diff --git a/asm/mask.s b/asm/mask.s
new file mode 100644
index 00000000..2b2977dc
--- /dev/null
+++ b/asm/mask.s
@@ -0,0 +1,255 @@
+	.include "asm/macros.inc"
+
+	.include "constants/constants.inc"
+
+	.syntax unified
+
+	.text
+
+
+	thumb_func_start Mask
+Mask: @ 0x0809298C
+	push {lr}
+	ldr r2, _080929A0 @ =gUnk_081227A4
+	ldrb r1, [r0, #0xc]
+	lsls r1, r1, #2
+	adds r1, r1, r2
+	ldr r1, [r1]
+	bl _call_via_r1
+	pop {pc}
+	.align 2, 0
+_080929A0: .4byte gUnk_081227A4
+
+	thumb_func_start sub_080929A4
+sub_080929A4: @ 0x080929A4
+	push {r4, r5, r6, lr}
+	adds r5, r0, #0
+	ldrb r1, [r5, #0xb]
+	movs r6, #0xc0
+	adds r0, r6, #0
+	ands r0, r1
+	cmp r0, #0
+	beq _08092A08
+	adds r4, r5, #0
+	adds r4, #0x86
+	ldrh r0, [r4]
+	bl CheckFlags
+	cmp r0, #0
+	beq _08092A08
+	ldrb r0, [r5, #0xb]
+	adds r1, r6, #0
+	ands r1, r0
+	cmp r1, #0x40
+	beq _080929D2
+	cmp r1, #0x80
+	beq _08092A04
+	b _08092A08
+_080929D2:
+	ldr r0, _080929F4 @ =gUnk_030010A0
+	ldrh r1, [r0, #0xa]
+	movs r0, #0xc1
+	lsls r0, r0, #1
+	cmp r1, r0
+	beq _080929EE
+	cmp r1, r0
+	blt _080929FC
+	ldr r0, _080929F8 @ =0x0000044F
+	cmp r1, r0
+	bgt _080929FC
+	subs r0, #2
+	cmp r1, r0
+	blt _080929FC
+_080929EE:
+	bl DeleteThisEntity
+	b _08092A08
+	.align 2, 0
+_080929F4: .4byte gUnk_030010A0
+_080929F8: .4byte 0x0000044F
+_080929FC:
+	ldrh r0, [r4]
+	bl ClearFlag
+	b _08092A08
+_08092A04:
+	bl DeleteThisEntity
+_08092A08:
+	movs r0, #1
+	strb r0, [r5, #0xc]
+	movs r0, #0xc0
+	lsls r0, r0, #9
+	str r0, [r5, #0x20]
+	bl Random
+	movs r1, #7
+	ands r0, r1
+	lsls r0, r0, #0xa
+	movs r2, #0x80
+	lsls r2, r2, #6
+	adds r1, r2, #0
+	adds r2, r5, #0
+	adds r2, #0x78
+	movs r3, #0
+	orrs r0, r1
+	strh r0, [r2]
+	ldrb r0, [r5, #0xe]
+	lsrs r0, r0, #1
+	strb r0, [r5, #0xf]
+	strb r3, [r5, #0xe]
+	ldrb r1, [r5, #0xb]
+	movs r0, #0x3f
+	ands r0, r1
+	strb r0, [r5, #0x1e]
+	movs r4, #0x2e
+	ldrsh r1, [r5, r4]
+	ldr r2, _08092A8C @ =gRoomControls
+	ldrh r0, [r2, #6]
+	subs r1, r1, r0
+	asrs r1, r1, #4
+	movs r3, #0x3f
+	ands r1, r3
+	movs r4, #0x32
+	ldrsh r0, [r5, r4]
+	ldrh r2, [r2, #8]
+	subs r0, r0, r2
+	asrs r0, r0, #4
+	ands r0, r3
+	lsls r0, r0, #6
+	orrs r1, r0
+	adds r4, r5, #0
+	adds r4, #0x7e
+	strh r1, [r4]
+	ldrh r0, [r4]
+	movs r1, #1
+	bl sub_080001DA
+	adds r1, r5, #0
+	adds r1, #0x7c
+	strh r0, [r1]
+	ldrh r0, [r4]
+	movs r1, #1
+	bl sub_080002E0
+	adds r1, r5, #0
+	adds r1, #0x7a
+	strh r0, [r1]
+	ldr r0, _08092A90 @ =0x00004022
+	ldrh r1, [r4]
+	movs r2, #1
+	bl SetTile
+	pop {r4, r5, r6, pc}
+	.align 2, 0
+_08092A8C: .4byte gRoomControls
+_08092A90: .4byte 0x00004022
+
+	thumb_func_start sub_08092A94
+sub_08092A94: @ 0x08092A94
+	push {r4, r5, lr}
+	adds r4, r0, #0
+	ldr r2, _08092B08 @ =gLinkEntity
+	ldrb r0, [r2, #0xc]
+	cmp r0, #6
+	bne _08092B04
+	ldrb r0, [r2, #0x14]
+	cmp r0, #0
