diff --git a/asm/macros/map.inc b/asm/macros/map.inc
index c731112d5..0a2ac5c54 100755
--- a/asm/macros/map.inc
+++ b/asm/macros/map.inc
@@ -1,6 +1,21 @@
 	.ifndef GUARD_ASM_MACROS_MAP_INC
 	.set GUARD_ASM_MACROS_MAP_INC, 1
 
+	.set TOP_TILEDATA, gMapTop+0x4
+	.set TOP_COLLISIONDATA, gMapTop+0x2004
+	.set TOP_TILEDATACLONE, gMapTop+0x3004
+	.set TOP_METATILETYPES, gMapTop+0x5004
+	.set TOP_UNKDATA2, gMapTop+0x6004
+	.set TOP_METATILES, gMapTop+0x7004
+	.set TOP_UNKDATA3, gMapTop+0xb004
+	.set BOTTOM_TILEDATA, gMapBottom+0x4
+	.set BOTTOM_COLLISIONDATA, gMapBottom+0x2004
+	.set BOTTOM_TILEDATACLONE, gMapBottom+0x3004
+	.set BOTTOM_METATILETYPES, gMapBottom+0x5004
+	.set BOTTOM_UNKDATA2, gMapBottom+0x6004
+	.set BOTTOM_METATILES, gMapBottom+0x7004
+	.set BOTTOM_UNKDATA3, gMapBottom+0xb004
+
 	.macro room_header map_x, map_y, pixel_width, pixel_height, tileset_id
 	.2byte (\map_x) << 4
 	.2byte (\map_y) << 4
diff --git a/asm/src/code_080043E8.s b/asm/src/code_080043E8.s
index 0216f9772..98048228a 100644
--- a/asm/src/code_080043E8.s
+++ b/asm/src/code_080043E8.s
@@ -67,7 +67,7 @@ sub_0800445C: @ 0x0800445C
 	ldr r5, _080044D8 @ =gPlayerEntity
 	adds r0, r4, #0
 	adds r1, r5, #0
-	bl sub_08004484
+	bl CalcCollisionStaticEntity
 	cmp r0, #0
 	beq _08004482
 	ldrb r0, [r5, #0xc]
@@ -80,8 +80,8 @@ _08004480:
 _08004482:
 	pop {r4, r5, pc}
 
-	thumb_func_start sub_08004484
-sub_08004484: @ 0x08004484
+	thumb_func_start CalcCollisionStaticEntity
+CalcCollisionStaticEntity: @ 0x08004484
 	ldr r2, _080044DC @ =ram_sub_080B227C
 	bx r2
 
@@ -138,30 +138,34 @@ _080044E0: .4byte gUnk_02024048
 _080044E4: .4byte gUnk_02021F20
 _080044E8: .4byte gPlayerEntity
 
-	thumb_func_start sub_080044EC
-sub_080044EC: @ 0x080044EC
+	// BounceUpdate
+	// assumes initial velocity is set
+	// r0: entity*
+	// r1: acceleration
+	thumb_func_start BounceUpdate
+BounceUpdate: @ 0x080044EC
 	ldr r2, [r0, #0x34]
 	ldr r3, [r0, #0x20]
-	subs r2, r2, r3
-	bpl _080044FE
-	str r2, [r0, #0x34]
-	subs r3, r3, r1
-	str r3, [r0, #0x20]
-	movs r0, #2
+	subs r2, r3
+	bpl grounded // if z is positive, entity is grounded
+	str r2, [r0, #0x34] // entity.z = entity.z - entity.zVelocity
+	subs r3, r1
+	str r3, [r0, #0x20] // entity.zVelocity = entity.zVelocity - acceleration
+	movs r0, #2 // return 2
 	bx lr
-_080044FE:
+grounded:
 	movs r2, #1
-	str r2, [r0, #0x34]
-	subs r3, r3, r1
-	rsbs r3, r3, #0
-	lsrs r3, r3, #1
+	str r2, [r0, #0x34] // entity.z = 1 (note: player cant do certain actions at z!=0)
+	subs r3, r1
+	negs r3, r3
+	lsrs r3, #1
 	lsrs r1, r3, #2
-	adds r3, r3, r1
+	adds r3, r1 // calc next bounce velocity
 	lsrs r1, r3, #0xc
 	cmp r1, #0xc
-	bhs _08004516
-	movs r2, #0
-	movs r3, #0
+	bhs _08004516 // return 1 if bouncing
+	movs r2, #0 // return 0 if not bouncing
+	movs r3, #0 // set velocity to 0
 _08004516:
 	str r3, [r0, #0x20]
 	adds r0, r2, #0
@@ -170,7 +174,7 @@ _08004516:
 	thumb_func_start sub_0800451C
 sub_0800451C: @ 0x0800451C
 	push {r0, lr}
-	bl GetTileUnderEntity
+	bl GetActTile
 	adds r1, r0, #0
 	pop {r0, r3}
 	mov lr, r3
diff --git a/asm/src/intr.s b/asm/src/intr.s
index 4d59c9d75..4f65fa09b 100644
--- a/asm/src/intr.s
+++ b/asm/src/intr.s
@@ -86,7 +86,7 @@ arm_sub_080B1A0C: @ 0x080B1A0C
 	ldrb r2, [r0, #0x38]
 	mov r0, r3
 	b arm_GetTileTypeByPos
-arm_GetTileTypeByEntity:
+arm_GetTileTypeByEntity: // GetCell
 	ldrb r2, [r0, #0x38]
 	ldrh r1, [r0, #0x32]
 	ldrh r0, [r0, #0x2e]
@@ -129,7 +129,7 @@ arm_GetRelativeCollisionTile: @ 0x080B1A8C
 	ldrb r2, [r0, #0x38]
 	mov r0, r3
 	b arm_sub_080B1AB4
-arm_GetTileUnderEntity:
+arm_GetActTile: // GetCellAct
 	ldrb r2, [r0, #0x38]
 	ldrh r1, [r0, #0x32]
 	ldrh r0, [r0, #0x2e]
@@ -148,42 +148,46 @@ arm_sub_080B1AD8:
 	add r0, r0, r1, lsl #6
 	mov r1, r2
 arm_sub_080B1AE0:
-	ldr r2, _080B1C24 @ =gUnk_08000278
+	ldr r2, _080B1C24 @ =gUnkDataPtrs
 	ldr r2, [r2, r1, lsl #2]
 	ldrb r0, [r2, r0]
 	bx lr
 
 	arm_func_start arm_sub_080B1AF0
 arm_sub_080B1AF0: @ 0x080B1AF0
-	ldrh r3, [r0, #0x2e]
+	@ r0 = entity*
+	@ r1 = x
+	@ r2 = y
+
+	ldrh r3, [r0, #0x2e] @ ent.x + x
 	add r3, r3, r1
-	ldrh r1, [r0, #0x32]
+	ldrh r1, [r0, #0x32] @ ent.y + y
 	add r1, r1, r2
-	ldrb r2, [r0, #0x38]
+	ldrb r2, [r0, #0x38] @ ent.layer
 	mov r0, r3
 	b arm_sub_080B1B18
-arm_sub_080B1B0C:
-	ldrb r2, [r0, #0x38]
-	ldrh r1, [r0, #0x32]
-	ldrh r0, [r0, #0x2e]
+arm_sub_080B1B0C: // GetCellAtt
+	ldrb r2, [r0, #0x38] @ ent.layer
+	ldrh r1, [r0, #0x32] @ ent.y
+	ldrh r0, [r0, #0x2e] @ ent.x
 arm_sub_080B1B18:
 	ldr ip, _080B1C28 @ =gRoomControls
 	ldrh r3, [ip, #6]
-	sub r0, r0, r3
+	sub r0, r0, r3 @ ent.x - gRoomControls.origin_x
 	ldrh r3, [ip, #8]
-	sub r1, r1, r3
+	sub r1, r1, r3 @ ent.y - gRoomControls.origin_y
 arm_sub_080B1B2C:
 	lsl r0, r0, #0x16
-	lsr r0, r0, #0x1a
+	lsr r0, r0, #0x1a @ /= 16
 	lsl r1, r1, #0x16
-	lsr r1, r1, #0x1a
+	lsr r1, r1, #0x1a @ /= 16
 arm_sub_080B1B3C:
-	add r0, r0, r1, lsl #6
+	add r0, r0, r1, lsl #6 @ convert coords to tile index
 	mov r1, r2
 arm_sub_080B1B44:
 	ldr r2, _080B1C2C @ =gUnk_08000248
 	ldr r1, [r2, r1, lsl #2]
-	ldrb r0, [r1, r0]
+	ldrb r0, [r1, r0] @ load collision tile at my location
 	bx lr
 
