diff --git a/include/m_event.h b/include/m_event.h
index 18051ae8..8dd65041 100644
--- a/include/m_event.h
+++ b/include/m_event.h
@@ -52,6 +52,20 @@ extern "C" {
 #define mEv_TO_DAY(month_day) ((lbRTC_day_t)(month_day))
 #define mEv_TO_MONTH(month_day) ((lbRTC_month_t)((month_day) >> 8))
 
+enum {
+    mEv_TITLEDEMO_STAFFROLL = -9,
+    mEv_TITLEDEMO_LOGO = -1,
+
+    mEv_TITLEDEMO_NONE = 0,
+    mEv_TITLEDEMO_START1,
+    mEv_TITLEDEMO_START2,
+    mEv_TITLEDEMO_START3,
+    mEv_TITLEDEMO_START4,
+    mEv_TITLEDEMO_START5,
+
+    mEv_TITLEDEMO_NUM
+};
+
 typedef union event_monthday_s {
     struct {
         u8 month;
@@ -632,6 +646,8 @@ extern void mEv_SetGateway();
 extern int mEv_CheckGateway();
 extern void mEv_UnSetGateway();
 extern int mEv_CheckTitleDemo();
+#define mEv_IsTitleDemo() (mEv_CheckTitleDemo() > mEv_TITLEDEMO_NONE)
+#define mEv_IsNotTitleDemo() (!mEv_IsTitleDemo())
 extern void mEv_SetTitleDemo(int demo_number);
 extern void mEv_RenewalDataEveryDay();
 extern void mEv_GetEventWeather(s16* weather, s16* intensity);
diff --git a/src/actor/ac_animal_logo.c b/src/actor/ac_animal_logo.c
index 328bed63..ec5ef18d 100644
--- a/src/actor/ac_animal_logo.c
+++ b/src/actor/ac_animal_logo.c
@@ -110,8 +110,8 @@ static void aAL_actor_dt(ACTOR* actor, GAME* game) {
     Common_Set(clip.animal_logo_clip, NULL);
   }
 
-  if (mEv_CheckTitleDemo() != -1) {
-    mEv_SetTitleDemo(0);
+  if (mEv_CheckTitleDemo() != mEv_TITLEDEMO_LOGO) {
+    mEv_SetTitleDemo(mEv_TITLEDEMO_NONE);
   }
 
   cKF_SkeletonInfo_R_dt(&logo_actor->animal.skeleton);
diff --git a/src/actor/ac_douzou_move.c_inc b/src/actor/ac_douzou_move.c_inc
index 175f5d24..0631f4c4 100644
--- a/src/actor/ac_douzou_move.c_inc
+++ b/src/actor/ac_douzou_move.c_inc
@@ -18,7 +18,7 @@ static int aDOU_set_check(int house_no) {
     Private_c* priv = Save_GetPointer(private_data[player_no]);
     mHm_hs_c* house = Save_GetPointer(homes[house_no]);
 
-    if (mEv_CheckTitleDemo() != 0 && mEv_CheckTitleDemo() != -1 && mEv_CheckTitleDemo() != -9) {
+    if (mEv_CheckTitleDemo() != mEv_TITLEDEMO_NONE && mEv_CheckTitleDemo() != mEv_TITLEDEMO_LOGO && mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL) {
         return FALSE;
     } else if (mLd_PlayerManKindCheckNo(player_no) || mPr_CheckPrivate(priv) == FALSE) {
         return FALSE;
diff --git a/src/actor/ac_quest_manager.c b/src/actor/ac_quest_manager.c
index 218a1ef0..518167c8 100644
--- a/src/actor/ac_quest_manager.c
+++ b/src/actor/ac_quest_manager.c
@@ -1360,7 +1360,7 @@ static void aQMgr_actor_move_main(ACTOR* actorx, GAME* game) {
 
     u8 mode = *manager->mode;
 
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         (*move_proc[mode])(manager);
     }
 
diff --git a/src/actor/ac_train0_move.c_inc b/src/actor/ac_train0_move.c_inc
index b05e10c8..c99ac36d 100644
--- a/src/actor/ac_train0_move.c_inc
+++ b/src/actor/ac_train0_move.c_inc
@@ -33,7 +33,7 @@ static void aTR0_set_effect(ACTOR* actor, GAME* game) {
         pos.x += 36.0f;
         pos.y += 110.0f;
 
-        if (mEv_CheckTitleDemo() == 0) {
+        if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE) {
             eEC_CLIP->effect_make_proc(eEC_EFFECT_KISHA_KEMURI, pos, 1, 0, game, train0->actor_class.npc_id, 0, 0);
         }
     } else {
@@ -52,7 +52,7 @@ static void aTR0_steam_work_sub(ACTOR* actor, GAME* game, int x_idx) {
     pos.y = train0->actor_class.world.position.y + 21.0f;
     pos.z = train0->actor_class.world.position.z + 42.0f;
     unk2c0 = train0->arg2;
-    if (mEv_CheckTitleDemo() == 0) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE) {
         (*Common_Get(clip.effect_clip)->effect_make_proc)(eEC_EFFECT_STEAM, pos, 1, angl[x_idx], game,
                                                           train0->actor_class.npc_id, 0, 0);
     }
@@ -177,7 +177,7 @@ static void aTR0_actor_move(ACTOR* actor, GAME* game) {
         aTR0_steam_work(actor, game);
     }
 
-    if (mEv_CheckTitleDemo() == 1) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_START1) {
         train0->arg0_f = -125.0f + train0->actor_class.world.position.x;
     } else {
         aTR0_ctrl_back_car(actor);
diff --git a/src/actor/ac_train1_move.c_inc b/src/actor/ac_train1_move.c_inc
index 73bfdfc2..d5d960dc 100644
--- a/src/actor/ac_train1_move.c_inc
+++ b/src/actor/ac_train1_move.c_inc
@@ -112,7 +112,7 @@ static void aTR1_setupAction(TRAIN1_ACTOR* train1, int action) {
     train1->action = action;
 
     if ((train1->action == 6) || (train1->action == 4)) {
-        if ((mEv_CheckTitleDemo() == 0) && (tr_speed != train1->arg0_f)) {
+        if ((mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE) && (tr_speed != train1->arg0_f)) {
             aTR1_OngenTrgStart((ACTOR*)train1, 43);
         } else {
             tr_speed = end;
@@ -129,7 +129,7 @@ static void aTR1_actor_move(ACTOR* actor, GAME* game) {
     cKF_SkeletonInfo_R_c* keyframe = &train1->keyframe;
 
     train1->keyframe_state = cKF_SkeletonInfo_R_play(keyframe);
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         aTR1_position_move((ACTOR*)train1);
     }
     aTR1_passenger_ctrl((ACTOR*)train1);
diff --git a/src/actor/ac_uki_draw.c_inc b/src/actor/ac_uki_draw.c_inc
index 501f8fdc..0820a3be 100644
--- a/src/actor/ac_uki_draw.c_inc
+++ b/src/actor/ac_uki_draw.c_inc
@@ -74,7 +74,7 @@ static void aUKI_actor_draw(ACTOR* actorx, GAME* game) {
     gSPMatrix(POLY_OPA_DISP++, _Matrix_to_Mtx_new(graph), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
     gDPSetPrimColor(POLY_OPA_DISP++, 0, 128, uki->color[0], uki->color[1], uki->color[2], 255);
 
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         item = mPlib_Get_controller_data_for_title_demo_p()->equipped_item;
     } else {
         item = Now_Private->equipment;
diff --git a/src/actor/ac_weather.c b/src/actor/ac_weather.c
index 5dd71c4c..0388e980 100644
--- a/src/actor/ac_weather.c
+++ b/src/actor/ac_weather.c
@@ -250,7 +250,7 @@ static void aWeather_ChangeEnvSE(ACTOR* actorx, GAME* game, s16 status, s16 leve
         weather->current_sound_effect = -1000;
     }
 
