diff --git a/asm/non_matching/manager12/Manager12_Main.inc b/asm/non_matching/manager12/Manager12_Main.inc
deleted file mode 100644
index 27e66c32..00000000
--- a/asm/non_matching/manager12/Manager12_Main.inc
+++ /dev/null
@@ -1,32 +0,0 @@
-	.syntax unified
-	push {r4, lr}
-	adds r4, r0, #0
-	ldrb r0, [r4, #0xc]
-	cmp r0, #0
-	bne _08059A20
-	movs r0, #1
-	strb r0, [r4, #0xc]
-	adds r1, r4, #0
-	adds r1, #0x22
-	movs r0, #0xff
-	strb r0, [r1]
-	subs r1, #1
-	movs r0, #1
-	rsbs r0, r0, #0
-	strb r0, [r1]
-	subs r1, #1
-	strb r0, [r1]
-	ldr r1, _08059A28 @ =sub_08059A2C
-	adds r0, r4, #0
-	movs r2, #0
-	bl sub_08052D74
-	adds r0, r4, #0
-	movs r1, #6
-	bl sub_0805E3A0
-_08059A20:
-	adds r0, r4, #0
-	bl sub_08059A58
-	pop {r4, pc}
-	.align 2, 0
-_08059A28: .4byte sub_08059A2C
-	.syntax divided
diff --git a/asm/non_matching/manager12/TryLoadPrologueHyruleTown.inc b/asm/non_matching/manager12/TryLoadPrologueHyruleTown.inc
deleted file mode 100644
index 366a47e2..00000000
--- a/asm/non_matching/manager12/TryLoadPrologueHyruleTown.inc
+++ /dev/null
@@ -1,65 +0,0 @@
-	.syntax unified
-	push {r4, lr}
-	ldr r0, _08059D68 @ =gRoomControls
-	ldrb r0, [r0, #4]
-	cmp r0, #0x15
-	beq _08059D78
-	ldr r0, _08059D6C @ =gUnk_08108398
-	bl sub_08056300
-	adds r4, r0, #0
-	cmp r4, #0xff
-	beq _08059D36
-	movs r0, #0
-	adds r1, r4, #0
-	bl sub_08059CC0
-_08059D36:
-	ldr r0, _08059D70 @ =gUnk_081083AE
-	bl sub_08056300
-	adds r4, r0, #0
-	cmp r4, #0xff
-	beq _08059D52
-	movs r0, #1
-	adds r1, r4, #0
-	bl sub_08059CC0
-	cmp r4, #2
-	bne _08059D52
-	bl sub_08059B18
-_08059D52:
-	ldr r0, _08059D74 @ =gUnk_081083C4
-	bl sub_08056300
-	adds r4, r0, #0
-	cmp r4, #0xff
-	beq _08059DA0
-	movs r0, #2
-	adds r1, r4, #0
-	bl sub_08059CC0
-	b _08059DA0
-	.align 2, 0
-_08059D68: .4byte gRoomControls
-_08059D6C: .4byte gUnk_08108398
-_08059D70: .4byte gUnk_081083AE
-_08059D74: .4byte gUnk_081083C4
-_08059D78:
-	ldr r0, _08059DA4 @ =gUnk_081083DA
-	bl sub_08056300
-	adds r4, r0, #0
-	cmp r4, #0xff
-	beq _08059D8C
-	movs r0, #0
-	adds r1, r4, #0
-	bl sub_08059CC0
-_08059D8C:
-	ldr r0, _08059DA8 @ =gUnk_081083F2
-	bl sub_08056300
-	adds r4, r0, #0
-	cmp r4, #0xff
-	beq _08059DA0
-	movs r0, #2
-	adds r1, r4, #0
-	bl sub_08059CC0
-_08059DA0:
-	pop {r4, pc}
-	.align 2, 0
-_08059DA4: .4byte gUnk_081083DA
-_08059DA8: .4byte gUnk_081083F2
-	.syntax divided
diff --git a/asm/non_matching/manager12/sub_08059A2C.inc b/asm/non_matching/manager12/sub_08059A2C.inc
deleted file mode 100644
index 3288c841..00000000
--- a/asm/non_matching/manager12/sub_08059A2C.inc
+++ /dev/null
@@ -1,23 +0,0 @@
-	.syntax unified
-	push {lr}
-	adds r2, r0, #0
-	ldr r1, _08059A54 @ =gRoomVars
-	movs r0, #0xff
-	strb r0, [r1, #0x12]
-	movs r0, #1
-	rsbs r0, r0, #0