 	arm_func_start arm_sub_080B1B54
@@ -242,7 +246,7 @@ sub_080B1BCC: @ 0x080B1BCC
 	and r1, r1, #0x3f0
 	and r2, r2, #0x3f0
 	add r1, r1, r2, lsl #6
-	ldr r2, _080B1C50 @ =gUnk_08000278
+	ldr r2, _080B1C50 @ =gUnkDataPtrs
 	ldrb r3, [r0, #0x38]
 	ldr r2, [r2, r3, lsl #2]
 	ldrb r0, [r2, r1, lsr #4]
@@ -253,7 +257,7 @@ _080B1C14: .4byte gUnk_08000258
 _080B1C18: .4byte gRoomControls
 _080B1C1C: .4byte gUnk_08000228
 _080B1C20: .4byte gRoomControls
-_080B1C24: .4byte gUnk_08000278
+_080B1C24: .4byte gUnkDataPtrs
 _080B1C28: .4byte gRoomControls
 _080B1C2C: .4byte gUnk_08000248
 _080B1C30: .4byte gUnk_080B37A0
@@ -264,7 +268,7 @@ _080B1C40: .4byte gUnk_080B7A3E
 _080B1C44: .4byte gUnk_08000360
 _080B1C48: .4byte gUnk_080B7A3E
 _080B1C4C: .4byte gRoomControls
-_080B1C50: .4byte gUnk_08000278
+_080B1C50: .4byte gUnkDataPtrs
 
 	arm_func_start UpdateCollision
 UpdateCollision: @ 0x080B1C54
@@ -424,15 +428,15 @@ _080B1E74:
 	mov ip, #0
 	bl arm_CalcCollisionDirection
 	mov r6, r0
-	ldrb r1, [r5, #0x3f]
+	ldrb r1, [r5, #0x3f] // hitType
 	mov r0, #0x22
 	mul r1, r0, r1
-	ldrb r0, [r4, #0x40]
+	ldrb r0, [r4, #0x40] // hurtType
 	add r0, r0, r1
 	mov r1, #0xc
 	mul r2, r0, r1
 	ldr r1, _080B2014 @ =gCollisionMtx
-	add r3, r2, r1
+	add r3, r2, r1 // gCollisionMtx + 12 * (34 * hurtType + hurtType)
 	mov r1, #0
 	ldrb r0, [r3]
 	cmp r0, #0xff
@@ -742,29 +746,30 @@ _080B2270: .4byte gUpdateContext
 _080B2274: .4byte gUnk_080026A4
 _080B2278: .4byte gUpdateContext
 
+	// calculating knockback?
 	arm_func_start arm_sub_080B227C
 arm_sub_080B227C: @ 0x080B227C
-	push {r4, r5, r6, r7, r8, lr}
-	ldr r2, [r0, #0x48]
+	push {r4-r8, lr}
+	ldr r2, [r0, #0x48] // tgt.hitbox
 	cmp r2, #0
-	beq _080B236C
-	ldr r3, [r1, #0x48]
+	beq ret_false
+	ldr r3, [r1, #0x48] // org.hitbox
 	cmp r3, #0
-	beq _080B236C
+	beq ret_false
 	ldrh r4, [r1, #0x2e]
 	ldrsb r5, [r3]
 	add r4, r4, r5
 	ldrh r5, [r0, #0x2e]
 	sub r4, r4, r5
 	ldrsb r5, [r2]
-	sub r4, r4, r5
+	sub r4, r4, r5 // temp = (tgt.x + tgt.hitbox.x) - (org.x + org.hitbox.x)
 	ldrb r5, [r2, #6]
 	ldrb r6, [r3, #6]
 	add r5, r5, r6
-	add r6, r4, r5
+	add r6, r4, r5 // temp = temp + (tgt.hitbox.width + org.hitbox.width)
 	lsl r7, r5, #1
 	cmp r7, r6
-	blo _080B236C
+	blo ret_false // not colliding
 	cmp r4, #0
 	movpl ip, #8
 	movmi ip, #0x18
@@ -783,7 +788,7 @@ arm_sub_080B227C: @ 0x080B227C
 	add r5, r4, r3
 	lsl r6, r3, #1
 	cmp r6, r5
-	blo _080B236C
+	blo ret_false
 	cmp r4, #0
 	movpl r2, #0x10
 	movmi r2, #0
@@ -793,7 +798,7 @@ arm_sub_080B227C: @ 0x080B227C
 	movhs r7, r8
 	movhs r2, ip
 	cmp r7, #0
-	beq _080B236C
+	beq ret_false
 	cmp r7, #5
 	movhs r7, #4
 	mov r0, r1
@@ -802,11 +807,11 @@ arm_sub_080B227C: @ 0x080B227C
 	mov lr, pc
 	bx r3
 _080B2360:
-	pop {r4, r5, r6, r7, r8, lr}
+	pop {r4-r8, lr}
 	mov r0, #1
 	bx lr
-_080B236C:
-	pop {r4, r5, r6, r7, r8, lr}
+ret_false:
+	pop {r4-r8, lr}
 	mov r0, #0
 	bx lr
 	.align 2, 0
diff --git a/asm/src/script.s b/asm/src/script.s
index 4a6070682..f1fc3cfde 100644
--- a/asm/src/script.s
+++ b/asm/src/script.s
@@ -106,7 +106,7 @@ _08016A64:
 sub_08016A6C: @ 0x08016A6C
 	push {r4, r5, lr}
 	adds r4, r0, #0
-	bl GetTileUnderEntity
+	bl GetActTile
 	add r1, pc, #0x38
 _08016A76:
 	adds r1, #4
diff --git a/asm/src/veneer.s b/asm/src/veneer.s
index c3fc5da8d..2d4846274 100644
--- a/asm/src/veneer.s
+++ b/asm/src/veneer.s
@@ -107,7 +107,7 @@ _080001CC: .4byte gMapBottom+0x6004
 	thumb_func_start sub_080001D0
 sub_080001D0: @ 0x080001D0
 	lsls r2, r2, #2
-	ldr r3, _08000220 @ =gUnk_08000278
+	ldr r3, _08000220 @ =gUnkDataPtrs
 	ldr r3, [r3, r2]
 	strb r0, [r3, r1]
 	bx lr
@@ -135,37 +135,37 @@ _08000210: .4byte gUnk_080B7910
 _08000214: .4byte gUnk_080B79A7
 _08000218: .4byte gUnk_080B37A0
 _0800021C: .4byte gUnk_080B3E80
-_08000220: .4byte gUnk_08000278
+_08000220: .4byte gUnkDataPtrs
 _08000224: .4byte gUnk_08000228
 gUnk_08000228::
-	.4byte gMapBottom+0x0004
+	.4byte BOTTOM_TILEDATA
 gUnk_0800022C::
-	.4byte gMapBottom+0x5004
-	.4byte gMapBottom+0x0004
-	.4byte gMapBottom+0x5004
-	.4byte gMapTop+0x0004
-	.4byte gMapTop+0x5004
-	.4byte gMapBottom+0x0004
-	.4byte gMapBottom+0x5004
+	.4byte BOTTOM_METATILETYPES
+	.4byte BOTTOM_TILEDATA
+	.4byte BOTTOM_METATILETYPES
+	.4byte TOP_TILEDATA
+	.4byte TOP_METATILETYPES
+	.4byte BOTTOM_TILEDATA
+	.4byte BOTTOM_METATILETYPES
 gUnk_08000248::
-	.4byte gMapBottom+0x2004
-	.4byte gMapBottom+0x2004
-	.4byte gMapTop+0x2004
-	.4byte gMapBottom+0x2004
+	.4byte BOTTOM_COLLISIONDATA
+	.4byte BOTTOM_COLLISIONDATA
+	.4byte TOP_COLLISIONDATA
+	.4byte BOTTOM_COLLISIONDATA
 gUnk_08000258::
-	.4byte gMapBottom+0x3004
-	.4byte gMapBottom+0x5004
-	.4byte gMapBottom+0x3004
-	.4byte gMapBottom+0x5004
-	.4byte gMapTop+0x3004
-	.4byte gMapTop+0x5004
-	.4byte gMapBottom+0x3004
-	.4byte gMapBottom+0x5004
-gUnk_08000278::
-	.4byte gMapBottom+0xb004
-	.4byte gMapBottom+0xb004
-	.4byte gMapTop+0xb004
-	.4byte gMapBottom+0xb004
+	.4byte BOTTOM_TILEDATACLONE
+	.4byte BOTTOM_METATILETYPES
+	.4byte BOTTOM_TILEDATACLONE
+	.4byte BOTTOM_METATILETYPES
+	.4byte TOP_TILEDATACLONE
+	.4byte TOP_METATILETYPES
+	.4byte BOTTOM_TILEDATACLONE
+	.4byte BOTTOM_METATILETYPES
+gUnkDataPtrs::
+	.4byte BOTTOM_UNKDATA3
+	.4byte BOTTOM_UNKDATA3
+	.4byte TOP_UNKDATA3
+	.4byte BOTTOM_UNKDATA3
 