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         if (Save_Get(scene_no) == SCENE_START_DEMO || Save_Get(scene_no) == SCENE_START_DEMO2 ||
             Save_Get(scene_no) == SCENE_START_DEMO3) {
             return;
@@ -383,14 +383,14 @@ static void Weather_Actor_ct(ACTOR* actor, GAME* game) {
 
     aWeather_SetClip(actor, 0);
 
-    if (mEv_CheckTitleDemo() > 0) {
-        cur = mEv_CheckTitleDemo() - 1;
+    if (mEv_IsTitleDemo()) {
+        cur = mEv_CheckTitleDemo() - mEv_TITLEDEMO_START1;
 
         weather->current_status = DemoWeatherTbl[cur][0];
         weather->next_status = DemoWeatherTbl[cur][0];
         weather->current_level = DemoWeatherTbl[cur][1];
         weather->current_aim_level = DemoWeatherTbl[cur][1];
-    } else if (mFI_GetClimate() == 1) {
+    } else if (mFI_GetClimate() == mFI_CLIMATE_ISLAND) {
         weather->current_status = Common_Get(island_weather);
         weather->next_status = Common_Get(island_weather);
         weather->current_level = Common_Get(island_weather_intensity);
@@ -595,7 +595,7 @@ static void aWeather_ChangeWeatherTime0(ACTOR* actorx) {
     s16 evWeather, evIntensity;
     s16 save_weather;
 
-    if ((mEv_CheckTitleDemo() <= 0)) {
+    if (mEv_IsNotTitleDemo()) {
         if ((Save_Get(scene_no) == SCENE_START_DEMO) || (Save_Get(scene_no) == SCENE_START_DEMO2) ||
             Save_Get(scene_no) == SCENE_START_DEMO3) {
             return;
@@ -607,21 +607,21 @@ static void aWeather_ChangeWeatherTime0(ACTOR* actorx) {
                 rndWeather = evWeather;
                 rndIntensity = evIntensity;
             }
-            if ((mEv_CheckRealArbeit() == 1) && (rndWeather == 1)) {
-                rndWeather = 0;
-                rndIntensity = 0;
+            if ((mEv_CheckRealArbeit() == TRUE) && (rndWeather == mEnv_WEATHER_RAIN)) {
+                rndWeather = mEnv_WEATHER_CLEAR;
+                rndIntensity = mEnv_WEATHER_INTENSITY_NONE;
             }
             mTM_off_renew_time(0);
 
             save_weather = mEnv_SAVE_GET_WEATHER_TYPE(Save_Get(weather));
-            if (rndWeather == 0 || rndWeather == 3) {
-                if (save_weather == 2 || save_weather == 1) {
+            if (rndWeather == mEnv_WEATHER_CLEAR || rndWeather == mEnv_WEATHER_SAKURA) {
+                if (save_weather == mEnv_WEATHER_SNOW || save_weather == mEnv_WEATHER_RAIN) {
                     mEnv_PreRainNowFine_Init();
                 }
             }
             Save_Set(weather, rndIntensity | (rndWeather * 16));
 
-            if (((mEv_CheckTitleDemo() != -9) || (weather->sound_flag != 1)) && (mFI_CheckInIsland() == 0)) {
+            if (((mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL) || (weather->sound_flag != 1)) && (mFI_CheckInIsland() == 0)) {
                 aWeather_RequestChangeWeather(actorx, rndWeather, rndIntensity);
             }
             Common_Set(weather_time, Common_Get(time.rtc_time));
diff --git a/src/actor/ac_weather_rain.c b/src/actor/ac_weather_rain.c
index 38c1b2ea..942993cf 100644
--- a/src/actor/ac_weather_rain.c
+++ b/src/actor/ac_weather_rain.c
@@ -74,7 +74,7 @@ static void aWeatherRain_make(ACTOR* actor, GAME* game) {
             pos_mod.x += x;
             pos_mod.z += z;
 
-            if (mEv_CheckTitleDemo() == -9) {
+            if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_STAFFROLL) {
                 PLAYER_ACTOR* player = get_player_actor_withoutCheck(play);
 
                 pos_mod.y = 70.0f + (120.0f + player->actor_class.world.position.y);
@@ -108,7 +108,7 @@ static void aWeatherRain_MakePicha(ACTOR* actor, GAME* game, xyz_t pos) {
     f32 y;
 
     if (priv_num != -1) {
-        if (mEv_CheckTitleDemo() == -9) {
+        if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_STAFFROLL) {
             PLAYER_ACTOR* player = get_player_actor_withoutCheck(play);
 
             y = player->actor_class.world.position.y;
diff --git a/src/actor/npc/ac_npc_ct.c_inc b/src/actor/npc/ac_npc_ct.c_inc
index 472fd3bf..77ffc7cc 100644
--- a/src/actor/npc/ac_npc_ct.c_inc
+++ b/src/actor/npc/ac_npc_ct.c_inc
@@ -343,7 +343,7 @@ static void aNPC_actor_ct(ACTOR* actorx, GAME* game, aNPC_ct_data_c* ct_data) {
 
         nactorx->draw.frame_sub_speed = 1.0f;
 
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             actorx->status_data.weight = 0;
         }
 
diff --git a/src/actor/npc/ac_npc_ctrl.c_inc b/src/actor/npc/ac_npc_ctrl.c_inc
index b5a62cf7..7ad2a76a 100644
--- a/src/actor/npc/ac_npc_ctrl.c_inc
+++ b/src/actor/npc/ac_npc_ctrl.c_inc
@@ -1046,7 +1046,7 @@ static void aNPC_actor_move_c(ACTOR* actorx, GAME* game) {
     GAME_PLAY* play = (GAME_PLAY*)game;
 
     aNPC_dma_cloth_data(actorx);
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         aNPC_greeting_area_check(play);
     }
 
diff --git a/src/actor/npc/ac_npc_save.c_inc b/src/actor/npc/ac_npc_save.c_inc
index ffcc6a4c..7eca7dd4 100644
--- a/src/actor/npc/ac_npc_save.c_inc
+++ b/src/actor/npc/ac_npc_save.c_inc
@@ -72,7 +72,7 @@ static void aNPC_actor_save_for_special(ACTOR* actorx) {
 static void aNPC_actor_save(ACTOR* actorx, GAME* game) {
     NPC_ACTOR* nactorx = (NPC_ACTOR*)actorx;
 
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         if (ITEM_NAME_GET_TYPE(actorx->npc_id) == NAME_TYPE_NPC) {
             aNPC_actor_save_for_normal(actorx);
         } else {
diff --git a/src/actor/npc/ac_npc_station_master_schedule.c_inc b/src/actor/npc/ac_npc_station_master_schedule.c_inc
index 075708b0..70929b2d 100644
--- a/src/actor/npc/ac_npc_station_master_schedule.c_inc
+++ b/src/actor/npc/ac_npc_station_master_schedule.c_inc
@@ -280,7 +280,7 @@ static void aSTM_think_init_proc(NPC_ACTOR* nactorx, GAME_PLAY* play) {
     } else if (mEv_CheckFirstJob() == TRUE) {
         think_idx = aSTM_THINK_5;
     } else {
-        if (mEv_CheckTitleDemo() <= 0) {
+        if (mEv_IsNotTitleDemo()) {
             actorx->world.position.x += mFI_UT_WORLDSIZE_X_F;
         }
 
diff --git a/src/actor/npc/ac_npc_talk.c_inc b/src/actor/npc/ac_npc_talk.c_inc
index cea83d9b..3e0aaa37 100644
--- a/src/actor/npc/ac_npc_talk.c_inc
+++ b/src/actor/npc/ac_npc_talk.c_inc
@@ -646,7 +646,7 @@ static void aNPC_talk_request_check(ACTOR* actorx, GAME* game) {
 
