(0x19, 0x01, 0x80, 0x10));
             owner = &gPlayers[temp_v1];
             if ((owner->type & 0x4000) && (temp_lo != temp_v1)) {
@@ -2023,7 +2023,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
             destroy_destructable_actor(actor);
             break;
         case ACTOR_BLUE_SPINY_SHELL:
-            if (player->soundEffects & 2) {
+            if (player->triggers & HIGH_TUMBLE_TRIGGER) {
                 break;
             }
             temp_v1 = actor->rot[2];
@@ -2032,7 +2032,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                 break;
             }
             if (!(player->effects & BOO_EFFECT)) {
-                player->soundEffects |= 2;
+                player->triggers |= HIGH_TUMBLE_TRIGGER;
                 func_800C98B8(player->pos, player->velocity, SOUND_ARG_LOAD(0x19, 0x01, 0x80, 0x10));
             }
             owner = &gPlayers[temp_v1];
@@ -2048,7 +2048,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
             if (player->effects & 0x01000000) {
                 break;
             }
-            if (player->soundEffects & 2) {
+            if (player->triggers & HIGH_TUMBLE_TRIGGER) {
                 break;
             }
             temp_v1 = actor->rot[2];
@@ -2057,7 +2057,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                 break;
             }
             if (!(player->effects & BOO_EFFECT)) {
-                player->soundEffects |= 2;
+                player->triggers |= HIGH_TUMBLE_TRIGGER;
                 func_800C98B8(player->pos, player->velocity, SOUND_ARG_LOAD(0x19, 0x01, 0x80, 0x10));
             }
             owner = &gPlayers[temp_v1];
@@ -2102,7 +2102,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                     if (player->effects & STAR_EFFECT) {
                         actor->velocity[1] = 10.0f;
                     } else {
-                        apply_hit_sound_effect(player, player - gPlayerOne);
+                        trigger_squish(player, player - gPlayerOne);
                     }
                 }
             }
@@ -2117,7 +2117,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                 (query_collision_player_vs_actor_item(player, actor) != COLLISION)) {
                 break;
             }
-            player->soundEffects |= REVERSE_SOUND_EFFECT;
+            player->triggers |= VERTICAL_TUMBLE_TRIGGER;
             owner = &gPlayers[temp_v1];
             if (owner->type & 0x4000) {
                 if (actor->flags & 0xF) {
@@ -2132,7 +2132,7 @@ void evaluate_collision_between_player_actor(Player* player, struct Actor* actor
                     }
                 }
                 if (actor->state == 0) {
-                    owner->soundEffects &= ~0x00040000;
+                    owner->triggers &= ~DRAG_ITEM_EFFECT;
                 }
             }
             actor->state = 2;
diff --git a/src/racing/actors_extended.c b/src/racing/actors_extended.c
index c21eb6918..ed2710674 100644
--- a/src/racing/actors_extended.c
+++ b/src/racing/actors_extended.c
@@ -294,7 +294,7 @@ void update_actor_banana_bunch(struct BananaBunchParent* banana_bunch) {
             }
             if (someCount == 0) {
                 destroy_actor((struct Actor*) banana_bunch);
-                owner->soundEffects &= ~HOLD_BANANA_SOUND_EFFECT;
+                owner->triggers &= ~DRAG_ITEM_EFFECT;
             } else if ((owner->type & 0x4000) != 0) {
                 controller = &gControllers[banana_bunch->playerId];
                 if ((controller->buttonPressed & Z_TRIG) != 0) {
@@ -526,7 +526,7 @@ s32 use_banana_bunch_item(Player* player) {
     bananaBunch = (struct BananaBunchParent*) GET_ACTOR(actorIndex);
     bananaBunch->state = 0;
     bananaBunch->playerId = player - gPlayerOne;
-    player->soundEffects |= HOLD_BANANA_SOUND_EFFECT;
+    player->triggers |= DRAG_ITEM_EFFECT;
     return actorIndex;
 }
 
@@ -804,7 +804,7 @@ s32 use_fake_itembox_item(Player* player) {
     itemBox = (struct FakeItemBox*) GET_ACTOR(actorIndex);
     itemBox->playerId = (player - gPlayerOne);
     itemBox->state = HELD_FAKE_ITEM_BOX;
-    player->soundEffects |= HOLD_BANANA_SOUND_EFFECT;
+    player->triggers |= DRAG_ITEM_EFFECT;
     return actorIndex;
 }
 
@@ -851,7 +851,7 @@ s32 use_banana_item(Player* player) {
     banana->playerId = playerId;
     banana->state = HELD_BANANA;
     banana->unk_04 = 0x0014;
-    player->soundEffects |= HOLD_BANANA_SOUND_EFFECT;
+    player->triggers |= DRAG_ITEM_EFFECT;
     return actorIndex;
 }
 