+	bne _08092B04
+	movs r1, #0x32
+	ldrsh r0, [r4, r1]
+	adds r0, #0x28
+	movs r3, #0x32
+	ldrsh r1, [r2, r3]
+	cmp r0, r1
+	blt _08092B04
+	movs r0, #0x2e
+	ldrsh r1, [r4, r0]
+	movs r3, #0x2e
+	ldrsh r0, [r2, r3]
+	subs r1, r1, r0
+	ldrb r0, [r4, #0xf]
+	cmp r1, r0
+	bge _08092B04
+	cmn r1, r0
+	ble _08092B04
+	adds r0, r4, #0
+	adds r0, #0x7c
+	ldrh r0, [r0]
+	adds r5, r4, #0
+	adds r5, #0x7e
+	ldrh r1, [r5]
+	movs r2, #1
+	bl SetTile
+	adds r0, r4, #0
+	adds r0, #0x7a
+	ldrh r0, [r0]
+	ldrh r1, [r5]
+	movs r2, #1
+	bl sub_08000148
+	movs r0, #2
+	strb r0, [r4, #0xc]
+	ldrh r0, [r4, #0x36]
+	subs r0, #0x20
+	strh r0, [r4, #0x36]
+	ldrh r0, [r4, #0x32]
+	adds r0, #0x20
+	strh r0, [r4, #0x32]
+	ldrb r1, [r4, #0x19]
+	movs r0, #0x3f
+	ands r0, r1
+	movs r1, #0x80
+	orrs r0, r1
+	strb r0, [r4, #0x19]
+_08092B04:
+	pop {r4, r5, pc}
+	.align 2, 0
+_08092B08: .4byte gLinkEntity
+
+	thumb_func_start sub_08092B0C
+sub_08092B0C: @ 0x08092B0C
+	push {r4, lr}
+	adds r4, r0, #0
+	ldrb r0, [r4, #0xe]
+	cmp r0, #1
+	bne _08092B50
+	movs r0, #0
+	movs r1, #3
+	strb r1, [r4, #0xc]
+	strb r0, [r4, #0xe]
+	ldrb r0, [r4, #0xb]
+	movs r1, #0xc0
+	ands r1, r0
+	cmp r1, #0x40
+	beq _08092B32
+	cmp r1, #0x80
+	bne _08092B3C
+	movs r0, #0x72
+	bl sub_08004488
+_08092B32:
+	adds r0, r4, #0
+	adds r0, #0x86
+	ldrh r0, [r0]
+	bl SetFlag
+_08092B3C:
+	adds r0, r4, #0
+	movs r1, #5
+	movs r2, #0
+	bl CreateFx
+	adds r0, r4, #0
+	movs r1, #3
+	bl sub_0805457C
+	b _08092B6A
+_08092B50:
+	adds r0, r4, #0
+	adds r0, #0x78
+	ldrh r1, [r0]
+	adds r0, r4, #0
+	bl sub_080044EC
+	movs r1, #0x36
+	ldrsh r0, [r4, r1]
+	cmp r0, #0
+	bne _08092B6A
+	ldrb r0, [r4, #0xe]
+	adds r0, #1
+	strb r0, [r4, #0xe]
+_08092B6A:
+	pop {r4, pc}
+
+	thumb_func_start sub_08092B6C
+sub_08092B6C: @ 0x08092B6C
+	push {lr}
+	bl DeleteThisEntity
+	pop {pc}
diff --git a/data/data_902.s b/data/data_902.s
index f72f7efa..a1062359 100644
--- a/data/data_902.s
+++ b/data/data_902.s
@@ -1360,7 +1360,7 @@ gUnk_08122794:: @ 08122794
 gUnk_0812279C:: @ 0812279C
 	.incbin "baserom.gba", 0x12279C, 0x0000008
 
-MaskActionFuncs:: @ 081227A4
+gUnk_081227A4:: @ 081227A4
 	.incbin "baserom.gba", 0x1227A4, 0x0000010
 
 gUnk_081227B4:: @ 081227B4
diff --git a/include/entity.h b/include/entity.h
index 897ca064..e3f86c82 100644
--- a/include/entity.h
+++ b/include/entity.h
@@ -136,7 +136,7 @@ typedef struct Entity {
     u32* heldObjectPtr;
     u16 field_0x78;
     u16 itemCooldown;
-    union SplitWord field_0x7c;
+    u32 field_0x7c;
     u16 field_0x80;
     u16 field_0x82;
     union SplitHWord cutsceneBeh;
diff --git a/linker.ld b/linker.ld
index 4d0a0bf0..71862820 100644
--- a/linker.ld
+++ b/linker.ld
@@ -686,7 +686,7 @@ SECTIONS {
 		asm/lavaPlatform.o(.text);
 		asm/object5A.o(.text);
 		asm/object5B.o(.text);