     if ((nactorx->condition_info.demo_flg & aNPC_COND_DEMO_SKIP_TALK_CHECK) == 0 &&
         nactorx->condition_info.talk_condition == aNPC_TALK_TYPE_NONE && !nactorx->condition_info.hide_flg) {
-        if (mEv_CheckTitleDemo() == 0 || mEv_CheckTitleDemo() == -9) {
+        if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE || mEv_CheckTitleDemo() == mEv_TITLEDEMO_STAFFROLL) {
             if (nactorx->action.idx != aNPC_ACT_TALK) {
 #ifndef aNPC_NPC2
                 if (ITEM_NAME_GET_TYPE(actorx->npc_id) == NAME_TYPE_SPNPC &&
diff --git a/src/actor/npc/ac_npc_think.c_inc b/src/actor/npc/ac_npc_think.c_inc
index f0ffc514..2459640a 100644
--- a/src/actor/npc/ac_npc_think.c_inc
+++ b/src/actor/npc/ac_npc_think.c_inc
@@ -45,7 +45,7 @@ static int aNPC_check_uzai(NPC_ACTOR* nactorx, GAME_PLAY* play) {
     // clang-format on
     int ret = FALSE;
 
-    if (mEv_CheckTitleDemo() > 0 || (nactorx->condition_info.demo_flg & aNPC_COND_DEMO_SKIP_UZAI_CHECK)) {
+    if (mEv_IsTitleDemo() || (nactorx->condition_info.demo_flg & aNPC_COND_DEMO_SKIP_UZAI_CHECK)) {
         nactorx->uzai.flag = 0;
         return FALSE;
     }
diff --git a/src/actor/npc/ac_npc_totakeke_talk.c_inc b/src/actor/npc/ac_npc_totakeke_talk.c_inc
index ab7daa81..2aa6a479 100644
--- a/src/actor/npc/ac_npc_totakeke_talk.c_inc
+++ b/src/actor/npc/ac_npc_totakeke_talk.c_inc
@@ -156,8 +156,8 @@ static int aNTT_change_talk_proc(NPC_TOTAKEKE_ACTOR* totakeke, int talk) {
                                  aNTT_talk_submenu,     aNTT_talk_submenu2, aNTT_talk_give };
     totakeke->proc = proc[talk];
     if (talk == aNTT_TALK_STOP_PLAYER) {
-        mEv_SetTitleDemo(-0x9);
-        mDemo_Set_talk_return_demo_wait(0x1);
+        mEv_SetTitleDemo(mEv_TITLEDEMO_STAFFROLL);
+        mDemo_Set_talk_return_demo_wait(TRUE);
         totakeke->_9ab = FALSE;
     }
     return TRUE;
@@ -227,7 +227,7 @@ static int aNTT_talk_init(ACTOR* actorx, GAME* game) {
         case aNTT_THINK_GIVE_MERODY:
         case aNTT_THINK_POCKETS_FULL:
         case aNTT_THINK_GIVE_LATER:
-            mEv_SetTitleDemo(0);
+            mEv_SetTitleDemo(mEv_TITLEDEMO_NONE);
             break;
     }
     return TRUE;
diff --git a/src/effect/ef_anahikari.c b/src/effect/ef_anahikari.c
index 688f8017..500461db 100644
--- a/src/effect/ef_anahikari.c
+++ b/src/effect/ef_anahikari.c
@@ -50,7 +50,7 @@ static void eAnahikari_dw(eEC_Effect_c* effect, GAME* game) {
     idx = effect->arg0;
     play = (GAME_PLAY*)game;
 
-    if (mEv_CheckTitleDemo() != -9) {
+    if (mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL) {
         if (effect->state == eEC_STATE_NORMAL) {
             alpha = (int)eEC_CLIP->calc_adjust_proc(effect->timer, 0, 60, 200.0f, 0.0f);
         } else if (effect->state == eEC_STATE_FINISHED) {
diff --git a/src/effect/ef_hanabi_switch.c b/src/effect/ef_hanabi_switch.c
index 29823985..de994750 100644
--- a/src/effect/ef_hanabi_switch.c
+++ b/src/effect/ef_hanabi_switch.c
@@ -47,7 +47,7 @@ static void eHanabiSwitch_ct(eEC_Effect_c* effect, GAME* game, void* ct_arg) {
 
 static void eHanabiSwitch_mv(eEC_Effect_c* effect, GAME* game) {
     eEC_CLIP->set_continious_env_proc(effect, 300, 300);
-    if (mEv_CheckTitleDemo() != -9) {
+    if (mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL) {
         s16 alive_frames;
         if (effect->state == 0) {
             alive_frames = EFFECT_LIFETIME - effect->timer;
diff --git a/src/effect/ef_shooting_set.c b/src/effect/ef_shooting_set.c
index f92ba309..123c0f06 100644
--- a/src/effect/ef_shooting_set.c
+++ b/src/effect/ef_shooting_set.c
@@ -86,7 +86,7 @@ static void eShootingSet_mv(eEC_Effect_c* effect, GAME* game) {
 
     eEC_CLIP->set_continious_env_proc(effect, 100, 100);
 
-    if (mEv_CheckTitleDemo() != -9) {
+    if (mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL) {
         if (effect->effect_specific[0] >= effect->effect_specific[1]) {
             effect->effect_specific[0] = 0;
             effect->effect_specific[1] = eShootingSet_GetFrame_MakeNextShooting();
diff --git a/src/game/m_banti.c b/src/game/m_banti.c
index 6c8df602..5b8766ef 100644
--- a/src/game/m_banti.c
+++ b/src/game/m_banti.c
@@ -116,7 +116,7 @@ static void banti_chk_disp_left(GAME_PLAY* play) {
 }
 
 static f32 banti_calc_disp_alpha_rate(GAME_PLAY* play) {
-    if (mDemo_CheckDemo() || mEv_CheckTitleDemo() > 0 || banti.disabled) {
+    if (mDemo_CheckDemo() || mEv_IsTitleDemo() || banti.disabled) {
         banti.addressable_type = mPlayer_ADDRESSABLE_FALSE_MOVEMENT;
         add_calc(&banti.alpha, 0.0f, 1.0f - sqrtf(0.8), 0.1f,
                  0.005f); /* quickly fade out on demo screen or title or force disabled */
diff --git a/src/game/m_bgm.c b/src/game/m_bgm.c
index 4a2701a5..54c79715 100644
--- a/src/game/m_bgm.c
+++ b/src/game/m_bgm.c
@@ -661,7 +661,7 @@ static void mBGMRoom_ct(mBGMRoom* room) {
 static void mBGMTime_signal_melody(mBGMTime* time, GAME* game) {
     static u8 signal_melody_buf[mMld_MELODY_LEN];
 