 @ call 0x80B19CC
 @ ========
@@ -277,9 +277,9 @@ GetRelativeCollisionTile: @ 0x080002B4
 @ return: 
 @ ========
 @ Called every frame a pot is thrown, every frame the screen is sliding in a transition, and once when entering stairs.
-	thumb_func_start GetTileUnderEntity
-GetTileUnderEntity: @ 0x080002B8
-	ldr r3, _08000324 @ =ram_GetTileUnderEntity
+	thumb_func_start GetActTile
+GetActTile: @ 0x080002B8
+	ldr r3, _08000324 @ =ram_GetActTile
 	bx r3
 
 @ call 0x080B1AB4
@@ -362,8 +362,6 @@ sub_080B1B3C: @ 0x080002DC
 	bx r3
 
 @ call 0x080B1B44
-@ ========
-@ Unused? Doesn't seem to be called by anything in Ghidra.
 	thumb_func_start sub_080B1B44
 sub_080B1B44: @ 0x080002E0
 	ldr r3, _0800034C @ =ram_sub_080B1B44
@@ -413,7 +411,7 @@ _08000314: .4byte ram_sub_080B1A48
 _08000318: .4byte ram_sub_080B1A58
 _0800031C: .4byte ram_GetTileType
 _08000320: .4byte ram_GetRelativeCollisionTile
-_08000324: .4byte ram_GetTileUnderEntity
+_08000324: .4byte ram_GetActTile
 _08000328: .4byte ram_sub_080B1AB4
 _0800032C: .4byte ram_sub_080B1AC8
 _08000330: .4byte ram_sub_080B1AD8
diff --git a/include/asm.h b/include/asm.h
index 391ba7681..bb768be3e 100644
--- a/include/asm.h
+++ b/include/asm.h
@@ -20,11 +20,21 @@ extern void GenericKnockback(struct Entity_*);
 extern u32 GetFuserId(struct Entity_*);
 extern u32 CheckPlayerInRegion(u32 centerX, u32 centerY, u32 radiusX, u32 radiusY);
 extern u32 GravityUpdate(struct Entity_* entity, u32 gravity);
+enum {
+    BOUNCE_DONE_ALL,
+    BOUNCE_INIT_NEXT,
+    BOUNCE_AIRBORNE,
+};
+u32 BounceUpdate(struct Entity_*, u32 acceleration);
 extern u32 CheckOnScreen(struct Entity_*);
 extern bool32 EntityInRectRadius(struct Entity_*, struct Entity_*, u32, u32);
 extern void UpdateAnimationVariableFrames(struct Entity_*, u32);
 extern u32 sub_080043E8(struct Entity_*);
-extern void sub_08004484(struct Entity_*, struct Entity_*);
+/**
+ * Basic collision, only used between player and dazed enemies.
+ * (Probablity leftover from Four Swords)
+ */
+extern void CalcCollisionStaticEntity(struct Entity_*, struct Entity_*);
 extern void ResetCollisionLayer(struct Entity_*);
 extern void sub_08004596(struct Entity_*, u32);
 extern u32 sub_080045B4(struct Entity_*, u32, u32);
@@ -41,7 +51,7 @@ extern u32 sub_080B1B44(u32, u32);
 extern u32 sub_080B1A48(u32, u32, u32);
 extern u32 sub_080B1B18(s32, s32, u32);
 extern u32 sub_080B1AE0(u16, u8);
-extern u32 GetTileUnderEntity(struct Entity_*);
+extern u32 GetActTile(struct Entity_*);
 extern u32 sub_0800445C(struct Entity_*);
 extern u32 sub_080B1AF0(struct Entity_*, s32, s32);
 extern u32 GetRelativeCollisionTile(struct Entity_*, u32, u32);
diff --git a/include/common.h b/include/common.h
index 871e5f057..c9200c98a 100644
--- a/include/common.h
+++ b/include/common.h
@@ -11,9 +11,9 @@ struct Entity_;
 typedef struct {
     u16 heldKeys; /**< Keys held since last frame. */
     u16 newKeys;  /** Keys newly pressed this frame. */
-    u16 unk4;
+    u16 menuScrollKeys;
     u8 unk6;
-    u8 unk7;
+    u8 menuScrollTimer;
 } Input;
 extern Input gInput; /**< Input instance. */
 
diff --git a/include/enemy.h b/include/enemy.h
index bc9f842b1..d9bc0a763 100644
--- a/include/enemy.h
+++ b/include/enemy.h
@@ -43,7 +43,7 @@ bool32 sub_08049F84(Entity*, s32);
 Entity* sub_08049DF4(u32);
 u32 sub_0804A044(Entity*, Entity*, u32);
 s32 sub_080012DC(Entity*);
-u32 sub_080044EC(Entity*, u32);
+
 void sub_0804AA1C(Entity*);
 bool32 sub_08049F1C(Entity*, Entity*, s32);
 bool32 PlayerInRange(Entity*, u32, s32);
diff --git a/include/functions.h b/include/functions.h
index 49fb3f311..1caeb76d5 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -69,7 +69,7 @@ extern void sub_080042D0(Entity*, u32, u16);
 extern void sub_080043A8(Entity*);
 extern u32 sub_0800445C(Entity*);
 extern void sub_080044AE(Entity*, u32, u32);
-extern u32 sub_080044EC(Entity*, u32);
+extern u32 BounceUpdate(Entity*, u32);
 extern void sub_0800451C(Entity*);
 extern void sub_08004542(Entity*);
 extern void sub_080085B0(Entity*);
diff --git a/include/message.h b/include/message.h
index 32f9f582d..b25e9df53 100644
--- a/include/message.h
+++ b/include/message.h
@@ -18,11 +18,11 @@ typedef struct {
     u8 textWindowPosY;
     u16 textIndex;
     u16 unk2; // HI?
-    u32 field_0xc;
-    u32 rupees;
-    u32 field_0x14;
-    u32 field_0x18;
-    u32 field_0x1c;
+    u32 flags;
+    u32 rupees;     // item price, shells, minigame timer
+    u32 field_0x14; // number of cuccos
+    u32 field_0x18; // unused
+    u32 field_0x1c; // unused
 } Message;
 extern Message gMessage;
 
diff --git a/linker.ld b/linker.ld
index 18f9d27d5..1774c36dc 100644
--- a/linker.ld
+++ b/linker.ld
@@ -170,7 +170,7 @@ SECTIONS {
         . = 0x000057CC; ram_sub_080B1A58 = .;
         . = 0x000057D4; ram_GetTileType = .;
         . = 0x00005800; ram_GetRelativeCollisionTile = .;
-        . = 0x0000581C; ram_GetTileUnderEntity = .;
+        . = 0x0000581C; ram_GetActTile = .;
         . = 0x00005828; ram_sub_080B1AB4 = .;
         . = 0x0000583C; ram_sub_080B1AC8 = .;
         . = 0x0000584C; ram_sub_080B1AD8 = .;
diff --git a/src/collision.c b/src/collision.c
index ea0d5db9e..6ec7f5f33 100644
--- a/src/collision.c
+++ b/src/collision.c
@@ -580,7 +580,7 @@ CollisionResult sub_08017F40(Entity* org, Entity* tgt, u32 direction, ColSetting
             org->health = 0;
         }
     } else if (tgt->kind == ENEMY && org == &gPlayerEntity.base) {
-        sub_08004484(tgt, org);
+        CalcCollisionStaticEntity(tgt, org);
     }
     return RESULT_NO_COLLISION;
 }
@@ -670,14 +670,14 @@ CollisionResult sub_08018168(Entity* org, Entity* tgt, u32 direction, ColSetting
             org->health = 0;
         }
     } else if ((tgt->kind == ENEMY) && (org == &gPlayerEntity.base)) {
-        sub_08004484(tgt, &gPlayerEntity.base);
+        CalcCollisionStaticEntity(tgt, &gPlayerEntity.base);
     }
     return RESULT_NO_COLLISION;
 }
 