-		src/mask.o(.text);
+		asm/mask.o(.text);
 		asm/houseDoorInterior.o(.text);
 		asm/whirlwind.o(.text);
 		asm/objectBlockingStairs.o(.text);
diff --git a/src/bladeBrothers.c b/src/bladeBrothers.c
index 69a981f0..fedaef0f 100644
--- a/src/bladeBrothers.c
+++ b/src/bladeBrothers.c
@@ -411,4 +411,4 @@ void BladeBrothers_Fusion(Entity* this) {
         this->frames.all &= 0xfe;
         sub_08068BEC(this, 0);
     }
-}
+}
\ No newline at end of file
diff --git a/src/bombPeahat.c b/src/bombPeahat.c
index b5dda939..efd14570 100644
--- a/src/bombPeahat.c
+++ b/src/bombPeahat.c
@@ -84,4 +84,4 @@ void nullsub_143(Entity* this){}
 void sub_0802A91C(Entity *this)
 {
   this->currentHealth = 0;
-}
+}
\ No newline at end of file
diff --git a/src/flags.c b/src/flags.c
index 5cce7c9e..64351e6e 100644
--- a/src/flags.c
+++ b/src/flags.c
@@ -130,4 +130,4 @@ void ClearGlobalFlag(u32 flag) {
 
 void ClearRoomFlag(u32 flag) {
     ClearBit(&gRoomFlags, flag);
-}
+}
\ No newline at end of file
diff --git a/src/greatFairy.c b/src/greatFairy.c
index 02b5268b..28e9de33 100644
--- a/src/greatFairy.c
+++ b/src/greatFairy.c
@@ -579,4 +579,4 @@ void (*const GreatFairy_Form2Behaviors[])(Entity*) = {
     sub_0808727C
 };
 
-//clang-format on
+//clang-format on
\ No newline at end of file
diff --git a/src/item.c b/src/item.c
index 49afb9e6..e89a3948 100644
--- a/src/item.c
+++ b/src/item.c
@@ -35,4 +35,4 @@ void (*const gItemFunctions[])(ItemBehavior*, u32) = {
     JarEmpty,
     JarEmpty,
     JarEmpty,
-};
+};
\ No newline at end of file
diff --git a/src/keese.c b/src/keese.c
index b9914c2f..22aee9d9 100644
--- a/src/keese.c
+++ b/src/keese.c
@@ -131,4 +131,4 @@ void sub_08021EF0(Entity *this)
   this->field_0x78 = gUnk_080CB6D6[Random() & 0xf];
   this->itemCooldown = 0x3c;
   InitializeAnimation(this, 0);
-}
+}
\ No newline at end of file
diff --git a/src/mask.c b/src/mask.c
deleted file mode 100644
index d33f3481..00000000
--- a/src/mask.c
+++ /dev/null
@@ -1,142 +0,0 @@
-#include "global.h"
-#include "entity.h"
-#include "room.h"
-#include "random.h"
-
-extern Entity gLinkEntity;
-extern u16 gUnk_030010A0[];
-
-extern void (*MaskActionFuncs[])(Entity *);
-
-extern void DeleteThisEntity();
-
-extern bool32 CheckFlags(u16);
-extern void SetFlag(u16);
-extern void ClearFlag(u16);
-
-extern void SetTile(u32, u16, u32);
-
-extern void CreateFx(Entity *, u16, u16);
-
-extern void sub_08000148(u16, u16, u32);
-extern s16 sub_080001DA(u16, u32);
-extern u16 sub_080002E0(u16, u32);
-
-extern void sub_08004488(u32);
-extern void sub_080044EC(Entity *, u16);
-extern void sub_0805457C(Entity *, s32);
-
-
-void Mask(Entity *this) {
-    MaskActionFuncs[this->action](this);
-}
-
-void sub_080929A4(Entity *this) {
-    if (this->entityType.parameter & 0xC0) {
-        if (CheckFlags(this->field_0x86)) {