-    if (mEv_CheckFirstIntro() == FALSE && mEv_CheckTitleDemo() != -9 && mFI_CheckFieldData() &&
+    if (mEv_CheckFirstIntro() == FALSE && mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL && mFI_CheckFieldData() &&
         mFI_GET_TYPE(mFI_GetFieldId()) != mFI_FIELD_DEMO_STARTDEMO && time->new_year_ev_flag == FALSE &&
         mPlib_get_player_actor_main_index(game) != mPlayer_INDEX_DEMO_GETON_BOAT &&
         mPlib_get_player_actor_main_index(game) != mPlayer_INDEX_DEMO_GETON_BOAT_SITDOWN &&
@@ -2564,7 +2564,7 @@ extern void mBGM_init() {
         mBGMForce* force = &M_bgm.force;
 
         if (field_type == mFI_FIELD_FG) {
-            if (mEv_CheckTitleDemo() > 0) {
+            if (mEv_IsTitleDemo()) {
                 mBGMPsComp_make_ps_demo(70, 0x168); // Play title music
             } else {
                 if ((force->inform != mBGMForce_INFORM_3 && force->inform != mBGMForce_INFORM_7) || force->flag) {
@@ -2596,7 +2596,7 @@ extern void mBGM_cleanup() {
         mActor_name_t field_type = mFI_GET_TYPE(field_id);
 
         if (field_type == mFI_FIELD_FG) {
-            if (mEv_CheckTitleDemo() > 0) {
+            if (mEv_IsTitleDemo()) {
                 mBGMPsComp_delete_ps_demo(70, 0x168); // Stop title music
             } else {
                 if ((force->inform != mBGMForce_INFORM_3 && force->inform != mBGMForce_INFORM_7) || force->flag) {
diff --git a/src/game/m_controller.c b/src/game/m_controller.c
index 9c1cb8a7..10f25f82 100644
--- a/src/game/m_controller.c
+++ b/src/game/m_controller.c
@@ -84,7 +84,7 @@ extern void mCon_main(GAME* game) {
  * @return TRUE when the button combination is pressed, FALSE otherwise
  **/
 extern int chkButton(u16 mask) {
-  if (mEv_CheckTitleDemo() > 0) {
+  if (mEv_IsTitleDemo()) {
     return FALSE;
   }
 
@@ -97,7 +97,7 @@ extern int chkButton(u16 mask) {
  * @return Pressed buttons
  **/
 extern u16 getButton() {
-  if (mEv_CheckTitleDemo() > 0) {
+  if (mEv_IsTitleDemo()) {
     return BUTTON_NONE;
   }
 
@@ -111,7 +111,7 @@ extern u16 getButton() {
  * @return TRUE when the button combination was pressed this frame, FALSE otherwise
  **/
 extern int chkTrigger(u16 mask) {
-  if (mEv_CheckTitleDemo() > 0) {
+  if (mEv_IsTitleDemo()) {
     return FALSE;
   }
 
@@ -124,7 +124,7 @@ extern int chkTrigger(u16 mask) {
  * @return Buttons pressed on the current frame
  **/
 extern u16 getTrigger() {
-  if (mEv_CheckTitleDemo() > 0) {
+  if (mEv_IsTitleDemo()) {
     return BUTTON_NONE;
   }
 
@@ -137,7 +137,7 @@ extern u16 getTrigger() {
  * @return Joystick X position
  **/
 extern int getJoystick_X() {
-  if (mEv_CheckTitleDemo() > 0) {
+  if (mEv_IsTitleDemo()) {
     return 0;
   }
 
@@ -150,7 +150,7 @@ extern int getJoystick_X() {
  * @return Joystick Y position
  **/
 extern int getJoystick_Y() {
-  if (mEv_CheckTitleDemo() > 0) {
+  if (mEv_IsTitleDemo()) {
     return 0;
   }
 
diff --git a/src/game/m_demo.c b/src/game/m_demo.c
index 374c18bf..44ca070a 100644
--- a/src/game/m_demo.c
+++ b/src/game/m_demo.c
@@ -816,8 +816,8 @@ static int choice_demo_sub() {
         mDemo_Request_c* request = &demo->request[i];
         int type = request->type;
 
-        if (((mEv_CheckTitleDemo() == 0 || type == mDemo_TYPE_SCROLL ||
-              (mEv_CheckTitleDemo() == -9 && type == mDemo_TYPE_SPEAK && request->actor != NULL &&
+        if (((mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE || type == mDemo_TYPE_SCROLL ||
+              (mEv_CheckTitleDemo() == mEv_TITLEDEMO_STAFFROLL && type == mDemo_TYPE_SPEAK && request->actor != NULL &&
                request->actor->id == mAc_PROFILE_NPC_TOTAKEKE)) &&
              (demo->request_save.type != mDemo_TYPE_NONE || type >= demo->priority_type)) &&
             (*check_func[type])() != FALSE) {
diff --git a/src/game/m_event.c b/src/game/m_event.c
index 46e1dafe..0afe6406 100644
--- a/src/game/m_event.c
+++ b/src/game/m_event.c
@@ -255,7 +255,7 @@ extern void mEv_UnSetGateway() {
     }
 }
 
-static int title_demo_number = -1;
+static int title_demo_number = mEv_TITLEDEMO_LOGO;
 
 extern int mEv_CheckTitleDemo() {
     return title_demo_number;
@@ -1895,7 +1895,7 @@ static void init_event(Event_c* event, int renewal_flag) {
 extern void mEv_init(Event_c* event) {
     int renewal_flag = mEv_INIT_NO_RENEWAL;
 
-    if (mEv_CheckTitleDemo() == 0 && effective_scene()) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE && effective_scene()) {
         renewal_flag = mEv_INIT_RENEWAL;
     }
 
@@ -1905,7 +1905,7 @@ extern void mEv_init(Event_c* event) {
 extern void mEv_init_force(Event_c* event) {
     int renewal_flag = mEv_INIT_NO_RENEWAL;
 
-    if (mEv_CheckTitleDemo() == 0) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE) {
         renewal_flag = mEv_INIT_FORCE_RENEWAL;
     }
 
@@ -1940,7 +1940,7 @@ extern int mEv_PlayerOK() {
 extern void mEv_run(Event_c* event) {
     status_edge = 0;
 
-    if (mEv_CheckTitleDemo() == 0) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE) {
         if (Save_Get(scene_no) == SCENE_START_DEMO || Save_Get(scene_no) == SCENE_START_DEMO2 ||
             Save_Get(scene_no) == SCENE_START_DEMO3 || Save_Get(scene_no) == SCENE_PLAYERSELECT ||
             Save_Get(scene_no) == SCENE_PLAYERSELECT_2 || Save_Get(scene_no) == SCENE_PLAYERSELECT_3 ||
@@ -2537,7 +2537,7 @@ extern int mEv_LiveSonchoPresent() {
 }
 
 extern int mEv_LivePlayer(u32 player_no) {
-    if (mEv_CheckTitleDemo() != 0) {
+    if (mEv_CheckTitleDemo() != mEv_TITLEDEMO_NONE) {
         return FALSE;
     }
 
@@ -2660,7 +2660,7 @@ extern void mEv_sp_debug_print4f(gfxprint_t* gfxprint) {
     );
 
     gfxprint_locate8x8(gfxprint, 30, 11);
-    gfxprint_printf(gfxprint, "%c%c%c%c%c%c%c%c", mEv_CheckTitleDemo() ? 'T' : '.', mEv_CheckFirstIntro() ? 'F' : '.',
+    gfxprint_printf(gfxprint, "%c%c%c%c%c%c%c%c", mEv_CheckTitleDemo() != mEv_TITLEDEMO_NONE ? 'T' : '.', mEv_CheckFirstIntro() ? 'F' : '.',
                     mEv_CheckGateway() ? 'G' : '.', mEv_CheckRealArbeit() ? 'R' : '.', mEv_CheckArbeit() ? 'A' : '.',
                     mDemo_CheckDemo() ? 'D' : '.', !mEv_PlayerOK() ? 'P' : '.',
                     !mEv_LivePlayer(Common_Get(player_no)) ? 'L' : '.');
diff --git a/src/game/m_kankyo.c b/src/game/m_kankyo.c
index a4f64953..fd9c79e6 100644
--- a/src/game/m_kankyo.c
+++ b/src/game/m_kankyo.c
@@ -1295,7 +1295,7 @@ static void mEnv_RoomTypeLightSet(GAME* game, Kankyo* kankyo) {
 }
 
 static void mEnv_rainbow_check_set() {
-    if (mFI_CheckFieldData() != FALSE && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_FIELD_FG && mEv_CheckTitleDemo() <= 0) {
+    if (mFI_CheckFieldData() != FALSE && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_FIELD_FG && mEv_IsNotTitleDemo()) {
         if (Save_Get(rainbow_reserved)) {
             if (Common_Get(time).rtc_time.month == Save_Get(rainbow_month) &&
                 Common_Get(time).rtc_time.day == Save_Get(rainbow_day)) {
@@ -2159,7 +2159,7 @@ static void mEnv_JudgeSwitchStatus() {
 
