diff --git a/asm/code_8041AD0.s b/asm/code_8041AD0.s
deleted file mode 100644
index d45d8b6bd..000000000
--- a/asm/code_8041AD0.s
+++ /dev/null
@@ -1,162 +0,0 @@
-	#include "asm/constants/gba_constants.inc"
-	#include "asm/macros.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_804225C
-sub_804225C:
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	mov r8, r0
-	adds r5, r1, 0
-	lsls r2, 24
-	lsrs r4, r2, 24
-	adds r7, r4, 0
-	cmp r4, 0x11
-	bne _08042274
-	b _08042384
-_08042274:
-	adds r0, r5, 0
-	bl sub_803F428
-	lsls r0, 24
-	cmp r0, 0
-	bne _08042282
-	b _08042384
-_08042282:
-	adds r0, r4, 0
-	bl sub_800EF28
-	bl sub_800EF64
-	movs r0, 0x4
-	movs r1, 0x42
-	bl sub_803E708
-	movs r0, 0
-	ldrsh r1, [r5, r0]
-	lsls r0, r1, 1
-	adds r0, r1
-	lsls r0, 11
-	movs r1, 0xC0
-	lsls r1, 4
-	adds r0, r1
-	cmp r0, 0
-	bge _080422AA
-	adds r0, 0xFF
-_080422AA:
-	lsls r0, 8
-	lsrs r0, 16
-	ldr r1, _080422FC
-	ldr r2, [sp]
-	ands r2, r1
-	orrs r2, r0
-	str r2, [sp]
-	movs r0, 0x2
-	ldrsh r1, [r5, r0]
-	lsls r0, r1, 1
-	adds r0, r1
-	lsls r0, 11
-	movs r1, 0x80
-	lsls r1, 5
-	adds r0, r1
-	cmp r0, 0
-	bge _080422CE
-	adds r0, 0xFF
-_080422CE:
-	lsls r0, 8
-	lsrs r0, 16
-	lsls r0, 16
-	ldr r1, _08042300
-	ands r2, r1
-	orrs r2, r0
-	str r2, [sp]
-	adds r0, r4, 0
-	mov r1, sp
-	bl sub_800E448
-	adds r6, r0, 0
-	cmp r4, 0x4
-	bne _08042308
-	ldr r1, _08042304
-	movs r0, 0
-	bl sub_80421C0
-	movs r0, 0x28
-	movs r1, 0x33
-	bl sub_803E708
-	b _08042360
-	.align 2, 0
-_080422FC: .4byte 0xffff0000
-_08042300: .4byte 0x0000ffff
-_08042304: .4byte 0x00000193
-_08042308:
-	cmp r7, 0x8
-	bne _08042358
-	mov r0, r8
-	ldr r7, [r0, 0x70]
-	adds r0, r7, 0
-	adds r0, 0x46
-	ldrb r4, [r0]
-	movs r5, 0
-	b _0804231C
-_0804231A:
-	adds r5, 0x2
-_0804231C:
-	ldr r0, _08042354
-	cmp r5, r0
-	bgt _08042346
-	subs r4, 0x1
-	movs r0, 0x7
-	ands r4, r0
-	mov r0, r8
-	movs r1, 0
-	adds r2, r4, 0
-	bl sub_806CDD4
-	movs r0, 0x2
-	movs r1, 0x33
-	bl sub_803E708
-	adds r0, r6, 0
-	bl sub_800E9A8
-	lsls r0, 24
-	cmp r0, 0
-	bne _0804231A
-_08042346:
-	movs r0, 0x7
-	ands r4, r0
-	adds r0, r7, 0
-	adds r0, 0x46
-	strb r4, [r0]
-	b _08042360
-	.align 2, 0
-_08042354: .4byte 0x000003e7
-_08042358:
-	movs r0, 0x28
-	movs r1, 0x33
-	bl sub_803E708
-_08042360:
-	movs r5, 0
-	ldr r4, _08042368
-	b _0804236E
-	.align 2, 0
-_08042368: .4byte 0x000003e7
-_0804236C:
-	adds r5, 0x1
-_0804236E:
-	cmp r5, r4
-	bgt _08042384
-	movs r0, 0x42
-	bl sub_803E46C
-	adds r0, r6, 0
-	bl sub_800E9A8
-	lsls r0, 24
-	cmp r0, 0
-	bne _0804236C
-_08042384:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_804225C
-
-        .align 2,0
diff --git a/ld_script.txt b/ld_script.txt
index a34b84c8e..04764d2ff 100755
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -201,7 +201,6 @@ SECTIONS {
         src/code_8040094.o(.text);
         asm/code_8040094.o(.text);
         src/code_8041AD0.o(.text);
-        asm/code_8041AD0.o(.text);
         src/code_804267C.o(.text);
         src/code_8042B34.o(.text);
         src/dungeon_engine.o(.text);
diff --git a/src/code_8041AD0.c b/src/code_8041AD0.c
index 6e87e719c..26dd961cc 100644
--- a/src/code_8041AD0.c
+++ b/src/code_8041AD0.c
@@ -893,3 +893,57 @@ void sub_8042238(Entity *pokemon, Entity *target)
     else
         PlaySoundEffect(0x156);
 }
+
+extern void sub_800EF28(u8);
+extern void sub_803E708(u32, u32);
+extern u32 sub_800E448(u8, DungeonPos *);
+
+void sub_804225C(Entity *entity, DungeonPos *pos, u8 trapId)
+{
+    s32 uVar6;
+    DungeonPos newPos;
+    s32 i, x, y;
+
+    if (trapId == TRAP_WONDER_TILE)
+        return;
+    if (!sub_803F428(pos))
+        return;
+
+    sub_800EF28(trapId);
+    sub_800EF64();
+    sub_803E708(4,0x42);
+
+    x = X_POS_TO_PIXELPOS(pos->x);
+    newPos.x = x / 256;
+
+    y = Y_POS_TO_PIXELPOS(pos->y);
+    newPos.y = y / 256;
+
+    uVar6 = sub_800E448(trapId,&newPos);
+    if (trapId == TRAP_SUMMON_TRAP) {
+        sub_80421C0(0,0x193);
+        sub_803E708(0x28,0x33);
+    }
+    else if (trapId == TRAP_SPIN_TRAP) {
+        EntityInfo *info = GetEntInfo(entity);
+        s32 direction = info->action.direction;
+        for (i = 0; i < 1000; i += 2) {
+            direction--;
+            direction &= DIRECTION_MASK;
+            sub_806CDD4(entity,0,direction);
+            sub_803E708(2,0x33);
+            if (!sub_800E9A8(uVar6))
+                break;
+        }
+        info->action.direction = direction & DIRECTION_MASK;
+    }
+    else {
+        sub_803E708(0x28,0x33);
+    }
+
+    for (i = 0; i < 1000; i++) {
+        sub_803E46C(0x42);
+        if (!sub_800E9A8(uVar6))
+            break;
+    }
+}