diff --git a/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.c b/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.c
index 69b6e0a8e2..470e7d236a 100644
--- a/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.c
+++ b/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.c
@@ -33,12 +33,15 @@ ActorProfile Bg_F40_Switch_Profile = {
     /**/ BgF40Switch_Draw,
 };
 
+#if MM_VERSION >= N64_US
 s32 sBgF40SwitchGlobalsInitialized = false;
 u32 sBgF40SwitchLastUpdateFrame;
+#endif
 
 /*
  * Updates all instances of this actor in the current room, unless it's already been called this frame.
  */
+#if MM_VERSION >= N64_US
 void BgF40Switch_CheckAll(BgF40Switch* this, PlayState* play) {
     if (play->gameplayFrames != sBgF40SwitchLastUpdateFrame) {
         u32 pressedSwitchFlags[4] = { 0 };
@@ -94,6 +97,7 @@ void BgF40Switch_CheckAll(BgF40Switch* this, PlayState* play) {
         sBgF40SwitchLastUpdateFrame = play->gameplayFrames;
     }
 }
+#endif
 
 static InitChainEntry sInitChain[] = {
     ICHAIN_F32(cullingVolumeDistance, 4000, ICHAIN_CONTINUE),
@@ -111,10 +115,12 @@ void BgF40Switch_Init(Actor* thisx, PlayState* play) {
     this->dyna.actor.world.pos.y = this->dyna.actor.home.pos.y + 1.0f;
     DynaPolyActor_Init(&this->dyna, DYNA_TRANSFORM_POS);
     DynaPolyActor_LoadMesh(play, &this->dyna, &gStoneTowerFloorSwitchCol);
+#if MM_VERSION >= N64_US
     if (!sBgF40SwitchGlobalsInitialized) {
         sBgF40SwitchLastUpdateFrame = play->gameplayFrames;
         sBgF40SwitchGlobalsInitialized = true;
     }
+#endif
 }
 
 void BgF40Switch_Destroy(Actor* thisx, PlayState* play) {
@@ -133,9 +139,22 @@ void BgF40Switch_Unpress(BgF40Switch* this, PlayState* play) {
 }
 
 void BgF40Switch_IdlePressed(BgF40Switch* this, PlayState* play) {
+#if MM_VERSION >= N64_US
     if (!this->isPressed) {
         this->actionFunc = BgF40Switch_Unpress;
     }
+#else
+    if (!DynaPolyActor_IsSwitchPressed(&this->dyna) && !Player_InCsMode(play)) {
+        if (this->switchReleaseDelay <= 0) {
+            this->actionFunc = BgF40Switch_Unpress;
+            Flags_UnsetSwitch(play, BGF40SWITCH_GET_SWITCH_FLAG(&this->dyna.actor));
+        } else {
+            this->switchReleaseDelay--;
+        }
+    } else {
+        this->switchReleaseDelay = 6;
+    }
+#endif
 }
 
 void BgF40Switch_Press(BgF40Switch* this, PlayState* play) {
@@ -143,10 +162,14 @@ void BgF40Switch_Press(BgF40Switch* this, PlayState* play) {
     if (this->dyna.actor.scale.y <= 0.0165f) {
         Actor_PlaySfx(&this->dyna.actor, NA_SE_EV_IKANA_BLOCK_SWITCH);
         Rumble_Request(this->dyna.actor.xyzDistToPlayerSq, 120, 20, 10);
+#if MM_VERSION >= N64_US
         if (this->isInitiator) {
             CutsceneManager_Stop(this->dyna.actor.csId);
             this->isInitiator = false;
         }
+#else
+        CutsceneManager_Stop(this->dyna.actor.csId);
+#endif
         this->actionFunc = BgF40Switch_IdlePressed;
         this->dyna.actor.scale.y = 0.0165f;
         this->switchReleaseDelay = 6;
@@ -154,32 +177,52 @@ void BgF40Switch_Press(BgF40Switch* this, PlayState* play) {
 }
 
 void BgF40Switch_WaitToPress(BgF40Switch* this, PlayState* play) {
+#if MM_VERSION >= N64_US
     if (!this->isInitiator || (this->dyna.actor.csId == CS_ID_NONE)) {
+#else
+    if (this->dyna.actor.csId == CS_ID_NONE) {
+#endif
         this->actionFunc = BgF40Switch_Press;
+#if MM_VERSION >= N64_US
         if (this->isInitiator) {
             Flags_SetSwitch(play, BGF40SWITCH_GET_SWITCH_FLAG(&this->dyna.actor));
         }
+#else
+        Flags_SetSwitch(play, BGF40SWITCH_GET_SWITCH_FLAG(&this->dyna.actor));
+#endif
     } else if (CutsceneManager_IsNext(this->dyna.actor.csId)) {
         CutsceneManager_StartWithPlayerCs(this->dyna.actor.csId, &this->dyna.actor);
         this->actionFunc = BgF40Switch_Press;
+#if MM_VERSION >= N64_US
         if (this->isInitiator) {
             Flags_SetSwitch(play, BGF40SWITCH_GET_SWITCH_FLAG(&this->dyna.actor));
         }
+#else
+        Flags_SetSwitch(play, BGF40SWITCH_GET_SWITCH_FLAG(&this->dyna.actor));
+#endif
     } else {
         CutsceneManager_Queue(this->dyna.actor.csId);
     }
 }
 
 void BgF40Switch_IdleUnpressed(BgF40Switch* this, PlayState* play) {
+#if MM_VERSION >= N64_US
     if (this->isPressed) {
         this->actionFunc = BgF40Switch_WaitToPress;
     }
+#else
+    if (DynaPolyActor_IsSwitchPressed(&this->dyna)) {
+        this->actionFunc = BgF40Switch_WaitToPress;
+    }
+#endif
 }
 
 void BgF40Switch_Update(Actor* thisx, PlayState* play) {
     BgF40Switch* this = (BgF40Switch*)thisx;
 
+#if MM_VERSION >= N64_US
     BgF40Switch_CheckAll(this, play);
+#endif
     this->actionFunc(this, play);
 }
 
diff --git a/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.h b/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.h
index 2d9fc589b3..41e85469a9 100644
--- a/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.h
+++ b/src/overlays/actors/ovl_Bg_F40_Switch/z_bg_f40_switch.h
@@ -14,9 +14,11 @@ typedef struct BgF40Switch {
     /* 0x15C */ s16 switchReleaseDelay; // frames until a pressed switch becomes released if nothing is still pressing it
     /* 0x15E */ s8 isPressed; // Logical state of the switch (pressed or unpressed). Animation state may lag behind this slightly.
     /* 0x15F */ s8 wasPressed; // used as temporary during update function
+#if MM_VERSION >= N64_US
     // true if this switch is the one that initiated a state change; false if this switch is changing as a result of another switch tied to the same flag.
     // this is a temporary flag related to something currently happening, not a permanent property of the switch.
     /* 0x160 */ s8 isInitiator;
+#endif
     /* 0x164 */ BgF40SwitchActionFunc actionFunc;
 } BgF40Switch; // size = 0x168