 CollisionResult sub_08018228(Entity* org, Entity* tgt, u32 direction, ColSettings* settings) {
     if (org == &gPlayerEntity.base && PlayerCanBeMoved())
-        sub_08004484(tgt, org);
+        CalcCollisionStaticEntity(tgt, org);
     return RESULT_NO_COLLISION;
 }
 
@@ -716,7 +716,7 @@ CollisionResult sub_080182A8(Entity* org, Entity* tgt, u32 direction, ColSetting
 CollisionResult CollisionDefault(Entity* org, Entity* tgt, u32 direction, ColSettings* settings) {
     u32 confused = 0;
     if (tgt->confusedTime && tgt->kind == ENEMY && org == &gPlayerEntity.base) {
-        sub_08004484(tgt, org);
+        CalcCollisionStaticEntity(tgt, org);
         confused = 1;
     }
     if ((org->kind == PLAYER_ITEM && org->id == PL_ITEM_SHIELD) &&
diff --git a/src/common.c b/src/common.c
index 10e200c0a..83d194cac 100644
--- a/src/common.c
+++ b/src/common.c
@@ -216,15 +216,15 @@ static void StoreKeyInput(Input* input, u32 keyInput) {
     u32 difference = keyInput & ~heldKeys;
     input->newKeys = difference;
     if (keyInput == heldKeys) {
-        if (--input->unk7 == 0) {
-            input->unk7 = 4;
-            input->unk4 = keyInput;
+        if (--input->menuScrollTimer == 0) {
+            input->menuScrollTimer = 4;
+            input->menuScrollKeys = keyInput;
         } else {
-            input->unk4 = 0;
+            input->menuScrollKeys = 0;
         }
     } else {
-        input->unk7 = 20;
-        input->unk4 = difference;
+        input->menuScrollTimer = 20;
+        input->menuScrollKeys = difference;
     }
     input->heldKeys = keyInput;
 }
diff --git a/src/debug.c b/src/debug.c
index 399dcf71b..6edbf3eed 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -73,7 +73,7 @@ void sub_0805FA98(void) {
             MessageInitialize();
             break;
         default:
-            switch (gInput.unk4) {
+            switch (gInput.menuScrollKeys) {
                 case DPAD_LEFT:
                     iVar1 = -1;
                     break;
diff --git a/src/enemy/acroBandits.c b/src/enemy/acroBandits.c
index 1e5d3057e..84963d1f4 100644
--- a/src/enemy/acroBandits.c
+++ b/src/enemy/acroBandits.c
@@ -528,7 +528,7 @@ void AcroBandit_Type1Action6(AcroBanditEntity* this) {
 void AcroBandit_Type1Action7(AcroBanditEntity* this) {
     ProcessMovement2(super);
 
-    if (sub_080044EC(super, 0x2000) == 0)
+    if (BounceUpdate(super, Q_8_8(32.0)) == BOUNCE_DONE_ALL)
         super->action = 8;
 }
 
diff --git a/src/enemy/beetle.c b/src/enemy/beetle.c
index 6b83d6dcb..d6b4d9f88 100644
--- a/src/enemy/beetle.c
+++ b/src/enemy/beetle.c
@@ -120,7 +120,7 @@ void sub_080218CC(BeetleEntity* this) {
     GetNextFrame(super);
     if (super->frame & 1) {
         ProcessMovement2(super);
-        if (sub_080044EC(super, 0x1c00) == 0)
+        if (BounceUpdate(super, Q_8_8(28.0)) == BOUNCE_DONE_ALL)
             super->frameDuration = 1;
     }
 
diff --git a/src/enemy/bobomb.c b/src/enemy/bobomb.c
index 5c15c015b..f007f779e 100644
--- a/src/enemy/bobomb.c
+++ b/src/enemy/bobomb.c
@@ -250,7 +250,7 @@ void sub_0802CAF8(BobombEntity* this) {
     if (--super->timer == 0) {
         sub_0802CBC4(this);
     } else {
-        if (this->unk_81 && sub_080044EC(super, 0x2800) == 1) {
+        if (this->unk_81 && BounceUpdate(super, Q_8_8(40.0)) == BOUNCE_INIT_NEXT) {
             EnqueueSFX(SFX_PLACE_OBJ);
         }
         sub_0802CC18(this);
diff --git a/src/enemy/bombPeahat.c b/src/enemy/bombPeahat.c
index d0fd3a22a..44ea5007b 100644
--- a/src/enemy/bombPeahat.c
+++ b/src/enemy/bombPeahat.c
@@ -474,7 +474,7 @@ void sub_0802AEBC(BombPeahatEntity* this) {
 void sub_0802AED4(BombPeahatEntity* this) {
     GetNextFrame(super);
     if (this->unk_81 < 2) {
-        if (sub_080044EC(super, 0x2800) == 1) {
+        if (BounceUpdate(super, Q_8_8(40.0)) == BOUNCE_INIT_NEXT) {
             this->unk_81++;
         }
     } else {
@@ -673,7 +673,7 @@ void sub_0802B1BC(BombPeahatEntity* this) {
 #endif
 
 void sub_0802B204(BombPeahatEntity* this) {
-    if (sub_080044EC(super, 0x2800) == 1) {
+    if (BounceUpdate(super, Q_8_8(40.0)) == BOUNCE_INIT_NEXT) {
         Entity* entity = CreateEnemy(BOBOMB, 1);
         if (entity != NULL) {
             CopyPosition(super, entity);
diff --git a/src/enemy/chuchu.c b/src/enemy/chuchu.c
index c7ca7b948..8e72398dd 100644
--- a/src/enemy/chuchu.c
+++ b/src/enemy/chuchu.c
@@ -715,7 +715,7 @@ void sub_0801FB68(ChuchuEntity* this) {
 }
 
 u32 sub_0801FBD0(ChuchuEntity* this) {
-    if (GetTileUnderEntity(super) == 0x10) {
+    if (GetActTile(super) == 0x10) {
         return 1;
     } else {
         return 0;
diff --git a/src/enemy/cloudPiranha.c b/src/enemy/cloudPiranha.c
index 7f8f85c4e..dbe78f284 100644
--- a/src/enemy/cloudPiranha.c
+++ b/src/enemy/cloudPiranha.c
@@ -175,7 +175,7 @@ void CloudPiranha_Action3(CloudPiranhaEntity* this) {
 void CloudPiranha_Action4(CloudPiranhaEntity* this) {
     Entity* effect;
     sub_080387F0(this);
-    if (sub_080044EC(super, 0x1800) == 1) {
+    if (BounceUpdate(super, Q_8_8(24.0)) == BOUNCE_INIT_NEXT) {
         super->action = 1;
         super->hitType = 0x72;
         super->timer = 1;
diff --git a/src/enemy/cuccoAggr.c b/src/enemy/cuccoAggr.c
index 03a158eaf..45c7f8635 100644
--- a/src/enemy/cuccoAggr.c
+++ b/src/enemy/cuccoAggr.c
@@ -176,7 +176,7 @@ void sub_08038F44(CuccoAggrEntity* this) {
     super->direction = GetFacingDirection(&gPlayerEntity.base, super);
     sub_080390F8(this);
     ProcessMovement0(super);
-    sub_080044EC(super, 0x1800);
+    BounceUpdate(super, Q_8_8(24.0));
     GetNextFrame(super);
     sub_08039298(this);
     if (--this->unk_78 == 0) {
diff --git a/src/enemy/fallingBoulder.c b/src/enemy/fallingBoulder.c
index e898c1b79..134211003 100644
--- a/src/enemy/fallingBoulder.c
+++ b/src/enemy/fallingBoulder.c
@@ -93,7 +93,7 @@ void sub_0802C334(FallingBoulderEntity* this) {
     GetNextFrame(super);
     this->unk_7e = COORD_TO_TILE(super);
 