-	strb r0, [r1, #0x11]
-	strb r0, [r1, #0x10]
-	adds r1, r2, #0
-	adds r1, #0x22
-	strb r0, [r1]
-	subs r1, #1
-	strb r0, [r1]
-	subs r1, #1
-	strb r0, [r1]
-	adds r0, r2, #0
-	bl sub_08059A58
-	pop {pc}
-	.align 2, 0
-_08059A54: .4byte gRoomVars
-	.syntax divided
diff --git a/asm/non_matching/manager12/sub_08059A58.inc b/asm/non_matching/manager12/sub_08059A58.inc
deleted file mode 100644
index 52e7b5e5..00000000
--- a/asm/non_matching/manager12/sub_08059A58.inc
+++ /dev/null
@@ -1,87 +0,0 @@
-	.syntax unified
-	push {r4, r5, lr}
-	adds r5, r0, #0
-	ldr r0, _08059AC4 @ =gRoomControls
-	ldrb r0, [r0, #4]
-	cmp r0, #0x15
-	beq _08059AD4
-	adds r4, r5, #0
-	adds r4, #0x20
-	ldr r3, _08059AC8 @ =gUnk_08108398
-	adds r0, r5, #0
-	movs r1, #0
-	adds r2, r4, #0
-	bl sub_08059C8C
-	cmp r0, #0
-	beq _08059A80
-	ldrb r1, [r4]
-	movs r0, #0
-	bl sub_08059CC0
-_08059A80:
-	adds r4, r5, #0
-	adds r4, #0x21
-	ldr r3, _08059ACC @ =gUnk_081083AE
-	adds r0, r5, #0
-	movs r1, #1
-	adds r2, r4, #0
-	bl sub_08059C8C
-	cmp r0, #0
-	beq _08059AA6
-	ldrb r1, [r4]
-	movs r0, #1
-	bl sub_08059CC0
-	ldrb r0, [r4]
-	cmp r0, #2
-	bne _08059AA6
-	bl sub_08059B18
-_08059AA6:
-	adds r4, r5, #0
-	adds r4, #0x22
-	ldr r3, _08059AD0 @ =gUnk_081083C4
-	adds r0, r5, #0
-	movs r1, #2
-	adds r2, r4, #0
-	bl sub_08059C8C
-	cmp r0, #0
-	beq _08059B0C
-	ldrb r1, [r4]
-	movs r0, #2
-	bl sub_08059CC0
-	b _08059B0C
-	.align 2, 0
-_08059AC4: .4byte gRoomControls
-_08059AC8: .4byte gUnk_08108398
-_08059ACC: .4byte gUnk_081083AE
-_08059AD0: .4byte gUnk_081083C4
-_08059AD4:
-	adds r4, r5, #0
-	adds r4, #0x20
-	ldr r3, _08059B10 @ =gUnk_081083DA
-	adds r0, r5, #0
-	movs r1, #0
-	adds r2, r4, #0
-	bl sub_08059C8C
-	cmp r0, #0
-	beq _08059AF0
-	ldrb r1, [r4]
-	movs r0, #0
-	bl sub_08059CC0
-_08059AF0:
-	adds r4, r5, #0
-	adds r4, #0x22
-	ldr r3, _08059B14 @ =gUnk_081083F2
-	adds r0, r5, #0
-	movs r1, #2
-	adds r2, r4, #0
-	bl sub_08059C8C
-	cmp r0, #0
-	beq _08059B0C
-	ldrb r1, [r4]
-	movs r0, #2
-	bl sub_08059CC0
-_08059B0C:
-	pop {r4, r5, pc}
-	.align 2, 0
-_08059B10: .4byte gUnk_081083DA
-_08059B14: .4byte gUnk_081083F2
-	.syntax divided
diff --git a/asm/non_matching/manager12/sub_08059B18.inc b/asm/non_matching/manager12/sub_08059B18.inc
deleted file mode 100644
index ba1c74d4..00000000
--- a/asm/non_matching/manager12/sub_08059B18.inc
+++ /dev/null
@@ -1,172 +0,0 @@
-	.syntax unified
-	push {r4, r5, r6, r7, lr}
-	mov r7, sb
-	mov r6, r8
-	push {r6, r7}
-	sub sp, #4
-	movs r0, #0x18
-	bl CheckGlobalFlag
-	cmp r0, #0
-	beq _08059BEC
-	movs r6, #0
-	movs r0, #0x3f
-	mov sb, r0
-	movs r2, #0xc4
-	lsls r2, r2, #1
-	mov r8, r2
-_08059B38:
-	movs r5, #0
-	lsls r1, r6, #4
-	mov r2, r8
-	lsrs r0, r2, #4
-	mov r2, sb
-	ands r0, r2
-	lsls r3, r0, #6
