diff --git a/src/BGS/ch/mudhut.c b/src/BGS/ch/mudhut.c
index 95ff9cd8..d0f5d8d1 100644
--- a/src/BGS/ch/mudhut.c
+++ b/src/BGS/ch/mudhut.c
@@ -74,7 +74,7 @@ void chmudhut_update(Actor *this){
 
     if(func_80334904() == 2){
         if(!this->initialized){
-            this->marker->collidable = 0;
+            this->marker->collidable = FALSE;
             this->initialized = TRUE;
         }
 
diff --git a/src/BGS/ch/pinkegg.c b/src/BGS/ch/pinkegg.c
index 3a47cec1..8da61052 100644
--- a/src/BGS/ch/pinkegg.c
+++ b/src/BGS/ch/pinkegg.c
@@ -63,7 +63,7 @@ void chpinkegg_spawn_next(ActorMarker * arg0, u32 arg1){
 
     ((ActorLocal_PinkEgg *) &unkActor->local)->unk0 = arg1 + 1;
     ((ActorLocal_PinkEgg *) &unkActor->local)->unk4 = 5;
-    unkActor->marker->collidable = 0;
+    unkActor->marker->collidable = FALSE;
     
 }
 
@@ -87,7 +87,7 @@ void chpinkegg_collision(ActorMarker *this, ActorMarker *other_marker){
     sfxsource_play(SFX_AA_BGS_EGG_BREAKING_1, 28000);
     subaddie_set_state(thisActor, 3);
     actor_playAnimationOnce(thisActor);
-    this->collidable = 0;
+    this->collidable = FALSE;
     thisActor->unk124_6 = 0;
     if(D_803906C4[(tmp = (ActorLocal_PinkEgg *) &thisActor->local)->unk0] != 0){
         __spawnQueue_add_2(chpinkegg_spawn_next, thisActor->marker, tmp->unk0);
@@ -107,7 +107,7 @@ void chpinkegg_update(Actor *this){
     switch(this->state){
         case 1:
             if(!((ActorLocal_PinkEgg *) &this->local)->unk4){
-                this->marker->collidable = 1;
+                this->marker->collidable = TRUE;
                 subaddie_set_state(this,2);
                 
             }else{
diff --git a/src/BGS/code_9750.c b/src/BGS/code_9750.c
index 56f54e3e..d16a805c 100644
--- a/src/BGS/code_9750.c
+++ b/src/BGS/code_9750.c
@@ -74,7 +74,7 @@ void BGS_func_8038FB84(ActorMarker *this, ActorMarker *other_marker){
     FUNC_8030E8B4( SFX_87_TANKTUP_OOOHW, 1.0f, 32750, thisActor->position, 1000, 3000);
     timedFunc_set_2(0.65f, (GenFunction_2) func_8038FB40, (s32) this, (s32) other_marker);
     func_8038F51C(thisActor);
-    this->collidable = 0;
+    this->collidable = FALSE;
 }
 
 void func_8038FBF8(Actor *this){
diff --git a/src/MM/ch/hut.c b/src/MM/ch/hut.c
index 8a4abb15..c6615639 100644
--- a/src/MM/ch/hut.c
+++ b/src/MM/ch/hut.c
@@ -73,7 +73,7 @@ void    chhut_update(Actor *this){
         return;
 
     if(!this->initialized){
-        this->marker->collidable = 0;
+        this->marker->collidable = FALSE;
         this->initialized = TRUE;
     }
     switch(this->state){
diff --git a/src/MM/ch/juju.c b/src/MM/ch/juju.c
index 30fbb84b..6865adbe 100644
--- a/src/MM/ch/juju.c
+++ b/src/MM/ch/juju.c
@@ -71,7 +71,7 @@ void func_803890A0(ActorMarker *marker, s32 arg1){
     position[2] = actorPtr->position_z;
     for(i = 0; i < 4; i++){
         jujuPtr = spawn_actor_f32(ACTOR_59_JUJU, actorPtr->position, actorPtr->yaw);
-        jujuPtr->marker->collidable = 0;
+        jujuPtr->marker->collidable = FALSE;
         actorPtr = marker_getActor(marker);
         func_80388DE8(actorPtr, i, jujuPtr);
 
diff --git a/src/MM/ch/orange.c b/src/MM/ch/orange.c
index 17898123..1260a3f4 100644
--- a/src/MM/ch/orange.c
+++ b/src/MM/ch/orange.c
@@ -73,7 +73,7 @@ void MM_func_80387FF4(Actor * this){
             break;
         case ORANGE_LANDED_STATE:
             if(this->lifetime_value < 324.0){
-                this->marker->collidable = 0;
+                this->marker->collidable = FALSE;
             }
             this->lifetime_value -= 4.0;
             if(this->lifetime_value < 4.0){
diff --git a/src/core2/ba/marker.c b/src/core2/ba/marker.c
index 081d7f6a..be331dff 100644
--- a/src/core2/ba/marker.c
+++ b/src/core2/ba/marker.c
@@ -937,11 +937,11 @@ ActorMarker *baMarker_get(void){ //baMarker_get
 }
 