-    if (sub_080044EC(super, this->unk_84) == 1) {
+    if (BounceUpdate(super, this->unk_84) == BOUNCE_INIT_NEXT) {
         EnqueueSFX(0x14c);
         COLLISION_ON(super);
         this->unk_7a = 12;
diff --git a/src/enemy/helmasaur.c b/src/enemy/helmasaur.c
index 9f970a08e..e1cb2a518 100644
--- a/src/enemy/helmasaur.c
+++ b/src/enemy/helmasaur.c
@@ -224,7 +224,7 @@ void sub_0802BEBC(HelmasaurEntity* this) {
     super->direction ^= DirectionSouth;
     ProcessMovement2(super);
     super->direction ^= DirectionSouth;
-    if (!sub_080044EC(super, Q_16_16(0.125))) {
+    if (BounceUpdate(super, Q_16_16(0.125)) == BOUNCE_DONE_ALL) {
         sub_0802C1C0(this);
     }
 }
diff --git a/src/enemy/peahat.c b/src/enemy/peahat.c
index fee430285..eeae83f89 100644
--- a/src/enemy/peahat.c
+++ b/src/enemy/peahat.c
@@ -240,7 +240,7 @@ void Peahat_ChargeEnd(PeahatEntity* this) {
 void Peahat_Stunned(PeahatEntity* this) {
     switch (super->animationState) {
         default:
-            if (sub_080044EC(super, 0x1800) == 0) {
+            if (BounceUpdate(super, Q_8_8(24.0)) == BOUNCE_DONE_ALL) {
                 super->action = 6;
                 super->timer = 240;
                 super->subtimer = 10;
diff --git a/src/enemy/rollobite.c b/src/enemy/rollobite.c
index 62f6e2d69..7d297f8dc 100644
--- a/src/enemy/rollobite.c
+++ b/src/enemy/rollobite.c
@@ -187,16 +187,16 @@ void Rollobite_RolledUp(RollobiteEntity* this) {
     if ((super->frame & ANIM_DONE) == 0)
         GetNextFrame(super);
 
-    unk = sub_080044EC(super, 0x2800);
+    unk = BounceUpdate(super, Q_8_8(40.0));
 
-    if (unk == 0) {
+    if (unk == BOUNCE_DONE_ALL) {
         if (--super->timer == 0) {
             super->action = 5;
             InitializeAnimation(super, super->animationState + 12);
         }
         RegisterCarryEntity(super);
     } else {
-        if (unk == 1)
+        if (unk == BOUNCE_INIT_NEXT)
             EnqueueSFX(SFX_PLACE_OBJ);
 
         if (!(super->direction & DIR_NOT_MOVING_CHECK))
diff --git a/src/enemy/rope.c b/src/enemy/rope.c
index e8bcbc415..79fa291bf 100644
--- a/src/enemy/rope.c
+++ b/src/enemy/rope.c
@@ -208,7 +208,7 @@ void sub_08031600(RopeEntity* this) {
 
 u32 sub_0803163C(RopeEntity* this) {
     u32 h;
-    if (GetTileUnderEntity(super) == 0x13) {
+    if (GetActTile(super) == 0x13) {
         h = this->unk_7a / 2;
     } else {
         h = this->unk_7a;
diff --git a/src/enemy/spikedBeetle.c b/src/enemy/spikedBeetle.c
index 92406dda9..3a2823592 100644
--- a/src/enemy/spikedBeetle.c
+++ b/src/enemy/spikedBeetle.c
@@ -152,12 +152,12 @@ void sub_0802B880(Entity* this) {
 
 void sub_0802B8B0(Entity* this) {
     ProcessMovement2(this);
-    switch (sub_080044EC(this, 0x1800)) {
-        case 0:
+    switch (BounceUpdate(this, Q_8_8(24.0))) {
+        case BOUNCE_DONE_ALL:
             this->action = 7;
             this->timer = 150;
             /* fallthrough */
-        case 1:
+        case BOUNCE_INIT_NEXT:
             EnqueueSFX(SFX_12B);
             break;
     }
diff --git a/src/enemy/tektite.c b/src/enemy/tektite.c
index 81573437e..7423bc408 100644
--- a/src/enemy/tektite.c
+++ b/src/enemy/tektite.c
@@ -147,7 +147,7 @@ void sub_0802F300(TektiteEntity* this) {
     temp = super->z.HALF.HI;
     rand = Random() & 0xf;
 
-    if (sub_080044EC(super, this->unk_80) == 1) {
+    if (BounceUpdate(super, this->unk_80) == BOUNCE_INIT_NEXT) {
         super->action = 3;
         super->subAction = 0;
         if (super->type != 0) {
@@ -164,7 +164,7 @@ void sub_0802F300(TektiteEntity* this) {
         return;
     } else if (super->collisions != COL_NONE) {
         sub_0800417E(super, super->collisions);
-    } else if ((GetTileUnderEntity(super) & 0xf0) == 0x50) {
+    } else if ((GetActTile(super) & 0xf0) == 0x50) {
         super->direction = (super->direction + 0x10) & (0x3 | DirectionNorthWest);
     }
 
diff --git a/src/enemy/tektiteGolden.c b/src/enemy/tektiteGolden.c
index d92dfdee4..140658b72 100644
--- a/src/enemy/tektiteGolden.c
+++ b/src/enemy/tektiteGolden.c
@@ -129,7 +129,7 @@ void sub_08038048(TektiteGoldenEntity* this) {
     temp = super->z.HALF.HI;
     rand = Random() & 0xf;
 
-    if (sub_080044EC(super, 0x3000) == 1) {
+    if (BounceUpdate(super, Q_8_8(48.0)) == BOUNCE_INIT_NEXT) {
         super->action = 3;
         super->subAction = 0;
         super->timer = 20;
@@ -137,7 +137,7 @@ void sub_08038048(TektiteGoldenEntity* this) {
         return;
     } else if (super->collisions != COL_NONE) {
         sub_0800417E(super, super->collisions);
-    } else if ((GetTileUnderEntity(super) & 0xf0) == 0x50) {
+    } else if ((GetActTile(super) & 0xf0) == 0x50) {
         super->direction = (super->direction + 0x10) & (0x3 | DirectionNorthWest);
     }
 
diff --git a/src/enemy/vaatiTransfigured.c b/src/enemy/vaatiTransfigured.c
index 265b5a98e..56ca8a39c 100644
--- a/src/enemy/vaatiTransfigured.c
+++ b/src/enemy/vaatiTransfigured.c
@@ -288,7 +288,7 @@ void VaatiTransfiguredType0Action3(VaatiTransfiguredEntity* this) {
 
     switch (this->unk_80) {
         case 0:
-            uVar4 = sub_080044EC(super, 0x2800);
+            uVar4 = BounceUpdate(super, Q_8_8(40.0));
             if (uVar4 != 1)
                 break;
             this->unk_80 = 1;
diff --git a/src/fileselect.c b/src/fileselect.c
index 7e4d9108c..cf275fe1d 100644
--- a/src/fileselect.c
+++ b/src/fileselect.c
@@ -1145,7 +1145,7 @@ void sub_080610B8(void) {
         default:
             uVar6 = 0;
             tmp4 = 0;
-            switch (gInput.unk4) {
+            switch (gInput.menuScrollKeys) {
                 case DPAD_UP:
                     tmp4 = -1;
                     break;
diff --git a/src/manager/enemyInteractionManager.c b/src/manager/enemyInteractionManager.c
index 0c8428d76..cd393b31d 100644
--- a/src/manager/enemyInteractionManager.c
+++ b/src/manager/enemyInteractionManager.c
@@ -66,14 +66,14 @@ void EnemyInteractionManager_Action1(EnemyInteractionManager* this) {
         for (i = 0; i < n; i++) {
             tmp = this->d.enemies[i];
             for (j = i + 1; j < super->timer; j++) {
-                sub_08004484(tmp, this->d.enemies[j]);
+                CalcCollisionStaticEntity(tmp, this->d.enemies[j]);
             }
         }
     } else {
         for (i = 0; i < n; i++) {
             tmp = this->d.enemies[i];
             for (j = i + 1; j < super->timer; j++) {
-                sub_08004484(this->d.enemies[j], tmp);
+                CalcCollisionStaticEntity(this->d.enemies[j], tmp);
             }
         }
     }
diff --git a/src/menu/figurineMenu.c b/src/menu/figurineMenu.c
index f8732c154..f76389fde 100644
--- a/src/menu/figurineMenu.c
+++ b/src/menu/figurineMenu.c
@@ -180,7 +180,7 @@ void FigurineMenu0_ViewFigurineAfterDrawing(void) {
     s32 t;
 
     infoY = gFigurineMenu.unk1f;
-    switch (gInput.unk4) {
+    switch (gInput.menuScrollKeys) {
         case B_BUTTON:
         case START_BUTTON:
             FigurineMenu_ExitMenu();
@@ -219,7 +219,7 @@ void FigurineMenu1_ViewAllFigurines(void) {
 