-	movs r7, #0x28
-	ldr r0, _08059BD8 @ =0x000004AB
-	adds r4, r1, r0
-_08059B4C:
-	lsrs r1, r7, #4
-	mov r2, sb
-	ands r1, r2
-	orrs r1, r3
-	adds r0, r4, #0
-	movs r2, #1
-	str r3, [sp]
-	bl sub_0807B9B8
-	adds r7, #0x10
-	adds r4, #1
-	adds r5, #1
-	ldr r3, [sp]
-	cmp r5, #3
-	bls _08059B4C
-	movs r0, #0x10
-	add r8, r0
-	adds r6, #1
-	cmp r6, #3
-	bls _08059B38
-	movs r6, #0
-	movs r3, #0x3f
-_08059B78:
-	movs r5, #0
-	lsls r1, r6, #4
-	adds r6, #1
-	mov r8, r6
-	movs r2, #0xc4
-	lsls r2, r2, #1
-	adds r0, r1, r2
-	lsrs r0, r0, #4
-	ands r0, r3
-	lsls r7, r0, #6
-	movs r6, #0x28
-	movs r0, #0x88
-	lsls r0, r0, #3
-	adds r4, r1, r0
-_08059B94:
-	lsrs r1, r6, #4
-	ands r1, r3
-	orrs r1, r7
-	adds r0, r4, #0
-	movs r2, #2
-	str r3, [sp]
-	bl sub_0807B9B8
-	adds r6, #0x10
-	adds r4, #1
-	adds r5, #1
-	ldr r3, [sp]
-	cmp r5, #3
-	bls _08059B94
-	mov r6, r8
-	cmp r6, #2
-	bls _08059B78
-	ldr r1, _08059BDC @ =0x000005C2
-	movs r0, #0xd6
-	movs r2, #2
-	bl sub_0807B9B8
-	ldr r1, _08059BE0 @ =0x000005C3
-	movs r0, #0xd7
-	movs r2, #2
-	bl sub_0807B9B8
-	ldr r0, _08059BE4 @ =gUnk_086E8460
-	ldr r1, _08059BE8 @ =0x06001800
-	movs r2, #0x80
-	lsls r2, r2, #4
-	bl LoadResourceAsync
-	b _08059C5E
-	.align 2, 0
-_08059BD8: .4byte 0x000004AB
-_08059BDC: .4byte 0x000005C2
-_08059BE0: .4byte 0x000005C3
-_08059BE4: .4byte gUnk_086E8460
-_08059BE8: .4byte 0x06001800
-_08059BEC:
-	movs r0, #0x19
-	bl CheckGlobalFlag
-	cmp r0, #0
-	beq _08059C5E
-	movs r6, #0
-	movs r3, #0x3f
-_08059BFA:
-	movs r5, #0
-	lsls r1, r6, #4
-	adds r6, #1
-	mov r8, r6
-	movs r2, #0xc4
-	lsls r2, r2, #1
-	adds r0, r1, r2
-	lsrs r0, r0, #4
-	ands r0, r3
-	lsls r7, r0, #6
-	movs r6, #0x28
-	ldr r0, _08059C68 @ =0x000004A6
-	adds r4, r1, r0
-_08059C14:
-	lsrs r1, r6, #4
-	ands r1, r3
-	orrs r1, r7
-	adds r0, r4, #0
-	movs r2, #1
-	str r3, [sp]
-	bl sub_0807B9B8
-	adds r6, #0x10
-	adds r4, #1
-	adds r5, #1
-	ldr r3, [sp]
-	cmp r5, #3
-	bls _08059C14
-	mov r6, r8
-	cmp r6, #4
-	bls _08059BFA
-	ldr r0, _08059C6C @ =0x00000444
-	ldr r1, _08059C70 @ =0x00000602
-	movs r2, #2
-	bl sub_0807B9B8
-	ldr r0, _08059C74 @ =0x00000445
-	ldr r1, _08059C78 @ =0x00000605
-	movs r2, #2
-	bl sub_0807B9B8
-	ldr r0, _08059C7C @ =0x00000454
-	ldr r1, _08059C80 @ =0x00000642
-	movs r2, #2
-	bl sub_0807B9B8
-	ldr r0, _08059C84 @ =0x00000455
-	ldr r1, _08059C88 @ =0x00000645
-	movs r2, #2
-	bl sub_0807B9B8
-_08059C5E:
-	add sp, #4
-	pop {r3, r4}
-	mov r8, r3
-	mov sb, r4
-	pop {r4, r5, r6, r7, pc}
-	.align 2, 0
-_08059C68: .4byte 0x000004A6
-_08059C6C: .4byte 0x00000444
-_08059C70: .4byte 0x00000602
-_08059C74: .4byte 0x00000445
-_08059C78: .4byte 0x00000605
-_08059C7C: .4byte 0x00000454
-_08059C80: .4byte 0x00000642
-_08059C84: .4byte 0x00000455