@@ -873,7 +873,7 @@ void use_thunder_item(Player* player) {
     for (index = 0; index < NUM_PLAYERS; index++) {
         otherPlayer = &gPlayers[index];
         if (player != otherPlayer) {
-            otherPlayer->soundEffects |= HIT_ROTATING_SOUND_EFFECT;
+            otherPlayer->triggers |= LIGHTNING_STRIKE_TRIGGER;
         }
     }
 }
@@ -899,22 +899,22 @@ void player_use_item(Player* player) {
             use_banana_bunch_item(player);
             break;
         case ITEM_MUSHROOM:
-            player->soundEffects |= BOOST_SOUND_EFFECT;
+            player->triggers |= SHROOM_TRIGGER;
             break;
         case ITEM_DOUBLE_MUSHROOM:
-            player->soundEffects |= BOOST_SOUND_EFFECT;
+            player->triggers |= SHROOM_TRIGGER;
             break;
         case ITEM_TRIPLE_MUSHROOM:
-            player->soundEffects |= BOOST_SOUND_EFFECT;
+            player->triggers |= SHROOM_TRIGGER;
             break;
         case ITEM_SUPER_MUSHROOM:
-            player->soundEffects |= BOOST_SOUND_EFFECT;
+            player->triggers |= SHROOM_TRIGGER;
             break;
         case ITEM_BOO:
-            player->soundEffects |= BOO_SOUND_EFFECT;
+            player->triggers |= BOO_TRIGGER;
             break;
         case ITEM_STAR:
-            player->soundEffects |= STAR_SOUND_EFFECT;
+            player->triggers |= STAR_TRIGGER;
             break;
         case ITEM_THUNDERBOLT:
             use_thunder_item(player);
diff --git a/src/racing/race_logic.c b/src/racing/race_logic.c
index f640d74a7..099d0d626 100644
--- a/src/racing/race_logic.c
+++ b/src/racing/race_logic.c
@@ -533,7 +533,7 @@ void func_8028EF28(void) {
                                 }
                                 gRaceState = RACE_FINISHED;
                                 i = gPlayerPositionLUT[1];
-                                gPlayers[i].soundEffects |= 0x200000;
+                                gPlayers[i].triggers |= SPINOUT_TRIGGER;
                                 gPlayers[i].type |= PLAYER_CPU;
                                 func_800CA118((u8) i);
                                 break;
@@ -551,7 +551,7 @@ void func_8028EF28(void) {
                                     if (*(gNmiUnknown2 + i * 3 + 2) > 99) {
                                         *(gNmiUnknown2 + i * 3 + 2) = 99;
                                     }
-                                    gPlayers[i].soundEffects |= 0x200000;
+                                    gPlayers[i].triggers |= SPINOUT_TRIGGER;
                                     gPlayers[i].type |= PLAYER_CPU;
                                     func_800CA118((u8) i);
                                 }
@@ -566,7 +566,7 @@ void func_8028EF28(void) {
                                 if (currentPosition == 2) {
                                     gRaceState = RACE_FINISHED;
                                     i = gPlayerPositionLUT[3];
-                                    gPlayers[i].soundEffects |= 0x200000;
+                                    gPlayers[i].triggers |= SPINOUT_TRIGGER;
                                     gPlayers[i].type |= PLAYER_CPU;
                                     func_800CA118((u8) i);
                                 }
@@ -1127,22 +1127,22 @@ void func_802903D8(Player* playerOne, Player* playerTwo) {
             func_800C9060((playerTwo - gPlayerOne), 0x19008001U);
             return;
         } else {
-            playerTwo->soundEffects |= REVERSE_SOUND_EFFECT;
+            playerTwo->triggers |= VERTICAL_TUMBLE_TRIGGER;
             func_8008FC1C(playerOne);
             func_800C9060((playerTwo - gPlayerOne), 0x19008001U);
         }
     } else if (playerTwo->type & PLAYER_UNKNOWN_0x40) {
-        playerOne->soundEffects |= REVERSE_SOUND_EFFECT;
+        playerOne->triggers |= VERTICAL_TUMBLE_TRIGGER;
         func_8008FC1C(playerTwo);
         func_800C9060(playerOne - gPlayerOne, 0x19008001U);
         return;
     }
     if (playerOne->effects & 0x200) {
         if (!(playerTwo->effects & 0x200)) {
-            playerTwo->soundEffects |= HIT_BY_ITEM_SOUND_EFFECT;
+            playerTwo->triggers |= HIT_BY_STAR_TRIGGER;
         }
     } else if (playerTwo->effects & 0x200) {
-        playerOne->soundEffects |= HIT_BY_ITEM_SOUND_EFFECT;
+        playerOne->triggers |= HIT_BY_STAR_TRIGGER;
     } else {
         playerOne->effects |= 0x8000;
         playerTwo->effects |= 0x8000;
diff --git a/src/render_player.c b/src/render_player.c
index e188d8bfd..c5a3ac6da 100644
--- a/src/render_player.c
+++ b/src/render_player.c
@@ -1392,8 +1392,8 @@ void render_kart(Player* player, s8 playerId, s8 screenId, s8 flipOffset) {
                              AA_EN | Z_CMP | Z_UPD | IM_RD | CVG_DST_WRAP | ZMODE_XLU | CVG_X_ALPHA | FORCE_BL |
                                  GBL_c2(G_BL_CLR_IN, G_BL_A_IN, G_BL_CLR_MEM, G_BL_1MA));
         }
-    } else if (((player->unk_0CA & 4) == 4) || (player->soundEffects & 0x08000000) ||
-               (player->soundEffects & 0x04000000)) {
+    } else if (((player->unk_0CA & 4) == 4) || (player->triggers & BECOME_BOMB_EFFECT) ||
+               (player->triggers & LOSE_BATTLE_EFFECT)) {
         gSPMatrix(gDisplayListHead++, GetKartMatrix(playerId + (screenId * 8)),
                   G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
         gSPDisplayList(gDisplayListHead++, common_setting_render_character);
diff --git a/src/spawn_players.c b/src/spawn_players.c
index 61bc1b1be..0d2f23346 100644
--- a/src/spawn_players.c
+++ b/src/spawn_players.c
@@ -177,7 +177,7 @@ void spawn_player(Player* player, s8 playerIndex, f32 startingRow, f32 startingC
     player->unk_DAC = 0.0f;
     player->unk_044 = 0;
     player->unk_046 = 0;
-    player->soundEffects = 0;
+    player->triggers = 0;
     player->alpha = ALPHA_MAX;
 
     player->unk_206 = 0;