 static void mEnv_rainbow_power_calc() {
     if (Save_Get(rainbow_reserved) && mFI_CheckFieldData() && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_FIELD_FG &&
-        mEv_CheckTitleDemo() <= 0 && Common_Get(time.rtc_time).month == Save_Get(rainbow_month) &&
+        mEv_IsNotTitleDemo() && Common_Get(time.rtc_time).month == Save_Get(rainbow_month) &&
         Common_Get(time.rtc_time).day == Save_Get(rainbow_day) && Common_Get(time).now_sec >= mEnv_RAINBOW_TIME_START &&
         Common_Get(time).now_sec < mEnv_RAINBOW_TIME_END && Common_Get(time).season == mTM_SEASON_SUMMER) {
         if (chase_f(Common_GetPointer(rainbow_opacity), 1.0f, (1.0f / 1800.0f)) != FALSE) {
diff --git a/src/game/m_kankyo_weather.c_inc b/src/game/m_kankyo_weather.c_inc
index f102be81..0b9498d6 100644
--- a/src/game/m_kankyo_weather.c_inc
+++ b/src/game/m_kankyo_weather.c_inc
@@ -535,14 +535,14 @@ extern void mEnv_DecideWeather_NormalGameStart() {
 
 extern int mEnv_NowWeather() {
   switch (mEv_CheckTitleDemo()) {
-    case 1:
+    case mEv_TITLEDEMO_START1:
       return mEnv_WEATHER_SAKURA;
-    case 2:
+    case mEv_TITLEDEMO_START2:
       return mEnv_WEATHER_RAIN;
-    case 3:
-    case 4:
+    case mEv_TITLEDEMO_START3:
+    case mEv_TITLEDEMO_START4:
       return mEnv_WEATHER_CLEAR;
-    case 5:
+    case mEv_TITLEDEMO_START5:
       return mEnv_WEATHER_SNOW;
   }
 
diff --git a/src/game/m_notice.c b/src/game/m_notice.c
index 6c4836af..d3dd50a5 100644
--- a/src/game/m_notice.c
+++ b/src/game/m_notice.c
@@ -655,7 +655,7 @@ extern void mNtc_set_auto_nwrite_data() {
     lbRTC_year_t set_nwrite_years[mNtc_NWRITE_NUM];
     int write_count;
 
-    if (mEv_CheckTitleDemo() == FALSE && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_TYPE(mFI_FIELDTYPE_FG)) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_NONE && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_TYPE(mFI_FIELDTYPE_FG)) {
         int fishing_day;
         now_nwrite_year = Common_Get(auto_nwrite_year);
         if (now_nwrite_year != 0) {
diff --git a/src/game/m_play.c b/src/game/m_play.c
index f435da7d..9bd66cc1 100644
--- a/src/game/m_play.c
+++ b/src/game/m_play.c
@@ -779,8 +779,21 @@ static void draw_version(GRAPH* graph) {
 
 static void Game_play_draw(GAME_PLAY* play) {
     GRAPH* graph = play->game.graph;
+    u8 fill_r = 0;
+    u8 fill_g = 0;
+    u8 fill_b = 0;
 
-    DisplayList_initialize(graph, 0, 0, 0, &play->game);
+    // @BUG - when removing display list segment function present in N64, the devs went slightly too far
+    // and removed setting the background fill color while in the main field area.
+#ifdef BUGFIXES
+    if (Common_Get(field_type) == mFI_FIELDTYPE2_FG && mEv_CheckTitleDemo() != mEv_TITLEDEMO_STAFFROLL) {
+        fill_r = play->kankyo.base_light.background_color[0];
+        fill_g = play->kankyo.base_light.background_color[1];
+        fill_b = play->kankyo.base_light.background_color[2];
+    }
+#endif
+
+    DisplayList_initialize(graph, fill_r, fill_g, fill_b, &play->game);
 
     if ((GETREG(HREG, 80) != 10) || (GETREG(HREG, 82) != 0)) {
         setupFog(play, graph);
@@ -795,13 +808,13 @@ static void Game_play_draw(GAME_PLAY* play) {
     }
     if (zurumode_flag != 0) {
         switch (mEv_CheckTitleDemo()) {
-            case -9:
-            case -1:
+            case mEv_TITLEDEMO_STAFFROLL:
+            case mEv_TITLEDEMO_LOGO:
             default:
                 draw_version(graph);
                 break;
 
-            case 0:
+            case mEv_TITLEDEMO_NONE:
                 break;
         }
     }
diff --git a/src/game/m_player.c b/src/game/m_player.c
index 5c01cbfe..07f3a28c 100644
--- a/src/game/m_player.c
+++ b/src/game/m_player.c
@@ -621,7 +621,7 @@ static void Player_actor_init_value(ACTOR* actorx, GAME* game) {
 extern void Player_actor_ct(ACTOR* actorx, GAME* game) {
     GAME_PLAY* play = (GAME_PLAY*)game;
 
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         actorx->status_data.weight = 255;
     } else {
         actorx->status_data.weight = 50;
@@ -650,7 +650,7 @@ extern void Player_actor_dt(ACTOR* actorx, GAME* game) {
     Player_actor_Reset_bee_chase(actorx);             //
     Player_actor_Check_player_sunburn_for_dt(actorx); //
 
-    if (mEv_CheckTitleDemo() <= 0 && player->bgm_volume_mode != mPlayer_BGM_VOLUME_MODE_NORMAL) {
+    if (mEv_IsNotTitleDemo() && player->bgm_volume_mode != mPlayer_BGM_VOLUME_MODE_NORMAL) {
         switch (player->bgm_volume_mode) {
             case mPlayer_BGM_VOLUME_MODE_COLLECT_INSECTS:
                 mBGMPsComp_volume_collect_insects_end();
diff --git a/src/game/m_player_common.c_inc b/src/game/m_player_common.c_inc
index efcd25cc..65ff354b 100644
--- a/src/game/m_player_common.c_inc
+++ b/src/game/m_player_common.c_inc
@@ -1153,7 +1153,7 @@ static void Player_actor_SetupItemScale(ACTOR* actorx, GAME* game) {
 }
 
 static void Player_actor_SetupWeight(ACTOR* actorx) {
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         PLAYER_ACTOR* player = (PLAYER_ACTOR*)actorx;
         int main_idx = player->now_main_index;
 
@@ -3427,7 +3427,7 @@ static int Player_actor_Check_axe_after(ACTOR* actorx, xyz_t* target_pos_p, mAct
 }
 
 static mActor_name_t Player_actor_GetitemNo_forDamageAxe(mActor_name_t itemNo, int reflected) {
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         return itemNo;
     }
 
@@ -6856,7 +6856,7 @@ static int Player_actor_CheckAndRequest_ItemInOut(ACTOR* actorx, GAME* game, int
 }
 
 static void Player_actor_Set_bgm_volume(ACTOR* actorx, int main_index) {
-    if (mPlayer_MAIN_INDEX_VALID(main_index) != FALSE && mEv_CheckTitleDemo() <= 0) {
+    if (mPlayer_MAIN_INDEX_VALID(main_index) != FALSE && mEv_IsNotTitleDemo()) {
         // clang-format off
         static const s8 data[] = {
             mPlayer_BGM_VOLUME_MODE_NORMAL,
@@ -7059,7 +7059,7 @@ static int Player_actor_GetSnowballPos_forWadeSnowball(ACTOR* actorx, xyz_t* pos
 
 static int Player_actor_CheckCondition_forWadeSnowball(GAME* game, const xyz_t* pos_p, s16 angle_y) {
     return Player_actor_CheckAbleMoveWadeBlock(game, pos_p, angle_y, 0.65f, DEG2SHORT_ANGLE2(5.0f),
-                                               mEv_CheckTitleDemo() <= 0);
+                                               mEv_IsNotTitleDemo());
 }
 
 static void Player_actor_Culc_player_frame_counter(ACTOR* actorx) {
@@ -7446,7 +7446,7 @@ static int Player_actor_CheckAndRequest_main_pickup_all(GAME* game) {
         Player_actor_check_cancel_request_change_proc_index(mPlayer_INDEX_PICKUP) == FALSE) {
         int can_exchange = field_type == mFI_FIELDTYPE2_FG;
 
