diff --git a/asm/non_matching/common/zFree.inc b/asm/non_matching/common/zFree.inc
deleted file mode 100644
index 7ff819a2..00000000
--- a/asm/non_matching/common/zFree.inc
+++ /dev/null
@@ -1,58 +0,0 @@
-    .syntax unified
-	push {r4, r5, lr}
-	ldr r3, _0801DA44 @ =gzHeap
-	subs r1, r0, r3
-	ldr r0, _0801DA48 @ =0x00000FFF
-	cmp r1, r0
-	bhi _0801DA74
-	adds r4, r3, #0
-	ldrh r5, [r4]
-	adds r4, #2
-	movs r2, #0
-	cmp r2, r5
-	bhs _0801DA74
-	ldrh r0, [r4]
-	cmp r0, r1
-	bne _0801DA4C
-	lsls r0, r5, #2
-	subs r1, r3, #2
-	adds r0, r0, r1
-	ldrh r1, [r0]
-	strh r1, [r4]
-	strh r2, [r0]
-	adds r0, #2
-	ldrh r1, [r0]
-	strh r1, [r4, #2]
-	strh r2, [r0]
-	subs r0, r5, #1
-	strh r0, [r3]
-	b _0801DA74
-	.align 2, 0
-_0801DA44: .4byte gzHeap
-_0801DA48: .4byte 0x00000FFF
-_0801DA4C:
-	adds r4, #4
-	adds r2, #1
-	cmp r2, r5
-	bhs _0801DA74
-	ldrh r0, [r4]
-	cmp r0, r1
-	bne _0801DA4C
-	lsls r1, r5, #2
-	ldr r3, _0801DA78 @ =gUnk_0203553E
-	adds r1, r1, r3
-	ldrh r0, [r1]
-	strh r0, [r4]
-	movs r2, #0
-	strh r2, [r1]
-	adds r1, #2
-	ldrh r0, [r1]
-	strh r0, [r4, #2]
-	strh r2, [r1]
-	subs r0, r5, #1
-	strh r0, [r3, #2]
-_0801DA74:
-	pop {r4, r5, pc}
-	.align 2, 0
-_0801DA78: .4byte gUnk_0203553E
-    .syntax divided
diff --git a/linker.ld b/linker.ld
index b639a43c..6b46405f 100644
--- a/linker.ld
+++ b/linker.ld
@@ -127,7 +127,6 @@ SECTIONS {
         . = 0x000354B0; gUnk_020354B0 = .;
         . = 0x000354B4; gManagerCount = .;
         . = 0x000354C0; gUnk_020354C0 = .;
-        . = 0x0003553E; gUnk_0203553E = .;
         . = 0x00035540; gzHeap = .;
         . = 0x00035542; gUnk_02035542 = .;
         . = 0x00036540; gUnk_02036540 = .;
diff --git a/src/common.c b/src/common.c
index ee50370b..89220604 100644
--- a/src/common.c
+++ b/src/common.c
@@ -310,7 +310,31 @@ void sub_0801D898(void* dest, void* src, u32 word, u32 size) {
 
 ASM_FUNC("asm/non_matching/common/zMalloc.inc", void* zMalloc(u32 size));
 
-ASM_FUNC("asm/non_matching/common/zFree.inc", void zFree(void* ptr));
+void zFree(void* ptr) {
+    u32 uVar1;
+    u32 i;
+    u16* puVar3;
+    s32 uVar5;
+    u16* ptr2;
+
+    uVar1 = (int)ptr - (int)gzHeap;
+    if (uVar1 < 0x1000) {
+        puVar3 = (u16*)gzHeap;
+        uVar5 = *puVar3++;
+
+        for (i = 0; i < uVar5; puVar3 += 2, i++) {
+            if (*puVar3 == uVar1) {
+                ptr2 = &((u16*)(gzHeap - 2))[uVar5 * 2];
+                *puVar3 = *ptr2;
+                *ptr2++ = 0;
+                *(puVar3 + 1) = *ptr2;
+                *ptr2 = 0;
+                *(u16*)(gzHeap) = uVar5 - 1;
+                break;
+            }
+        }
+    }
+}
 
 void zMallocInit(void) {
     MemClear(gzHeap, sizeof(gzHeap));