diff --git a/asm/kinstone.s b/asm/kinstone.s
deleted file mode 100644
index 4f28742e..00000000
--- a/asm/kinstone.s
+++ /dev/null
@@ -1,53 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-	
-	.text
-
-	thumb_func_start sub_08018500
-sub_08018500: @ 0x08018500
-	push {r4, lr}
-	ldr r4, _08018550 @ =gUnk_02033AB8
-	adds r3, r4, #4
-	ldr r0, _08018554 @ =gUnk_080B3D14
-	ldrb r1, [r4]
-	lsls r1, r1, #1
-	adds r1, r1, r0
-	ldrb r2, [r4, #1]
-	lsls r0, r2, #1
-	adds r0, r0, r2
-	ldrh r1, [r1]
-	adds r0, r0, r1
-	movs r2, #0
-_0801851A:
-	strh r0, [r3]
-	adds r0, #1
-	adds r3, #2
-	adds r2, #1
-	cmp r2, #2
-	bls _0801851A
-	ldrb r1, [r4]
-	lsls r0, r1, #2
-	adds r0, r0, r1
-	ldr r1, _08018558 @ =0x00000C81
-	adds r0, r0, r1
-	movs r2, #0
-	adds r1, r4, #0
-	adds r1, #0xa
-_08018536:
-	strh r0, [r3]
-	adds r0, #1
-	adds r3, #2
-	adds r2, #1
-	cmp r2, #4
-	bls _08018536
-	movs r0, #5
-	bl sub_08018690
-	movs r0, #0
-	strb r0, [r4, #2]
-	pop {r4, pc}
-	.align 2, 0
-_08018550: .4byte gUnk_02033AB8
-_08018554: .4byte gUnk_080B3D14
-_08018558: .4byte 0x00000C81
diff --git a/linker.ld b/linker.ld
index af9cfea7..443d0cff 100644
--- a/linker.ld
+++ b/linker.ld
@@ -107,8 +107,6 @@ SECTIONS {
         . = 0x00033280; gActiveScriptInfo = .;
         . = 0x00033290; gUnk_02033290 = .;
         . = 0x00033A90; gArea = .;
-        . = 0x00033AB8; gUnk_02033AB8 = .;
-        . = 0x00033ACC; gUnk_02033ACC = .;
         . = 0x000342F8; gUnk_020342F8 = .;
         . = 0x00034330; gUnk_02034330 = .;
         . = 0x00034350; gRoomVars = .;
@@ -305,7 +303,6 @@ SECTIONS {
         src/npc.o(.text);
         src/collision.o(.text);
         /* C source compiled without interworking */
-        asm/kinstone.o(.text);
         src/kinstone.o(.text);
         src/playerItem/playerItemGustBig.o(.text);
         src/playerItem/playerItemBow.o(.text);
diff --git a/src/kinstone.c b/src/kinstone.c
index 11a5835e..24feb5ab 100644
--- a/src/kinstone.c
+++ b/src/kinstone.c
@@ -28,6 +28,7 @@ extern const EntityData gUnk_080FEE18[];
 extern const EntityData gUnk_080FEE48[];
 extern const EntityData gUnk_080FEE58[];
 extern const void* gUnk_080FED98[];
+extern const u16 gUnk_080B3D14[];
 
 void sub_08018AB4(int);
 void sub_08018BB4(int);
@@ -40,6 +41,32 @@ void sub_08018690(int param_1, u16* param_2);
 void sub_08018500();
 bool32 sub_080185B4(const struct_gUnk_080B3D20* param_1);
 
+void sub_08018500(void) {
+    s32 sVar1;
+    u32 i;
+    u16* puVar3;
+    u16* puVar4;
+    struct_area_28* ptr = &gArea.unk28;
+
+    puVar3 = ptr->unk2C;
+    sVar1 = gUnk_080B3D14[ptr->inventoryGfxIdx] + ptr->unk29 * 3;
+
+    for (i = 0; i < 3; i++) {
+        *puVar3 = sVar1;
+        sVar1++;
+        puVar3++;
+    }
+
+    sVar1 = ptr->inventoryGfxIdx * 5 + 0xc81;
+    for (i = 0, puVar4 = &ptr->unk2C[3]; i < 5; i++) {
+        *puVar3 = sVar1;
+        sVar1++;
+        puVar3++;
+    }
+    sub_08018690(5, puVar4);
+    ptr->unk2a = 0;
+}
+
 void sub_0801855C(void) {
     u32 bVar3;
     struct_area_28* ptr;