diff --git a/linker.ld b/linker.ld
index 08bc6343..b9d4ba72 100644
--- a/linker.ld
+++ b/linker.ld
@@ -760,7 +760,7 @@ SECTIONS {
         src/object/object86.o(.text);
         src/object/octorokBossObject.o(.text);
         src/object/macroBook.o(.text);
-        asm/object/mazaalBossObject.o(.text);
+        src/object/mazaalBossObject.o(.text);
         src/object/cabinFurniture.o(.text);
         src/object/doubleBookshelf.o(.text);
         src/object/book.o(.text);
@@ -1509,7 +1509,7 @@ SECTIONS {
         src/object/octorokBossObject.o(.rodata);
         src/object/macroBook.o(.rodata);
         data/animations/object/macroBook.o(.rodata);
-        data/const/object/mazaalBossObject.o(.rodata);
+        src/object/mazaalBossObject.o(.rodata);
         src/object/cabinFurniture.o(.rodata);
         src/object/doubleBookshelf.o(.rodata);
         src/object/book.o(.rodata);
diff --git a/src/object/mazaalBossObject.c b/src/object/mazaalBossObject.c
new file mode 100644
index 00000000..ce25a865
--- /dev/null
+++ b/src/object/mazaalBossObject.c
@@ -0,0 +1,206 @@
+#define NENT_DEPRECATED
+#include "global.h"
+#include "entity.h"
+#include "enemy.h"
+#include "functions.h"
+#include "item.h"
+#include "object.h"
+#include "player.h"
+#include "new_player.h"
+#include "room.h"
+#include "screen.h"
+#include "sound.h"
+
+extern u16 script_Object89Mazaal[];
+
+typedef struct {
+    /* 0x00 */ Entity base;
+    /* 0x68 */ u8 unk_68[0x1C];
+    /* 0x84 */ ScriptExecutionContext* cutsceneBeh;
+} MazaalBossObjectEntity;
+
+enum MazaalBossObjectActions {
+    /* 0 */ MAZAAL_BOSS_OBJECT_ACTION_0,
+    /* 1 */ MAZAAL_BOSS_OBJECT_ACTION_1,
+    /* 2 */ MAZAAL_BOSS_OBJECT_ACTION_2,
+    /* 3 */ MAZAAL_BOSS_OBJECT_ACTION_3,
+    /* 4 */ MAZAAL_BOSS_OBJECT_ACTION_4,
+    /* 5 */ MAZAAL_BOSS_OBJECT_ACTION_5,
+    /* 6 */ MAZAAL_BOSS_OBJECT_ACTION_6,
+    /* 7 */ MAZAAL_BOSS_OBJECT_ACTION_7,
+    /* 8 */ MAZAAL_BOSS_OBJECT_ACTION_8,
+};
+
+void MazaalBossObject_Action0(MazaalBossObjectEntity* this); // 0809AB04
+void MazaalBossObject_Action1(MazaalBossObjectEntity* this); // 0809ABA4
+void MazaalBossObject_Action2(MazaalBossObjectEntity* this); // 0809ABB0
+void MazaalBossObject_Action3(MazaalBossObjectEntity* this); // 0809ABD4
+void MazaalBossObject_Action4(MazaalBossObjectEntity* this); // 0809ABF4
+void MazaalBossObject_Action5(MazaalBossObjectEntity* this); // 0809AC3C
+void MazaalBossObject_Action6(MazaalBossObjectEntity* this); // 0809ACA0
+void MazaalBossObject_Action7(MazaalBossObjectEntity* this); // 0809ACCC
+void MazaalBossObject_Action8(MazaalBossObjectEntity* this); // 0809ACE8
+void sub_0809AD68(MazaalBossObjectEntity* this); // 0809AD68
+void sub_0809AD8C(MazaalBossObjectEntity* this); // 0809AD8C
+
+void MazaalBossObject(Entity* thisx) {
+    static void (*const MazaalBossObject_Actions[])(MazaalBossObjectEntity*) = {
+        MazaalBossObject_Action0, MazaalBossObject_Action1, MazaalBossObject_Action2, MazaalBossObject_Action3, MazaalBossObject_Action4,
+        MazaalBossObject_Action5, MazaalBossObject_Action6, MazaalBossObject_Action7, MazaalBossObject_Action8,
+    };
+
+    MazaalBossObject_Actions[thisx->action]((MazaalBossObjectEntity*)thisx);
+}
+
+void MazaalBossObject_Action0(MazaalBossObjectEntity* this) {
+    Entity* mazaalHead;
+
+    if (CheckFlags(0x31)) {
+        sub_0809AD68(this);
+        sub_0809AD8C(this);
+        DeleteThisEntity();
+    }
+
+    mazaalHead = CreateEnemy(MAZAAL_HEAD, 0);
+    if (mazaalHead == NULL) {
+        return;
+    }
+
+    CopyPosition(super, mazaalHead);
+    super->child = mazaalHead;
+
+    if (gRoomTransition.field_0x38 != 0) {
+        if (gRoomTransition.field_0x39 != 0) {
+            DeleteThisEntity();
+        }
+
+        super->action = MAZAAL_BOSS_OBJECT_ACTION_7;
+        super->spriteSettings.draw = 0;
+        gRoomControls.camera_target = super;
+        sub_080809D4();