-_08059C88: .4byte 0x00000645
-	.syntax divided
diff --git a/asm/non_matching/manager12/sub_08059CC0.inc b/asm/non_matching/manager12/sub_08059CC0.inc
deleted file mode 100644
index e0d66ece..00000000
--- a/asm/non_matching/manager12/sub_08059CC0.inc
+++ /dev/null
@@ -1,41 +0,0 @@
-	.syntax unified
-	push {r4, r5, r6, lr}
-	adds r2, r1, #0
-	ldr r1, _08059CDC @ =gRoomVars
-	adds r1, #0x10
-	adds r0, r0, r1
-	strb r2, [r0]
-	ldr r0, _08059CE0 @ =gRoomControls
-	ldrb r0, [r0, #4]
-	cmp r0, #0x15
-	beq _08059CE8
-	lsls r1, r2, #4
-	ldr r0, _08059CE4 @ =gUnk_08108408
-	b _08059CEC
-	.align 2, 0
-_08059CDC: .4byte gRoomVars
-_08059CE0: .4byte gRoomControls
-_08059CE4: .4byte gUnk_08108408
-_08059CE8:
-	lsls r1, r2, #4
-	ldr r0, _08059D10 @ =gUnk_08108468
-_08059CEC:
-	adds r6, r1, r0
-	ldr r0, [r6]
-	ldr r4, _08059D14 @ =gGlobalGfxAndPalettes
-	adds r0, r0, r4
-	ldr r1, [r6, #4]
-	movs r5, #0x80
-	lsls r5, r5, #5
-	adds r2, r5, #0
-	bl LoadResourceAsync
-	ldr r0, [r6, #8]
-	adds r0, r0, r4
-	ldr r1, [r6, #0xc]
-	adds r2, r5, #0
-	bl LoadResourceAsync
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-_08059D10: .4byte gUnk_08108468
-_08059D14: .4byte gGlobalGfxAndPalettes
-	.syntax divided
diff --git a/include/room.h b/include/room.h
index f192c164..c26c9ed3 100644
--- a/include/room.h
+++ b/include/room.h
@@ -46,8 +46,7 @@ typedef struct {
     u8 field_0x9;
     u8 unk2;
     u8 filler2[5];
-    u8 unk_10;
-    u8 filler6[3];
+    u8 unk_10[4];
     u32 roomFlags;
     u32 unk3;
     u8 filler4[48];
diff --git a/include/save.h b/include/save.h
index 65258dee..dbb2b6b3 100644
--- a/include/save.h
+++ b/include/save.h
@@ -41,7 +41,8 @@ typedef struct {
     /*0x141*/ u8 unk141[0x34f];
     /*0x490*/ u32 unk490;
     /*0x494*/ u32 unk494;
-    /*0x498*/ u8 filler498[0x1C];
+    /*0x498*/ u32 unk498;
+    /*0x49C*/ u8 filler49C[0x18];
 } SaveFile;
 
 extern SaveFile gSave;
diff --git a/src/manager/manager12.c b/src/manager/manager12.c
index 15759fdd..35d431d2 100644
--- a/src/manager/manager12.c
+++ b/src/manager/manager12.c
@@ -1,15 +1,178 @@
 #include "manager.h"
+#include "room.h"
+#include "functions.h"
+#include "flags.h"
 
-ASM_FUNC("asm/non_matching/manager12/Manager12_Main.inc", void Manager12_Main())
+typedef struct {
+    Manager manager;
+    u8 field_0x20;
+    u8 field_0x21;
+    u8 field_0x22;
+} Manager12;
 
-ASM_FUNC("asm/non_matching/manager12/sub_08059A2C.inc", void sub_08059A2C())
+void sub_08059A58(Manager12*);
 
-ASM_FUNC("asm/non_matching/manager12/sub_08059A58.inc", void sub_08059A58())
+void sub_08059A2C(Manager12*);
 
-ASM_FUNC("asm/non_matching/manager12/sub_08059B18.inc", void sub_08059B18())
+u32 sub_08056300(u16* arr);
+extern u16 gUnk_081083DA;
+extern u16 gUnk_081083F2;