-        if (mEv_CheckTitleDemo() <= 0) {
+        if (mEv_IsNotTitleDemo()) {
             /* Check for picking up items in your house */
             if (Common_Get(clip).my_room_clip != NULL) {
                 mActor_name_t item = Common_Get(clip).my_room_clip->search_pickup_ftr_proc(game);
@@ -7528,7 +7528,7 @@ static int Player_actor_CheckAndRequest_main_pickup_all(GAME* game) {
                     mActor_name_t changed_item = ITEM_IS_SIGNBOARD(item) ? ITM_SIGNBOARD : item;
                     int item_is_signboard = item != changed_item;
 
-                    if (mEv_CheckTitleDemo() > 0) {
+                    if (mEv_IsTitleDemo()) {
                         if (Player_actor_request_main_pickup(game, changed_item, &target_pos, &item_pos, -1,
                                                              item_is_signboard)) {
                             return TRUE;
@@ -7835,7 +7835,7 @@ static void Player_actor_Reset_bee_chase(ACTOR* actorx) {
 }
 
 static void Player_actor_Check_player_sunburn_ChangeDay(void) {
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         mActor_name_t field_id = mFI_GetFieldId();
 
         if (mFI_GET_TYPE(field_id) == mFI_FIELD_FG) {
@@ -7856,7 +7856,7 @@ static void Player_actor_Check_player_sunburn_ChangeDay(void) {
 }
 
 static void Player_actor_Check_player_sunburn_rankdown_interval(ACTOR* actorx) {
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         mActor_name_t field_id = mFI_GetFieldId();
 
         if (mFI_GET_TYPE(field_id) == mFI_FIELD_FG) {
@@ -7902,7 +7902,7 @@ static void Player_actor_Check_player_sunburn_rankdown_interval(ACTOR* actorx) {
 static void Player_actor_Check_player_sunburn_rankdown(ACTOR* actorx) {
     PLAYER_ACTOR* player = (PLAYER_ACTOR*)actorx;
 
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         mActor_name_t field_id = mFI_GetFieldId();
 
         if (mFI_GET_TYPE(field_id) == mFI_FIELD_FG) {
@@ -7927,7 +7927,7 @@ static void Player_actor_Check_player_sunburn_rankdown(ACTOR* actorx) {
 static void Player_actor_Check_player_sunburn_rankup(ACTOR* actorx) {
     PLAYER_ACTOR* player = (PLAYER_ACTOR*)actorx;
 
-    if (player->player_sunburn_rankup == FALSE && mEv_CheckTitleDemo() <= 0) {
+    if (player->player_sunburn_rankup == FALSE && mEv_IsNotTitleDemo()) {
         mActor_name_t field_id = mFI_GetFieldId();
 
         if (mFI_GET_TYPE(field_id) == mFI_FIELD_FG) {
@@ -8377,7 +8377,7 @@ static int Player_actor_check_able_change_camera_normal_index(ACTOR* actorx) {
         return FALSE;
     }
 
-    if (mEv_CheckTitleDemo() <= 0 && mPlib_Check_scene_able_change_camera_pos()) {
+    if (mEv_IsNotTitleDemo() && mPlib_Check_scene_able_change_camera_pos()) {
         int main_index = player->now_main_index;
 
         if (mPlayer_MAIN_INDEX_VALID(main_index) != FALSE) {
diff --git a/src/game/m_player_controller.c_inc b/src/game/m_player_controller.c_inc
index 3b93d478..4db64eb4 100644
--- a/src/game/m_player_controller.c_inc
+++ b/src/game/m_player_controller.c_inc
@@ -1,5 +1,5 @@
 static int Player_actor_CheckController_forPickup(GAME* game) {
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         mPlayer_Controller_Data_c* data = mPlib_Get_controller_data_for_title_demo_p();
         ACTOR* actorx = GET_PLAYER_ACTOR_GAME_ACTOR(game);
         PLAYER_ACTOR* player = (PLAYER_ACTOR*)actorx;
@@ -18,7 +18,7 @@ static int Player_actor_CheckController_forAxe(GAME* game) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (mPlayer_ITEM_IS_AXE(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             return mPlib_Get_controller_data_for_title_demo_p()->trigger_btn_a;
         }
         return chkTrigger(BUTTON_A);
@@ -33,7 +33,7 @@ static int Player_actor_CheckController_forNet(GAME* game) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (mPlayer_ITEM_IS_NET(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             return mPlib_Get_controller_data_for_title_demo_p()->btn_a;
         }
         return chkButton(BUTTON_A);
@@ -48,7 +48,7 @@ static int Player_actor_CheckController_forRod(GAME* game) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (mPlayer_ITEM_IS_ROD(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             return mPlib_Get_controller_data_for_title_demo_p()->trigger_btn_a;
         }
         return chkTrigger(BUTTON_A);
@@ -63,7 +63,7 @@ static int Player_actor_CheckController_forScoop(GAME* game) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (mPlayer_ITEM_IS_SHOVEL(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             return mPlib_Get_controller_data_for_title_demo_p()->trigger_btn_a;
         }
         return chkTrigger(BUTTON_A);
@@ -78,7 +78,7 @@ static int Player_actor_CheckController_forUmbrella(GAME* game) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (mPlayer_ITEM_IS_UMBRELLA(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             return mPlib_Get_controller_data_for_title_demo_p()->trigger_btn_a;
         }
         return chkTrigger(BUTTON_A);
@@ -93,7 +93,7 @@ static int Player_actor_CheckController_forFan(GAME* game, int type) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (mPlayer_ITEM_IS_FAN(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             mPlayer_Controller_Data_c* data = mPlib_Get_controller_data_for_title_demo_p();
             if (type != 0) {
                 return data->trigger_btn_a;
@@ -117,7 +117,7 @@ static int Player_actor_CheckController_forShake_tree(GAME* game) {
     s8 kind = Player_actor_Get_ItemKind(actorx, player->now_main_index);
 
     if (!mPlayer_ITEM_KIND_CHECK(kind, 0, mPlayer_ITEM_KIND_NUM) || mPlayer_ITEM_IS_NOT_TOOL(kind) != FALSE) {
-        if (mEv_CheckTitleDemo() > 0) {
+        if (mEv_IsTitleDemo()) {
             mPlayer_Controller_Data_c* data = mPlib_Get_controller_data_for_title_demo_p();
             return (data->trigger_btn_a != 0) && (data->btn_b == 0);
         } else {
@@ -132,47 +132,47 @@ static f32 Player_actor_CheckController_forStruggle_pitfall(void) {
 }
 
 static int Player_actor_CheckController_forDush(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->btn_b
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->btn_b
                                       : mPlib_CheckButtonOnly_forDush();
 }
 
 static f32 Player_actor_GetController_move_percentX(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_pX
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_pX
                                       : gamePT->mcon.move_pX;
 }
 
 static f32 Player_actor_GetController_move_percentY(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_pY
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_pY
                                       : gamePT->mcon.move_pY;
 }
 
 static f32 Player_actor_GetController_move_percentR(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_pR
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_pR
                                       : gamePT->mcon.move_pR;
 }
 
 static s16 Player_actor_GetController_move_angle(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_angle
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.move_angle
                                       : gamePT->mcon.move_angle;
 }
 