 void baMarker_collisionOff(void){ //player_collisionOff
-    playerMarker->collidable = 0;
+    playerMarker->collidable = FALSE;
 }
 
 void baMarker_collisionOn(void){ //player_collisionOn
-    playerMarker->collidable = 1;
+    playerMarker->collidable = TRUE;
 }
 
 bool baMarker_isCollidable(void){ //player_isCollidable
diff --git a/src/core2/ch/badShad.c b/src/core2/ch/badShad.c
index 2470d14c..f2cf4eb2 100644
--- a/src/core2/ch/badShad.c
+++ b/src/core2/ch/badShad.c
@@ -27,7 +27,7 @@ void chBadShad_update(Actor *this){
     s32 iVar1;
     if(!this->initialized){
         this->initialized = TRUE;
-        this->marker->collidable = 0;
+        this->marker->collidable = FALSE;
     }
     if(!this->despawn_flag && this->unk1C_x < (f32)(globalTimer_getTime() - 1) ){
         //unlink
diff --git a/src/core2/ch/code_468E0.c b/src/core2/ch/code_468E0.c
index 64187280..b1cb9007 100644
--- a/src/core2/ch/code_468E0.c
+++ b/src/core2/ch/code_468E0.c
@@ -35,7 +35,7 @@ void func_802CD8C0(Actor *this){
     if(!this->volatile_initialized){
         this->volatile_initialized = TRUE;
         this->marker->unk2C_1 = 1;
-        this->marker->collidable = 0;
+        this->marker->collidable = FALSE;
         *(s32*)this->unkBC = 0; //TODO Make struct
         if(volatileFlag_get(VOLATILE_FLAG_1) || volatileFlag_get(VOLATILE_FLAG_1F_IN_CHARACTER_PARADE)){
             marker_despawn(this->marker);
diff --git a/src/core2/ch/jigsawdance.c b/src/core2/ch/jigsawdance.c
index 3d5a6964..dd18cd9e 100644
--- a/src/core2/ch/jigsawdance.c
+++ b/src/core2/ch/jigsawdance.c
@@ -41,7 +41,7 @@ Actor *__chJigsawDance_draw(ActorMarker *this, Gfx **gdl, Mtx **mptr, Vtx **arg3
 void __chJigsawDance_update(Actor * this){
     AnimCtrl *plyrMvmt;
 
-    this->marker->collidable = 0;
+    this->marker->collidable = FALSE;
     switch(this->state){
         case 1:
             break;
diff --git a/src/core2/ch/jinjo.c b/src/core2/ch/jinjo.c
index 4d4e88be..45fc9eed 100644
--- a/src/core2/ch/jinjo.c
+++ b/src/core2/ch/jinjo.c
@@ -53,7 +53,7 @@ void __chJinjo_802CDBA8(ActorMarker *this, ActorMarker *other){
         if(item_adjustByDiffWithHud(ITEM_12_JINJOS, 1 << (this->id + 6) ) == 0x1f)
             localPtr->unk4 = 1;
         actor_loopAnimation(actorPtr);
-        this->collidable = 0;
+        this->collidable = FALSE;
     }
 }
 
diff --git a/src/core2/code_9E370.c b/src/core2/code_9E370.c
index b091f414..7cbf85e1 100644
--- a/src/core2/code_9E370.c
+++ b/src/core2/code_9E370.c
@@ -1974,11 +1974,11 @@ void func_8032AA58(Actor *this, f32 arg1){
 }
 
 void actor_collisionOff(Actor* this){
-    this->marker->collidable = 0;
+    this->marker->collidable = FALSE;
 }
 
 void actor_collisionOn(Actor* this){
-    this->marker->collidable = 1;
+    this->marker->collidable = TRUE;
 }
 
 void func_8032AA9C(void){
diff --git a/src/core2/code_A5BC0.c b/src/core2/code_A5BC0.c
index d2330292..a786617b 100644
--- a/src/core2/code_A5BC0.c
+++ b/src/core2/code_A5BC0.c
@@ -1158,7 +1158,7 @@ ActorMarker * marker_init(s32 *pos, MarkerDrawFunc draw_func, int arg2, int mark
     marker->roll = 0;
     marker->unk2C_2 = 0;
     marker->unk2C_1 = 0;
-    marker->collidable = 1;
+    marker->collidable = TRUE;
     marker->unk3E_0 = 0; 
     marker->unk40_22 = 0;
     marker->unk40_19 = 0;
diff --git a/src/core2/code_CC1E0.c b/src/core2/code_CC1E0.c
index 5efeb409..0506f919 100644
--- a/src/core2/code_CC1E0.c
+++ b/src/core2/code_CC1E0.c
@@ -168,7 +168,7 @@ void fxegg_head_spawn(void){
     f32 tmp_f8 = 20.0f;
 
     marker->unk2C_1 = 1;
-    marker->collidable = 1;
+    marker->collidable = TRUE;
     func_803300B8(marker, fxegg_collide);
     func_8033EA40(0, 20.0f);
     func_8033EA40(1, 0.0f);