     infoY = gFigurineMenu.unk1f;
     figurineIndex = gFigurineMenu.figure_idx;
-    switch (gInput.unk4) {
+    switch (gInput.menuScrollKeys) {
         case B_BUTTON:
         case START_BUTTON:
             SetMenuType(3);
diff --git a/src/menu/kinstoneMenu.c b/src/menu/kinstoneMenu.c
index cfc0473ae..446cd71c1 100644
--- a/src/menu/kinstoneMenu.c
+++ b/src/menu/kinstoneMenu.c
@@ -194,7 +194,7 @@ void KinstoneMenu_Type1(void) {
         return;
     }
     tmp3 = menu->unk28;
-    switch (gInput.unk4) {
+    switch (gInput.menuScrollKeys) {
         case DPAD_LEFT:
         case DPAD_UP:
             tmp3--;
diff --git a/src/menu/pauseMenu.c b/src/menu/pauseMenu.c
index 6b1d0cefd..ab90f23bc 100644
--- a/src/menu/pauseMenu.c
+++ b/src/menu/pauseMenu.c
@@ -404,7 +404,7 @@ void PauseMenu_ItemMenu_Update(void) {
                 }
                 break;
             default:
-                switch (gInput.unk4) {
+                switch (gInput.menuScrollKeys) {
                     case DPAD_UP:
                         menuSlot = entry->up;
                         break;
@@ -710,7 +710,7 @@ void sub_080A56A0(void) {
     gMenu.field_0xc = gUnk_08128C00;
     ptr = &gUnk_08128C14[gMenu.field_0x3];
     uVar2 = 0xff;
-    switch (gInput.unk4) {
+    switch (gInput.menuScrollKeys) {
         case DPAD_UP:
             uVar2 = ptr->unk0;
             break;
diff --git a/src/message.c b/src/message.c
index 87d6e4611..08bad90c0 100644
--- a/src/message.c
+++ b/src/message.c
@@ -408,7 +408,7 @@ u16 RunTextCommand(TextRender* this) {
                 gMessage.unk = this->curToken.param;
                 break;
             case 6:
-                ptr = &gMessage.field_0xc;
+                ptr = &gMessage.flags;
                 tmp3 = this->curToken.param;
                 tmp3 &= 0x1f;
                 WriteBit(ptr, tmp3);
diff --git a/src/npc/phonograph.c b/src/npc/phonograph.c
index ca74c8205..f10677d2c 100644
--- a/src/npc/phonograph.c
+++ b/src/npc/phonograph.c
@@ -61,10 +61,10 @@ void sub_0806E964(PhonographEntity* this, ScriptExecutionContext* context) {
         sub_0806EABC(this);
     }
 
-    if (gInput.unk4 & (DPAD_UP | DPAD_DOWN)) {
+    if (gInput.menuScrollKeys & (DPAD_UP | DPAD_DOWN)) {
         s32 val2, val3;
         s32 val = this->unk_68;
-        if (gInput.unk4 & DPAD_UP) {
+        if (gInput.menuScrollKeys & DPAD_UP) {
             val++;
         } else {
             val--;
@@ -147,8 +147,8 @@ void sub_0806E964(PhonographEntity* this, ScriptExecutionContext* context) {
         if (val > val2) {
             val = 1;
         }
-    } else if (gInput.unk4 & (DPAD_UP | DPAD_DOWN)) {
-        if (gInput.unk4 & DPAD_UP) {
+    } else if (gInput.menuScrollKeys & (DPAD_UP | DPAD_DOWN)) {
+        if (gInput.menuScrollKeys & DPAD_UP) {
             val++;
         } else {
             val--;
diff --git a/src/npcUtils.c b/src/npcUtils.c
index 3d0323c3b..6866991cb 100644
--- a/src/npcUtils.c
+++ b/src/npcUtils.c
@@ -321,7 +321,7 @@ void CollideFollowers(void) {
                 continue;
             if ((nextEnt->followerFlag & 1) == 0)
                 continue;
-            sub_08004484(currentEntity, nextEnt);
+            CalcCollisionStaticEntity(currentEntity, nextEnt);
         }
     }
 }
diff --git a/src/object/bird.c b/src/object/bird.c
index bbd382ff1..3f1bca183 100644
--- a/src/object/bird.c
+++ b/src/object/bird.c
@@ -131,7 +131,7 @@ void Bird_Type1_Action1_Subaction0(BirdEntity* this) {
 void Bird_Type1_Action1_Subaction1(BirdEntity* this) {
     Entity* fx;
 
-    if (sub_080044EC(super, 0x1800) < 2) {
+    if (BounceUpdate(super, Q_8_8(24.0)) < BOUNCE_AIRBORNE) {
         super->type = 2;
         super->action = 1;
         super->z.WORD = 0;
diff --git a/src/object/book.c b/src/object/book.c
index 6a5165008..a031da2d6 100644
--- a/src/object/book.c
+++ b/src/object/book.c
@@ -138,7 +138,7 @@ void Book_Action2(BookEntity* this) {
 void Book_Action3(BookEntity* this) {
     Entity* fx;
 
-    if (sub_080044EC(super, 0x2800) != 1) {
+    if (BounceUpdate(super, Q_8_8(40.0)) != BOUNCE_INIT_NEXT) {
         return;
     }
 
diff --git a/src/object/crenelBeanSprout.c b/src/object/crenelBeanSprout.c
index 384722b28..3621f3007 100644
--- a/src/object/crenelBeanSprout.c
+++ b/src/object/crenelBeanSprout.c
@@ -174,7 +174,7 @@ void CrenelBeanSprout_Action1(CrenelBeanSproutEntity* this) {
             gUnk_0200AF00.rActionPlayerState = R_ACTION_NONE;
         }
         PositionRelative(&gPlayerEntity.base, super, 0, 0x10000);
-        if (GetTileUnderEntity(super) == 0x19) {
+        if (GetActTile(super) == 0x19) {
             RestorePrevTileEntity(0xdc, super->collisionLayer);
             sub_08096A78(this);
         }
diff --git a/src/object/cutsceneMiscObject.c b/src/object/cutsceneMiscObject.c
index 68f86a771..c2320d91d 100644
--- a/src/object/cutsceneMiscObject.c
+++ b/src/object/cutsceneMiscObject.c
@@ -331,7 +331,7 @@ void CutsceneMiscObject_Type5(CutsceneMiscObjectEntity* this) {
                 super->zVelocity = 0;
                 SetEntityPriority(super, PRIO_PLAYER_EVENT);
                 InitializeAnimation(super, 0);
-                if (GetTileUnderEntity(super) == 13) {
+                if (GetActTile(super) == 13) {
                     super->action = 3;
                 }
                 break;
@@ -550,7 +550,7 @@ void CutsceneMiscObject_Type11(CutsceneMiscObjectEntity* this) {
         InitAnimationForceUpdate(super, 0);
     }
     if (super->subAction != 0) {
-        if ((u32)sub_080044EC(super, 0x1800) <= 1) {
+        if ((u32)BounceUpdate(super, Q_8_8(24.0)) <= BOUNCE_INIT_NEXT) {
             super->subAction = 0;
             SetAffineInfo(super, 0x100, 0x100, 0xC000);
         } else {
diff --git a/src/object/figurineDevice.c b/src/object/figurineDevice.c
index 8572dc381..d975556ad 100644
--- a/src/object/figurineDevice.c
+++ b/src/object/figurineDevice.c
@@ -259,9 +259,9 @@ void FigurineDevice_Action4(FigurineDeviceEntity* this) {
                 tmp = 1;
             }
 #ifdef JP
-            switch (gInput.unk4) {
+            switch (gInput.menuScrollKeys) {
 #else
-            switch (gInput.unk4 & 0xfffffeff) {
+            switch (gInput.menuScrollKeys & ~R_BUTTON) {
 #endif
                 case DPAD_UP:
                     FigurineDevice_ChangeShellAmount(this, tmp);
@@ -274,7 +274,7 @@ void FigurineDevice_Action4(FigurineDeviceEntity* this) {
                 sub_080882A8(this);
             }
 #else
-            switch (gInput.unk4) {
+            switch (gInput.menuScrollKeys) {
                 case DPAD_UP:
                     FigurineDevice_ChangeShellAmount(this, 1);
                     break;
diff --git a/src/object/graveyardKey.c b/src/object/graveyardKey.c
index 699bb95ac..577d4b094 100644
--- a/src/object/graveyardKey.c
+++ b/src/object/graveyardKey.c
@@ -124,7 +124,7 @@ void GraveyardKey_Action2(Entity* this, const struct_gUnk_08123FB0* param_2) {
     u8 type;
 