-            s32 field_0x0a;
-
-            switch (this->entityType.parameter & 0xC0) {
-                case 0x40:
-                    field_0x0a = gUnk_030010A0[0x5];
-                    
-                    switch (field_0x0a) {
-                        case 0x44D ... 0x44F:
-                        case 0x182:
-                            DeleteThisEntity();
-                            goto switchEnd;
-                    }
-
-                    ClearFlag(this->field_0x86);
-                    break;
-                case 0x80:
-                    DeleteThisEntity();
-                    break;
-            }
-            switchEnd:
-        }
-    }
-
-    this->action = 1;
-    this->field_0x20 = 0x18000;
-
-    this->field_0x78 = ((Random() & 7) << 10) | 0x2000;
-    
-    this->field_0xf = this->actionDelay >> 1;
-    this->actionDelay = 0;
-
-    this->frameIndex = this->entityType.parameter & 0x3f;
-
-    this->field_0x7c.HALF.HI = COORD_TO_TILE(this);
-    this->field_0x7c.HALF.LO = sub_080001DA(this->field_0x7c.HALF.HI, 1);
-
-    this->itemCooldown = sub_080002E0(this->field_0x7c.HALF.HI, 1);
-
-    SetTile(0x4022, this->field_0x7c.HALF.HI, 1);
-}
-
-// Probably related to knocking it down
-void sub_08092A94(Entity *this) {
-    // Check for the first frame of bonking animation
-    if (gLinkEntity.action != 6) {
-        return;
-    }
-
-    if (gLinkEntity.animationState != 0) {
-        return;
-    }
-
-    // Check if link is close enough to the mask
-    if (this->y.HALF.HI + 40 < gLinkEntity.y.HALF.HI) {
-        return;
-    }
-
-    if (this->x.HALF.HI - gLinkEntity.x.HALF.HI >= this->field_0xf || this->x.HALF.HI - gLinkEntity.x.HALF.HI <= -this->field_0xf) {
-        return;
-    }
-
-    // Presumably, make the mask fall
-    SetTile((u16)this->field_0x7c.HALF.LO, this->field_0x7c.HALF.HI, 1);
-    
-    sub_08000148(this->itemCooldown, this->field_0x7c.HALF.HI, 1);
-
-    this->action = 2;
-
-    this->height.HALF.HI -= 0x20;
-    this->y.HALF.HI += 0x20;
-
-    this->spriteOrder.b3 = 2;
-}
-
-// Probably falling down
-void sub_08092B0C(Entity *this) {
-    if (this->actionDelay == 1) {
-        this->action = 3;
-
-        this->actionDelay = 0;
-        switch (this->entityType.parameter & 0xC0)
-        {
-            case 0x80:
-                sub_08004488(0x72);
-            case 0x40:
-                SetFlag(this->field_0x86);
-                break;
-                
-        }
-
-        CreateFx(this, 5, 0);
-
-        sub_0805457C(this, 3);
-    }
-    else {
-        sub_080044EC(this, this->field_0x78);
-
-        if (this->height.HALF.HI == 0) {
-            this->actionDelay++;
-        }
-    }
-}
-
-void Mask_Delete(Entity *this) {
-    DeleteThisEntity();
-}
