diff --git a/asm/object/object17.s b/asm/object/object17.s
deleted file mode 100644
index 2dee5055..00000000
--- a/asm/object/object17.s
+++ /dev/null
@@ -1,119 +0,0 @@
-	.include "asm/macros.inc"
-
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-
-	thumb_func_start Object17
-Object17: @ 0x080861AC
-	push {lr}
-	ldr r2, _080861C0 @ =gUnk_08120660
-	ldrb r1, [r0, #0xc]
-	lsls r1, r1, #2
-	adds r1, r1, r2
-	ldr r1, [r1]
-	bl _call_via_r1
-	pop {pc}
-	.align 2, 0
-_080861C0: .4byte gUnk_08120660
-
-	thumb_func_start sub_080861C4
-sub_080861C4: @ 0x080861C4
-	push {r4, r5, r6, lr}
-	adds r4, r0, #0
-	movs r5, #1
-	movs r0, #1
-	strb r0, [r4, #0xc]
-	movs r0, #0x80
-	strh r0, [r4, #0x24]
-	ldr r0, _08086230 @ =gPlayerEntity
-	mov ip, r0
-	ldrb r1, [r0, #0x19]
-	lsrs r1, r1, #6
-	lsls r1, r1, #6
-	ldrb r3, [r4, #0x19]
-	movs r2, #0x3f
-	adds r0, r2, #0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r4, #0x19]
-	mov r0, ip
-	adds r0, #0x29
-	ldrb r1, [r0]
-	lsls r1, r1, #0x1d
-	adds r6, r4, #0
-	adds r6, #0x29
-	lsrs r1, r1, #0x1d
-	ldrb r3, [r6]
-	movs r0, #8
-	rsbs r0, r0, #0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r6]
-	mov r0, ip
-	adds r0, #0x38
-	ldrb r1, [r0]
-	adds r0, r4, #0
-	adds r0, #0x38
-	strb r1, [r0]
-	mov r1, ip
-	ldrb r0, [r1, #0x1b]
-	lsrs r0, r0, #6
-	lsls r0, r0, #6
-	ldrb r1, [r4, #0x1b]
-	ands r2, r1
-	orrs r2, r0
-	strb r2, [r4, #0x1b]
-	bl Random
-	ands r0, r5
-	strb r0, [r4, #0xa]
-	adds r0, r4, #0
-	movs r1, #0x11
-	bl InitializeAnimation
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-_08086230: .4byte gPlayerEntity
-
-	thumb_func_start sub_08086234
-sub_08086234: @ 0x08086234
-	push {r4, lr}
-	adds r4, r0, #0
-	ldrb r0, [r4, #0xa]
-	cmp r0, #0
-	beq _08086258
-	ldr r0, _08086254 @ =gRoomTransition
-	ldr r0, [r0]
-	movs r1, #1
-	ands r0, r1
-	cmp r0, #0
-	bne _0808625E
-	adds r0, r4, #0
-	bl GetNextFrame
-	b _0808625E
-	.align 2, 0
-_08086254: .4byte gRoomTransition
-_08086258:
-	adds r0, r4, #0
-	bl GetNextFrame
-_0808625E:
-	adds r0, r4, #0
-	bl sub_0806F3E4
-	cmp r0, #0
-	beq _0808626E
-	bl DeleteThisEntity
-	b _0808627E
-_0808626E:
-	ldr r0, _08086280 @ =gPlayerState
-	ldrb r1, [r0, #0x1c]
-	movs r0, #0xf
-	ands r0, r1
-	cmp r0, #1
-	beq _0808627E
-	bl DeleteThisEntity
-_0808627E:
-	pop {r4, pc}
-	.align 2, 0
-_08086280: .4byte gPlayerState
diff --git a/data/const/object/object17.s b/data/const/object/object17.s
deleted file mode 100644
index 2f7cf510..00000000
--- a/data/const/object/object17.s
+++ /dev/null
@@ -1,9 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.section .rodata
-    .align 2
-
-gUnk_08120660:: @ 08120660
-	.4byte sub_080861C4
-	.4byte sub_08086234
diff --git a/linker.ld b/linker.ld
index f09a1690..3900ebdc 100644
--- a/linker.ld
+++ b/linker.ld
@@ -643,7 +643,7 @@ SECTIONS {
         src/object/lilypadLarge.o(.text);
         src/object/object15.o(.text);
         src/object/floatingPlatform.o(.text);
-        asm/object/object17.o(.text);
+        src/object/object17.o(.text);
         asm/object/evilSpirit.o(.text);
         src/object/houseDoorExterior.o(.text);
         src/object/rupee.o(.text);
@@ -1362,7 +1362,7 @@ SECTIONS {
         data/const/object/lilypadLarge.o(.rodata);
         src/object/object15.o(.rodata);
         src/object/floatingPlatform.o(.rodata);
-        data/const/object/object17.o(.rodata);
+        src/object/object17.o(.rodata);
         data/const/object/evilSpirit.o(.rodata);
         data/animations/object/evilSpirit.o(.rodata);
         data/const/object/houseDoorExterior.o(.rodata);
diff --git a/src/object/object17.c b/src/object/object17.c
new file mode 100644
index 00000000..419b3173
--- /dev/null
+++ b/src/object/object17.c
@@ -0,0 +1,45 @@
+#define NENT_DEPRECATED
+#include "entity.h"
+#include "player.h"
+#include "asm.h"
+#include "room.h"
+#include "coord.h"
+
+void Object17_Init(Entity*);
+void Object17_Action1(Entity*);
+
+void Object17(Entity* this) {
+    static void (*const actionFuncs[])(Entity*) = {
+        Object17_Init,
+        Object17_Action1,
+    };
+
+    actionFuncs[this->action](this);
+}
+
+void Object17_Init(Entity* this) {
+    this->action = 1;
+    this->speed = 0x80;
+    this->spriteRendering.b3 = gPlayerEntity.spriteRendering.b3;
+    this->spritePriority.b0 = gPlayerEntity.spritePriority.b0;
+    this->collisionLayer = gPlayerEntity.collisionLayer;
+    this->spriteOrientation.flipY = gPlayerEntity.spriteOrientation.flipY;
+    this->type = Random() & 1;
+    InitializeAnimation(this, 0x11);
+}
+
+void Object17_Action1(Entity* this) {
+    if (this->type != 0) {
+        if ((gRoomTransition.frameCount & 1) == 0) {
+            GetNextFrame(this);
+        }
+    } else {
+        GetNextFrame(this);
+    }
+
+    if (sub_0806F3E4(this)) {
+        DeleteThisEntity();
+    } else if ((gPlayerState.field_0x1c & 0xf) != 1) {
+        DeleteThisEntity();
+    }
+}