     LinearMoveUpdate(this);
-    if (sub_080044EC(this, param_2->unk14) < 2) {
+    if (BounceUpdate(this, param_2->unk14) < BOUNCE_AIRBORNE) {
         if (this->timer) {
             this->timer--;
             this->zVelocity = param_2->unk14 << 3;
diff --git a/src/object/itemOnGround.c b/src/object/itemOnGround.c
index 3a755c874..dc9d09750 100644
--- a/src/object/itemOnGround.c
+++ b/src/object/itemOnGround.c
@@ -436,7 +436,7 @@ u32 sub_080814C0(ItemOnGroundEntity* this) {
 
 void sub_08081500(ItemOnGroundEntity* this) {
     if (this->unk_68 == 0) {
-        u32 var0 = sub_080044EC(super, 0x2800);
+        u32 var0 = BounceUpdate(super, Q_8_8(40.0));
         if (var0 == 0) {
             this->unk_68 = 1;
         } else {
diff --git a/src/object/keyStealingTakkuri.c b/src/object/keyStealingTakkuri.c
index c5a8bdf32..2f67e69f7 100644
--- a/src/object/keyStealingTakkuri.c
+++ b/src/object/keyStealingTakkuri.c
@@ -163,7 +163,7 @@ void KeyStealingTakkuri_Type5_Init(KeyStealingTakkuriEntity* this) {
 
 void KeyStealingTakkuri_Type5_Action1(KeyStealingTakkuriEntity* this) {
     LinearMoveUpdate(super);
-    if (sub_080044EC(super, 0x2000) < 2) {
+    if (BounceUpdate(super, Q_8_8(32.0)) < BOUNCE_AIRBORNE) {
         if (super->timer != 0) {
             super->timer--;
             super->zVelocity = Q_16_16(1.0);
diff --git a/src/object/lilypadLarge.c b/src/object/lilypadLarge.c
index 7a09ee3ac..9bc153991 100644
--- a/src/object/lilypadLarge.c
+++ b/src/object/lilypadLarge.c
@@ -386,7 +386,7 @@ void sub_08085B40(LilypadLargeEntity* this) {
         }
     } else {
         ResetCollisionLayer(super);
-        if (GetTileUnderEntity(super) == 0xd) {
+        if (GetActTile(super) == 0xd) {
             ResetCollisionLayer(&gPlayerEntity.base);
             LilypadLarge_Action4(this);
             super->direction = GetFacingDirection(&gPlayerEntity.base, super);
@@ -408,7 +408,7 @@ void sub_08085B40(LilypadLargeEntity* this) {
             super->timer |= 0x80;
             this->unk_70 = 0;
             this->unk_6c = 0;
-            if (GetTileUnderEntity(super) == 0xd) {
+            if (GetActTile(super) == 0xd) {
                 super->action = 4;
             }
         }
diff --git a/src/object/mask.c b/src/object/mask.c
index 5fd949ef6..46cfdb9e1 100644
--- a/src/object/mask.c
+++ b/src/object/mask.c
@@ -129,7 +129,7 @@ void Mask_Action2(MaskEntity* this) {
 
         CreateRandomItemDrop(super, 3);
     } else {
-        sub_080044EC(super, this->unk_78);
+        BounceUpdate(super, this->unk_78);
 
         if (super->z.HALF.HI == 0) {
             super->timer++;
diff --git a/src/object/minecart.c b/src/object/minecart.c
index 67d52465c..ee523716a 100644
--- a/src/object/minecart.c
+++ b/src/object/minecart.c
@@ -199,7 +199,7 @@ void Minecart_Action3(MinecartEntity* this) {
                     case 0x6d:
                     case 0x6e:
                     case 0x6f:
-                        if (uVar3 == GetTileUnderEntity(super)) {
+                        if (uVar3 == GetActTile(super)) {
                             Minecart_Action4(this);
                             gPlayerEntity.base.animationState = super->animationState << 1;
                             return;
@@ -221,7 +221,7 @@ void Minecart_Action3(MinecartEntity* this) {
 void Minecart_Action4(MinecartEntity* this) {
     sub_08004168(super);
     CopyPosition(super, &gPlayerEntity.base);
-    switch (GetTileUnderEntity(super)) {
+    switch (GetActTile(super)) {
         case 0x67:
             if (super->direction == DirectionWest) {
                 super->direction = DirectionNorth;
diff --git a/src/object/objectA2.c b/src/object/objectA2.c
index 5aca031b3..0617ce3e5 100644
--- a/src/object/objectA2.c
+++ b/src/object/objectA2.c
@@ -51,7 +51,7 @@ void ObjectA2_Action1(Entity* this) {
     LinearMoveUpdate(this);
 #ifndef EU
     if (gSaveHeader->language < 2) {
-        if (sub_080044EC(this, 0x2000) < 2) {
+        if (BounceUpdate(this, Q_8_8(32.0)) < BOUNCE_AIRBORNE) {
             this->z.WORD = 0;
             this->action = 2;
             InitializeAnimation(this, 1);
@@ -61,15 +61,15 @@ void ObjectA2_Action1(Entity* this) {
         }
     } else {
 #endif
-        switch (sub_080044EC(this, 0x2000)) {
+        switch (BounceUpdate(this, Q_8_8(32.0))) {
             default:
                 this->timer++;
                 break;
-            case 0:
+            case BOUNCE_DONE_ALL:
                 this->action = 2;
                 InitializeAnimation(this, 1);
                 // fall through
-            case 1:
+            case BOUNCE_INIT_NEXT:
                 this->timer = 0;
                 sub_0809F448(this);
                 SoundReq(SFX_186);
diff --git a/src/object/objectOnPillar.c b/src/object/objectOnPillar.c
index 7815dd744..98501c8e9 100644
--- a/src/object/objectOnPillar.c
+++ b/src/object/objectOnPillar.c
@@ -208,7 +208,7 @@ void sub_080970F4(ObjectOnPillarEntity* this) {
 bool32 sub_08097144(ObjectOnPillarEntity* this) {
     LinearMoveUpdate(super);
     sub_0800445C(super);
-    if (GetTileUnderEntity(super) == 0x19) {
+    if (GetActTile(super) == 0x19) {
         super->spriteOffsetY = 2;
     }
     if ((--this->unk_76 == 0) && sub_08097194(this) == FALSE) {
diff --git a/src/object/playerClone.c b/src/object/playerClone.c
index 36c4dd8b2..a5e8bed4d 100644
--- a/src/object/playerClone.c
+++ b/src/object/playerClone.c
@@ -109,7 +109,7 @@ void PlayerClone_Action2(PlayerCloneEntity* this) {
         if (gPlayerEntity.base.iframes >= 1) {
             gPlayerState.chargeState.action = 1;
         } else {
-            GetTileUnderEntity(super);
+            GetActTile(super);
             sub_08084B1C(this);
             super->x.HALF.HI = gPlayerEntity.base.x.HALF.HI + this->unk78;
             super->y.HALF.HI = gPlayerEntity.base.y.HALF.HI + this->unk7a;
diff --git a/src/object/pot.c b/src/object/pot.c
index 388b35ccc..0575dc87b 100644
--- a/src/object/pot.c
+++ b/src/object/pot.c
@@ -25,7 +25,7 @@ typedef struct {
 } PotEntity;
 
 void Pot_Action5(PotEntity*);
-static void sub_08082850(PotEntity*, Entity*);
+static void BreakPot(PotEntity*, Entity*);
 void sub_08082608(PotEntity* this);
 void Pot_Init(PotEntity* this);
 void Pot_Action1(PotEntity* this);
@@ -128,13 +128,13 @@ void Pot_Action1(PotEntity* this) {
                         DeleteThisEntity();
                         break;
                     default:
-                        if (GetTileUnderEntity(super) == 13) {
+                        if (GetActTile(super) == 13) {
                             CreateFx(super, FX_FALL_DOWN, 0);
                         } else if (tileType == 0x4005) {
                             gPlayerState.lastSwordMove = SWORD_MOVE_BREAK_POT;
                             SetTile((u16)this->unk_70, COORD_TO_TILE(super), super->collisionLayer);
                         }
-                        sub_08082850(this, NULL);
+                        BreakPot(this, NULL);
                         break;
                 }
             } else {
@@ -181,7 +181,7 @@ void sub_0808259C(PotEntity* this) {
             CreateFx(super, FX_LAVA_SPLASH, 0);
             break;
         default:
-            sub_08082850(this, &gPlayerEntity.base);
+            BreakPot(this, &gPlayerEntity.base);
             return;
     }
 
@@ -227,7 +227,7 @@ void Pot_Action4(PotEntity* this) {
     switch (tileType) {
         case 0x71:
         case 0x72:
-            sub_08082850(this, NULL);
+            BreakPot(this, NULL);
             break;
         default:
             SetTile(0x4000, COORD_TO_TILE(super), super->collisionLayer);
@@ -268,7 +268,7 @@ void sub_08082778(PotEntity* this) {
     }
 
     if ((gPlayerState.field_0x1c & 0xF) != 0x1 || (super->contactFlags & 0x7F) != 0x13) {
-        sub_08082850(this, NULL);
+        BreakPot(this, NULL);
     } else {
         sub_0806F3E4(super);
     }
@@ -276,7 +276,7 @@ void sub_08082778(PotEntity* this) {
 
 void sub_080827F8(PotEntity* this) {
     if (gPlayerState.field_0x1c == 0) {
-        sub_08082850(this, NULL);
+        BreakPot(this, NULL);
     }
 }
 