+    } else {
+        super->action = 1;
+        super->actionDelay = 30;
+        super->frameIndex = gRoomTransition.field_0x38;
+        super->spritePriority.b0 = 7;
+        super->spriteOffsetY = 0x20;
+
+        this->cutsceneBeh = StartCutscene(super, script_Object89Mazaal);
+    }
+}
+
+void MazaalBossObject_Action1(MazaalBossObjectEntity* this) {
+    ExecuteScriptForEntity(super, NULL);
+}
+
+void MazaalBossObject_Action2(MazaalBossObjectEntity* this) {
+    if (--super->actionDelay == 0) {
+        super->action = MAZAAL_BOSS_OBJECT_ACTION_3;
+        super->actionDelay = 120;
+        gRoomControls.camera_target = super->child;
+    }
+}
+
+void MazaalBossObject_Action3(MazaalBossObjectEntity* this) {
+    if (--super->actionDelay == 0) {
+        super->action = MAZAAL_BOSS_OBJECT_ACTION_4;
+        super->actionDelay = 90;
+        super->child->subAction = 1;
+    }
+}
+
+void MazaalBossObject_Action4(MazaalBossObjectEntity* this) {
+    if (super->child->subAction > 2) {
+        if (--super->actionDelay == 0) {
+            super->action = MAZAAL_BOSS_OBJECT_ACTION_5;
+            super->actionDelay = 8;
+            super->field_0xf = 0;
+            super->spriteRendering.alphaBlend = 1;
+
+            gScreen.controls.layerFXControl =
+                BLDCNT_TGT2_BG3 | BLDCNT_TGT2_BG2 | BLDCNT_TGT2_BG1 | BLDCNT_TGT2_BG0 | BLDCNT_EFFECT_BLEND;
+            gScreen.controls.alphaBlend = 0x10;
+        }
+    }
+}
+
+void MazaalBossObject_Action5(MazaalBossObjectEntity* this) {
+    u32 tmp;
+
+    if (--super->actionDelay == 0) {
+        super->actionDelay = 8;
+
+        tmp = ++super->field_0xf;
+        tmp &= 0xFF;
+        gScreen.controls.alphaBlend = BLDALPHA_BLEND((0x10 - tmp) & 0xFF, tmp);
+
+        if (super->field_0xf > 15) {
+            super->spriteRendering.alphaBlend = 4;
+            gScreen.controls.layerFXControl = 0;
+            super->action = MAZAAL_BOSS_OBJECT_ACTION_6;
+            super->actionDelay = 15;
+            super->spriteSettings.draw = 0;
+        }
+    }
+}
+
+void MazaalBossObject_Action6(MazaalBossObjectEntity* this) {
+    if (--super->actionDelay == 0) {
+        super->child->subAction = 6;
+        gRoomTransition.field_0x38 = 0xF1;
+
+        DeleteEntity(super);
+    }
+}
+
+void MazaalBossObject_Action7(MazaalBossObjectEntity* this) {
+    if (super->child->actionDelay == 1) {
+        super->action = MAZAAL_BOSS_OBJECT_ACTION_8;
+        super->subAction = 0;
+        super->actionDelay = 180;
+    }
+}
+
+void MazaalBossObject_Action8(MazaalBossObjectEntity* this) {
+    switch (super->subAction) {
+        default:
+            if (--super->actionDelay == 0) {
+                super->actionDelay = 90;
+                super->subAction = 1;
+                SoundReq(SFX_SECRET_BIG);
+                SetFlag(0x31);
+                sub_0809AD8C(this);
+            }
+            break;
+        case 1:
+            if (--super->actionDelay == 0) {
+                super->actionDelay = 120;
+                super->subAction = 2;
+                sub_0809AD68(this);
+            }
+            break;
+        case 2:
+            if (--super->actionDelay == 0) {
+                gRoomControls.camera_target = &gNewPlayerEntity.base;
+                gPlayerState.controlMode = CONTROL_1;
+                DeleteThisEntity();
+            }
+            break;
+    }
+}
+
+void sub_0809AD68(MazaalBossObjectEntity* this) {
+    LoadRoomEntityList(GetCurrentRoomProperty(super->type));
+    if (GetInventoryValue(ITEM_OCARINA) != 0) {
+        LoadRoomEntityList(GetCurrentRoomProperty(super->type2));
+    }
+}
+
+void sub_0809AD8C(MazaalBossObjectEntity* this) {
+    Entity* archway = CreateObject(ARCHWAY, 0x22, 0);
+
+    if (archway != NULL) {
+        archway->x.HALF.HI = gRoomControls.origin_x + 0xB8;
+        archway->y.HALF.HI = gRoomControls.origin_y + 8;
+    }
+}