 static s16 Player_actor_GetController_old_move_angle(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.last_move_angle
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.last_move_angle
                                       : gamePT->mcon.last_move_angle;
 }
 
 static f32 Player_actor_GetController_recognize_percentR(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.adjusted_pR
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.adjusted_pR
                                       : gamePT->mcon.adjusted_pR;
 }
 
 static f32 Player_actor_GetController_old_recognize_percentR(void) {
-    return (mEv_CheckTitleDemo() > 0) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.last_adjusted_pR
+    return (mEv_IsTitleDemo()) ? mPlib_Get_controller_data_for_title_demo_p()->mcon.last_adjusted_pR
                                       : gamePT->mcon.last_adjusted_pR;
 }
 
 static int Player_actor_CheckController_forRadio_exercise(GAME* game) {
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         return -1;
     }
 
diff --git a/src/game/m_player_item_common.c_inc b/src/game/m_player_item_common.c_inc
index 35246136..f6b309b2 100644
--- a/src/game/m_player_item_common.c_inc
+++ b/src/game/m_player_item_common.c_inc
@@ -1,11 +1,11 @@
 static void Player_actor_Set_ItemNoSubmenu(mActor_name_t item) {
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         Common_Get(now_private)->equipment = item;
     }
 }
 
 static mActor_name_t Player_actor_Get_ItemNoSubmenu(void) {
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         return mPlib_Get_controller_data_for_title_demo_p()->equipped_item;
     } else {
         return Common_Get(now_private)->equipment;
diff --git a/src/game/m_player_lib.c b/src/game/m_player_lib.c
index e0d9be1a..df55c2c6 100644
--- a/src/game/m_player_lib.c
+++ b/src/game/m_player_lib.c
@@ -3568,7 +3568,7 @@ extern mActor_name_t mPlib_Get_itemNo_forWindow(void) {
 
 extern int mPlib_able_birth_bee(void) {
     if (mEv_CheckFirstIntro() != FALSE || Common_Get(reset_flag) != FALSE ||
-        Common_Get(player_bee_chase_flag) != FALSE || mEv_CheckTitleDemo() > 0) {
+        Common_Get(player_bee_chase_flag) != FALSE || mEv_IsTitleDemo()) {
         return FALSE;
     }
 
diff --git a/src/game/m_player_main_dash.c_inc b/src/game/m_player_main_dash.c_inc
index 4c80cda4..4539076a 100644
--- a/src/game/m_player_main_dash.c_inc
+++ b/src/game/m_player_main_dash.c_inc
@@ -146,7 +146,7 @@ static void Player_actor_request_proc_index_fromDash_common(ACTOR* actor, GAME*
 
     player = (PLAYER_ACTOR*)actor;
     play = (GAME_PLAY*)game;
-    Player_actor_Set_ScrollDemo_forWade(actor, game, mEv_CheckTitleDemo() <= 0);
+    Player_actor_Set_ScrollDemo_forWade(actor, game, mEv_IsNotTitleDemo());
 
     if (!player->actor_class.bg_collision_check.result.on_ground) {
         Player_actor_request_main_fall_all(game, -5.0f, 1, mPlayer_REQUEST_PRIORITY_1);
@@ -179,7 +179,7 @@ static void Player_actor_request_proc_index_fromDash_common(ACTOR* actor, GAME*
         Player_actor_request_main_run_all(game, -5.0f, 0, mPlayer_REQUEST_PRIORITY_1);
     }
 
-    if (mEv_CheckTitleDemo() <= 0 &&
+    if (mEv_IsNotTitleDemo() &&
         (Common_Get(now_private)->destiny.type == 3 && Player_actor_Check_FlatPlace(actor))) {
         if (player->actor_class.speed / 7.5f >= 0.75f && !((int)(RANDOM_F(32768) * 2.0f) % 600)) {
             Player_actor_request_main_tumble(game, mPlayer_REQUEST_PRIORITY_6);
diff --git a/src/game/m_player_main_pickup.c_inc b/src/game/m_player_main_pickup.c_inc
index 4d36f93e..59c5efa9 100644
--- a/src/game/m_player_main_pickup.c_inc
+++ b/src/game/m_player_main_pickup.c_inc
@@ -53,7 +53,7 @@ static void Player_actor_setup_main_Pickup(ACTOR* actorx, GAME* game) {
 
     if (slot_idx >= 0) {
         main_pickup_p->exchange_flag = FALSE;
-    } else if (mEv_CheckTitleDemo() > 0) {
+    } else if (mEv_IsTitleDemo()) {
         main_pickup_p->exchange_flag = FALSE;
     } else {
         main_pickup_p->exchange_flag = TRUE;
diff --git a/src/game/m_player_main_run.c_inc b/src/game/m_player_main_run.c_inc
index 68214441..b5797bcc 100644
--- a/src/game/m_player_main_run.c_inc
+++ b/src/game/m_player_main_run.c_inc
@@ -70,7 +70,7 @@ static void Player_actor_request_proc_index_fromRun_common(ACTOR* actor, GAME* g
     PLAYER_ACTOR* player = (PLAYER_ACTOR*)actor;
     f32 speed;
 
-    Player_actor_Set_ScrollDemo_forWade(actor, game, mEv_CheckTitleDemo() <= 0);
+    Player_actor_Set_ScrollDemo_forWade(actor, game, mEv_IsNotTitleDemo());
 
     if (!actor->bg_collision_check.result.on_ground) {
         Player_actor_request_main_fall_all(game, -5.0f, 1, mPlayer_REQUEST_PRIORITY_1);
diff --git a/src/game/m_player_main_stung_mosquito.c_inc b/src/game/m_player_main_stung_mosquito.c_inc
index e59ff2a1..7291ff87 100644
--- a/src/game/m_player_main_stung_mosquito.c_inc
+++ b/src/game/m_player_main_stung_mosquito.c_inc
@@ -2,7 +2,7 @@ static int Player_actor_request_main_stung_mosquito_all(GAME* game, void* label,
     PLAYER_ACTOR* player = GET_PLAYER_ACTOR_GAME(game);
     int main_index = player->now_main_index;
 
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         return FALSE;
     }
 
diff --git a/src/game/m_player_main_walk.c_inc b/src/game/m_player_main_walk.c_inc
index e9872fc8..f4609f10 100644
--- a/src/game/m_player_main_walk.c_inc
+++ b/src/game/m_player_main_walk.c_inc
@@ -233,7 +233,7 @@ static void Player_actor_request_proc_index_fromWalk(ACTOR* actor, GAME* game) {
     f32 percent_x;
     f32 percent_y;
 
-    Player_actor_Set_ScrollDemo_forWade(actor, game, mEv_CheckTitleDemo() <= 0);
+    Player_actor_Set_ScrollDemo_forWade(actor, game, mEv_IsNotTitleDemo());
 
     if (!actor->bg_collision_check.result.on_ground) {
         Player_actor_request_main_fall_all(game, -5.0f, 1, mPlayer_REQUEST_PRIORITY_1);
diff --git a/src/game/m_player_other_func.c_inc b/src/game/m_player_other_func.c_inc
index b7c22547..0a373d43 100644
--- a/src/game/m_player_other_func.c_inc
+++ b/src/game/m_player_other_func.c_inc
@@ -176,7 +176,7 @@ static void Player_actor_check_nextgoto(ACTOR* actor, GAME* game) {
     mActor_name_t door = player->item_in_front;
 
     if (ITEM_NAME_GET_TYPE(door) == NAME_TYPE_WARP && Player_actor_check_bg_for_next_goto(actor, door) != FALSE &&
-        mEv_CheckTitleDemo() <= 0 && play->fb_wipe_mode == WIPE_MODE_NONE) {
+        mEv_IsNotTitleDemo() && play->fb_wipe_mode == WIPE_MODE_NONE) {
         if (door >= EXIT_DOOR && door < EXIT_DOOR1) {
             mDemo_Request(mDemo_TYPE_EXITSCENE, actor, Player_actor_set_nextgoto_info_type0);
 
diff --git a/src/game/m_titledemo.c b/src/game/m_titledemo.c
index 7c676bcf..3b60e879 100644
--- a/src/game/m_titledemo.c
+++ b/src/game/m_titledemo.c
@@ -14,7 +14,7 @@
 #define mTD_HEADER_TOOL 4
 #define mTD_HEADER_SIZE 5
 