diff --git a/src/npc.c b/src/npc.c
index dbd376e7..49e6453f 100644
--- a/src/npc.c
+++ b/src/npc.c
@@ -135,4 +135,4 @@ void (*const gNPCFunctions[][3])(Entity* ent) = {
     { DeleteEntity, NULL, NULL }
 };
 //clang-format on
-const u8 npc_unk[] = { 0x04, 0x05, 0x06, 0x06 };
+const u8 npc_unk[] = { 0x04, 0x05, 0x06, 0x06 };
\ No newline at end of file
diff --git a/src/object.c b/src/object.c
index 6e526824..d4062e0b 100644
--- a/src/object.c
+++ b/src/object.c
@@ -198,4 +198,4 @@ void (*const gObjectFunctions[])(Entity*) = {
     EnemyItem,
     ObjectC1,
 };
-//clang-format on
+//clang-format on
\ No newline at end of file
diff --git a/src/position.c b/src/position.c
index 1c96046f..f1711a4a 100644
--- a/src/position.c
+++ b/src/position.c
@@ -53,4 +53,4 @@ void ResolveEntityOnTop(Entity *param_1,Entity *param_2)
 void sub_0806FAD8(Entity *param_1,Entity *param_2)
 {
   param_2->ticks.b0 = gUnk_08114F80[param_1->ticks.b0];
-}
+}
\ No newline at end of file
diff --git a/src/rem.c b/src/rem.c
index 8e3fe38f..93180c5e 100644
--- a/src/rem.c
+++ b/src/rem.c
@@ -52,4 +52,4 @@ void sub_0806A3D8(Entity *this)
   uVar1 = StartCutscene(this,&gUnk_08012F0C);
   *(u32 *)&this->cutsceneBeh = (u32)uVar1;
   sub_0807DD94(this, 0);
-}
+}
\ No newline at end of file
diff --git a/src/simon.c b/src/simon.c
index 45046de5..1e56d6bc 100644
--- a/src/simon.c
+++ b/src/simon.c
@@ -65,4 +65,4 @@ void sub_0806C2A0(u32 *param_1,struct_0806C2A0 *param_2)
             DoFade(0xc, 4);
             break;
     }
-}
+}
\ No newline at end of file
diff --git a/src/syrup.c b/src/syrup.c
index 4f0badb4..3e26793a 100644
--- a/src/syrup.c
+++ b/src/syrup.c
@@ -74,4 +74,4 @@ void sub_0806A26C(Entity *this)
 {
     asm(".include \"asm/non_matching/syrup/sub_0806A26C.inc\"");
 }
-#endif
+#endif
\ No newline at end of file
diff --git a/src/trig.c b/src/trig.c
index a406599f..7f546eae 100644
--- a/src/trig.c
+++ b/src/trig.c
@@ -327,4 +327,4 @@ const s16 gCosineTable[] = {
     Q_8_8(0.99609375),  // sin(317*(π/128))
     Q_8_8(0.99609375),  // sin(318*(π/128))
     Q_8_8(0.99609375),  // sin(319*(π/128))
-};
+};
\ No newline at end of file
diff --git a/src/windTribeFlag.c b/src/windTribeFlag.c
index b17e9e9e..b8257ff5 100644
--- a/src/windTribeFlag.c
+++ b/src/windTribeFlag.c
@@ -22,4 +22,4 @@ void WindTribeFlag(Entity *this)
   if (this->frameDuration == 0xff) {
     this->frameDuration = (Random() & 0xf) + 0x10;
   }
-}
+}
\ No newline at end of file
diff --git a/src/windcrest.c b/src/windcrest.c
index 231eb425..0429a658 100644
--- a/src/windcrest.c
+++ b/src/windcrest.c
@@ -38,4 +38,4 @@ void Windcrest_Unlock(Entity *this)
   PlaySFX(0x72);
   gUnk_02002A40.windcrests = gUnk_02002A40.windcrests | 1 << (this->entityType.parameter + 0x18);
   CreateFx(this, 0x46, 0);
-}
+}
\ No newline at end of file