@@ -284,7 +284,7 @@ void nullsub_512(PotEntity* this) {
 }
 
 void sub_08082818(PotEntity* this) {
-    sub_08082850(this, NULL);
+    BreakPot(this, NULL);
 }
 
 void Pot_Action5(PotEntity* this) {
@@ -293,11 +293,11 @@ void Pot_Action5(PotEntity* this) {
     }
 
     if (GravityUpdate(super, Q_8_8(32.0)) == 0) {
-        sub_08082850(this, NULL);
+        BreakPot(this, NULL);
     }
 }
 
-static void sub_08082850(PotEntity* this, Entity* parent) {
+static void BreakPot(PotEntity* this, Entity* parent) {
     u32 parameter = sub_0808288C(super, super->type, this->unk_7d, super->type2);
     Entity* fxEntity = CreateFx(super, FX_POT_SHATTER, parameter);
     if (fxEntity) {
diff --git a/src/object/rupee.c b/src/object/rupee.c
index b729c0710..49ff78358 100644
--- a/src/object/rupee.c
+++ b/src/object/rupee.c
@@ -45,7 +45,7 @@ void Rupee_Action_1(Entity* this) {
     if (this->child->next == NULL) {
         this->action = 2;
     } else {
-        if (sub_080044EC(this, 10240) == 0) {
+        if (BounceUpdate(this, Q_8_8(40.0)) == BOUNCE_DONE_ALL) {
             this->action = 2;
         }
         ProcessMovement0(this);
diff --git a/src/player.c b/src/player.c
index e9e84ce57..1c41684c3 100644
--- a/src/player.c
+++ b/src/player.c
@@ -1976,7 +1976,7 @@ static void PlayerRoomTransition(PlayerEntity* this) {
 static void sub_080724DC(PlayerEntity* this) {
     super->knockbackDuration = 0;
     DeleteClones();
-    if (GetTileUnderEntity(super) != 0x29) {
+    if (GetActTile(super) != 0x29) {
         if ((gPlayerState.remainingDiveTime == 0) && (gPlayerState.swim_state != 0)) {
             PlayerUpdateSwimming(super);
         }
@@ -2620,7 +2620,7 @@ static void PlayerUseStairs(PlayerEntity* this) {
 
 static void sub_080732D0(PlayerEntity* this) {
     UpdateAnimationSingleFrame(super);
-    if (GetTileUnderEntity(super) != 40) {
+    if (GetActTile(super) != 40) {
         super->direction = DirectionNorth;
         LinearMoveUpdate(super);
     } else {
@@ -4107,7 +4107,7 @@ void sub_0807529C(PlayerEntity* this) {
 void sub_080752AC(PlayerEntity* this, ScriptExecutionContext* ctx) {
     LinearMoveUpdate(super);
     if (!ctx->unk_18) {
-        if (GetTileUnderEntity(super) != 41) {
+        if (GetActTile(super) != 41) {
             ctx->unk_18 = 1;
             ctx->unk_19 = 6;
         }
diff --git a/src/playerItem/playerItemHeldObject.c b/src/playerItem/playerItemHeldObject.c
index e7fb4643f..7d1eebd67 100644
--- a/src/playerItem/playerItemHeldObject.c
+++ b/src/playerItem/playerItemHeldObject.c
@@ -135,7 +135,7 @@ void PlayerItemHeldObject_SubAction2(PlayerItemHeldObjectEntity* this) {
             (child->base).x = super->x;
             (child->base).y = super->y;
             (child->base).z = super->z;
-            tile = GetTileUnderEntity(super);
+            tile = GetActTile(super);
             switch (tile) {
                 case 0xd:
                 case 0x10:
diff --git a/src/playerItem/playerItemPacciCaneProjectile.c b/src/playerItem/playerItemPacciCaneProjectile.c
index ef2bee36a..a5725d179 100644
--- a/src/playerItem/playerItemPacciCaneProjectile.c
+++ b/src/playerItem/playerItemPacciCaneProjectile.c
@@ -127,7 +127,7 @@ void PlayerItemPacciCaneProjectile_Action1(PlayerItemPacciCaneProjectileEntity*
         }
         if (sub_080B1BA4(COORD_TO_TILE(super), gPlayerEntity.base.collisionLayer, 0x80) == 0) {
             if (sub_080040D8(super, &gUnk_08003E44, super->x.HALF.HI, super->y.HALF.HI) == 0) {
-                if (GetTileUnderEntity(super) == 0x19) {
+                if (GetActTile(super) == 0x19) {
                     super->action = 4;
                     COLLISION_OFF(super);
                     super->x.HALF.HI = (super->x.HALF.HI & 0xfff0) | 8;
diff --git a/src/playerUtils.c b/src/playerUtils.c
index c64835df3..833d8acfe 100644
--- a/src/playerUtils.c
+++ b/src/playerUtils.c
@@ -2350,7 +2350,7 @@ bool32 sub_08079D48(void) {
         return TRUE;
     } else {
         if (!PlayerCheckNEastTile()) {
-            if (!sub_08007DD6((u16)GetTileUnderEntity(&gPlayerEntity.base), gUnk_0811C268)) {
+            if (!sub_08007DD6((u16)GetActTile(&gPlayerEntity.base), gUnk_0811C268)) {
                 return TRUE;
             }
         }
diff --git a/src/projectile/boneProjectile.c b/src/projectile/boneProjectile.c
index 711070a70..164ec13bf 100644
--- a/src/projectile/boneProjectile.c
+++ b/src/projectile/boneProjectile.c
@@ -70,7 +70,7 @@ void BoneProjectile_Action3(Entity* this) {
     this->spriteSettings.draw ^= 1;
     LinearMoveUpdate(this);
     GetNextFrame(this);
-    if (sub_080044EC(this, 0x1800) == 0) {
+    if (BounceUpdate(this, Q_8_8(24.0)) == BOUNCE_DONE_ALL) {
         DeleteEntity(this);
     }
 }
diff --git a/src/projectile/dekuSeedProjectile.c b/src/projectile/dekuSeedProjectile.c
index bc76acc4b..132bf708d 100644
--- a/src/projectile/dekuSeedProjectile.c
+++ b/src/projectile/dekuSeedProjectile.c
@@ -115,11 +115,11 @@ void DekuSeedProjectile_Action3(Entity* this) {
 void DekuSeedProjectile_Action4(Entity* this) {
     GetNextFrame(this);
     ProcessMovement3(this);
-    switch (sub_080044EC(this, 0x2800)) {
-        case 0:
+    switch (BounceUpdate(this, Q_8_8(40.0))) {
+        case BOUNCE_DONE_ALL:
             DeleteThisEntity();
             return;
-        case 1:
+        case BOUNCE_INIT_NEXT:
             COLLISION_OFF(this);
             this->speed = 0x120;
 
diff --git a/src/projectile/dirtBallProjectile.c b/src/projectile/dirtBallProjectile.c
index 5a56b0d37..12f9beaee 100644
--- a/src/projectile/dirtBallProjectile.c
+++ b/src/projectile/dirtBallProjectile.c
@@ -132,7 +132,7 @@ void DirtBallProjectile_Action2(Entity* this) {
         FreeCarryEntity(entity);
         CopyPosition(this, entity);
     }
-    if (sub_080044EC(this, 0x2800) != 1) {
+    if (BounceUpdate(this, Q_8_8(40.0)) != BOUNCE_INIT_NEXT) {
         return;
     }
 
diff --git a/src/projectile/rockProjectile.c b/src/projectile/rockProjectile.c
index d5d4578ed..70957e97f 100644
--- a/src/projectile/rockProjectile.c
+++ b/src/projectile/rockProjectile.c
@@ -66,11 +66,11 @@ void RockProjectile_Action2(Entity* this) {
 void RockProjectile_Action3(Entity* this) {
     GetNextFrame(this);
     ProcessMovement3(this);
-    switch (sub_080044EC(this, 0x2800)) {
-        case 0:
+    switch (BounceUpdate(this, Q_8_8(40.0))) {
+        case BOUNCE_DONE_ALL:
             DeleteEntity(this);
             return;
-        case 1:
+        case BOUNCE_INIT_NEXT:
             COLLISION_OFF(this);
             this->speed = 0x120;
             if (sub_0800442E(this) != 0) {