-static int S_now_demono = -1;
+static int S_now_demono = mEv_TITLEDEMO_LOGO;
 static int S_tdemo_frame;
 static u16 S_titledemo_to_play;
 
@@ -26,12 +26,12 @@ static u16 get_demo_header(int titledemo_no, int key) {
 }
 
 extern int mTD_demono_get() {
-    if (S_now_demono == -1) {
-        S_now_demono = 1;
+    if (S_now_demono == mEv_TITLEDEMO_LOGO) {
+        S_now_demono = mEv_TITLEDEMO_START1;
     } else {
         S_now_demono++;
         if (S_now_demono > mTD_TITLE_DEMO_NUM) {
-            S_now_demono = 1;
+            S_now_demono = mEv_TITLEDEMO_START1;
         }
     }
 
@@ -41,9 +41,9 @@ extern int mTD_demono_get() {
 extern void mTD_player_keydata_init(GAME_PLAY* play) {
     PLAYER_ACTOR* player = get_player_actor_withoutCheck(play);
 
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         u16 angle;
-        mActor_name_t tool = get_demo_header(mEv_CheckTitleDemo() - 1, mTD_HEADER_TOOL);
+        mActor_name_t tool = get_demo_header(mEv_CheckTitleDemo() - mEv_TITLEDEMO_START1, mTD_HEADER_TOOL);
 
         if (tool == ITM_AXE) {
             tool = ITM_AXE;
@@ -54,7 +54,7 @@ extern void mTD_player_keydata_init(GAME_PLAY* play) {
         }
 
         mPlib_SetData2_controller_data_for_title_demo(tool);
-        angle = get_demo_header(mEv_CheckTitleDemo() - 1, mTD_HEADER_ROTATION);
+        angle = get_demo_header(mEv_CheckTitleDemo() - mEv_TITLEDEMO_START1, mTD_HEADER_ROTATION);
 
         player->actor_class.shape_info.rotation.y = angle;
         player->actor_class.world.angle.y = angle;
@@ -68,7 +68,7 @@ static u16 get_tdemo_keydata(int frame) {
     u16* pact_data_keydata_pt[mTD_TITLE_DEMO_NUM] = { pact0_key_data, pact1_key_data, pact2_key_data, pact3_key_data,
                                                       pact4_key_data };
 
-    return pact_data_keydata_pt[mEv_CheckTitleDemo() - 1][frame];
+    return pact_data_keydata_pt[mEv_CheckTitleDemo() - mEv_TITLEDEMO_START1][frame];
 }
 
 /* @fakematch? - the weirdness with btn_a needing to be assigned to a u8 then int needs to be investigated */
@@ -131,7 +131,7 @@ static void mTD_game_end_init(GAME_PLAY* play) {
 }
 
 extern void title_demo_move(GAME_PLAY* play) {
-    if (mEv_CheckTitleDemo() > 0) {
+    if (mEv_IsTitleDemo()) {
         set_player_demo_keydata(S_tdemo_frame);
         S_tdemo_frame++;
 
@@ -162,11 +162,11 @@ extern void mTD_rtc_reserve() {
 
 extern int mTD_get_titledemo_no() {
     int titledemo_no = S_now_demono;
-    if (titledemo_no <= 0) {
-        titledemo_no = 1;
+    if (titledemo_no <= mEv_TITLEDEMO_NONE) {
+        titledemo_no = mEv_TITLEDEMO_START1;
     }
 
-    return titledemo_no - 1;
+    return titledemo_no - mEv_TITLEDEMO_START1;
 }
 
 extern int mTD_tdemo_button_ok_check() {
diff --git a/src/game/m_trademark.c b/src/game/m_trademark.c
index 3cc02c68..cb38575c 100644
--- a/src/game/m_trademark.c
+++ b/src/game/m_trademark.c
@@ -133,8 +133,8 @@ static void trademark_goto_demo_scene(GAME_TRADEMARK* trademark) {
     mEv_ClearEventInfo();
 
     demo_no = mEv_CheckTitleDemo();
-    if (demo_no > 0) {
-        Door_data_c* demo_door_data = l_demo_door_data_table[demo_no - 1];
+    if (demo_no > mEv_TITLEDEMO_NONE) {
+        Door_data_c* demo_door_data = l_demo_door_data_table[demo_no -mEv_TITLEDEMO_START1 ];
 
         Common_Set(door_data, *demo_door_data);
         Common_Set(door_data.next_scene_id, demo_door_data->next_scene_id + 1); // go to next demo scene
diff --git a/src/game/m_train_control.c b/src/game/m_train_control.c
index 9fdc4b3b..928f24e3 100644
--- a/src/game/m_train_control.c
+++ b/src/game/m_train_control.c
@@ -101,7 +101,7 @@ static int mTRC_go_process() {
     int res = FALSE;
     int demo_no = mEv_CheckTitleDemo();
 
-    if (((int)demo_no == 0 || demo_no == 1 || demo_no == -9) && Common_Get(field_draw_type) != FIELD_DRAW_TYPE_TRAIN &&
+    if (((int)demo_no == mEv_TITLEDEMO_NONE || demo_no == mEv_TITLEDEMO_START1 || demo_no == mEv_TITLEDEMO_STAFFROLL) && Common_Get(field_draw_type) != FIELD_DRAW_TYPE_TRAIN &&
         Common_Get(field_draw_type) != FIELD_DRAW_TYPE_PLAYER_SELECT) {
         res = TRUE;
     }
@@ -212,7 +212,7 @@ static void mTRC_norm_init() {
 static int mTRC_schedule(GAME_PLAY* play) {
     int res = -1;
 
-    if (mEv_CheckTitleDemo() == 1) {
+    if (mEv_CheckTitleDemo() == mEv_TITLEDEMO_START1) {
         if (Common_Get(train_action) == mTRC_ACTION_NONE) {
             mTRC_mati_init();
         }
diff --git a/src/game/m_vibctl.c b/src/game/m_vibctl.c
index 476663a4..07981961 100644
--- a/src/game/m_vibctl.c
+++ b/src/game/m_vibctl.c
@@ -439,7 +439,7 @@ static void mVibInfo_move(mVibInfo_c* vib_info) {
 }
 
 static void mVibctl_check_title_demo() {
-  if (mFI_CheckFieldData() && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_FIELDTYPE_FG && mEv_CheckTitleDemo() > 0) {
+  if (mFI_CheckFieldData() && mFI_GET_TYPE(mFI_GetFieldId()) == mFI_FIELDTYPE_FG && mEv_IsTitleDemo()) {
     mVibctl_set_force_stop(mVibctl_FLAG_FORCE_STOP2);
   }
   else {
diff --git a/src/game/m_watch_my_step.c b/src/game/m_watch_my_step.c
index 587b10a5..3c4631b7 100644
--- a/src/game/m_watch_my_step.c
+++ b/src/game/m_watch_my_step.c
@@ -80,7 +80,7 @@ extern void watch_my_step_move(GAME_PLAY* play) {
 
     S_watch_my_step.draw_type = 0;
 
-    if (mEv_CheckTitleDemo() <= 0) {
+    if (mEv_IsNotTitleDemo()) {
         window_item = mPlib_Get_itemNo_forWindow();
 
         switch (S_watch_my_step.mode) {