+extern u16 gUnk_08108398;
+extern u16 gUnk_081083AE;
+extern u16 gUnk_081083C4;
 
-ASM_FUNC("asm/non_matching/manager12/sub_08059C8C.inc", void sub_08059C8C())
+void sub_08059CC0(u32, u32);
+void sub_08059B18();
 
-ASM_FUNC("asm/non_matching/manager12/sub_08059CC0.inc", void sub_08059CC0())
+bool32 sub_08059C8C(Manager12*, u32, u8*, u16*);
 
-ASM_FUNC("asm/non_matching/manager12/TryLoadPrologueHyruleTown.inc", void TryLoadPrologueHyruleTown())
+extern void sub_0807B9B8(s32, s32, s32);
+extern u32 gUnk_086E8460;
+
+typedef struct {
+    u32 field_0x0;
+    u32 field_0x4;
+    u32 field_0x8;
+    u32 field_0xc;
+} Unknown;
+
+extern Unknown gUnk_08108468[];
+extern Unknown gUnk_08108408[];
+extern const u8 gGlobalGfxAndPalettes[];
+
+
+void Manager12_Main(Manager12* this) {
+    if (this->manager.action == 0) {
+        this->manager.action = 1;
+        this->field_0x22 = 0xff;
+        this->field_0x21 = 0xff;
+        this->field_0x20 = 0xff;
+        sub_08052D74(this, sub_08059A2C, NULL);
+        sub_0805E3A0(this, 6);
+    }
+    sub_08059A58(this);
+}
+
+void sub_08059A2C(Manager12* this) {
+    gRoomVars.unk_10[2] = 0xff;
+    gRoomVars.unk_10[1] = 0xff;
+    gRoomVars.unk_10[0] = 0xff;
+    this->field_0x22 = 0xff;
+    this->field_0x21 = 0xff;
+    this->field_0x20 = 0xff;
+    sub_08059A58(this);
+}
+
+void sub_08059A58(Manager12* this) {
+    if (gRoomControls.areaID != 0x15) {
+        if (sub_08059C8C(this, 0, &this->field_0x20, &gUnk_08108398) != 0) {
+            sub_08059CC0(0, (u32)this->field_0x20);
+        }
+        if (sub_08059C8C(this, 1, &this->field_0x21, &gUnk_081083AE) != 0) {
+            sub_08059CC0(1, this->field_0x21);
+            if (this->field_0x21 == 2) {
+                sub_08059B18();
+            }
+        }
+        if (sub_08059C8C(this, 2, &this->field_0x22, &gUnk_081083C4) != 0) {
+            sub_08059CC0(2, (u32)this->field_0x22);
+        }
+    } else {
+        if (sub_08059C8C(this, 0, &this->field_0x20, &gUnk_081083DA) != 0) {
+            sub_08059CC0(0, (u32)this->field_0x20);
+        }
+        if (sub_08059C8C(this, 2, &this->field_0x22, &gUnk_081083F2) != 0) {
+            sub_08059CC0(2, (u32)this->field_0x22);
+        }
+    }
+}
+
+
+#define COMMON(tmp2, tmp1) ((tmp2) >> 4 & 0x3f) | (((tmp1)+0x188U) >> 4 & 0x3f) << 6
+void sub_08059B18(void) {
+    u32 loopVar;
+    u32 innerLoopVar;
+
+    if (CheckGlobalFlag(TATEKAKE_HOUSE) != 0) {
+        for(loopVar = 0; loopVar < 4; ++loopVar) {
+            for(innerLoopVar = 0; innerLoopVar < 4; ++innerLoopVar) {
+                sub_0807B9B8(loopVar * 0x10 + 0x4ab + innerLoopVar, COMMON(0x28 + 0x10 * innerLoopVar, loopVar * 0x10), 1);
+            }
+        }
+
+        for(loopVar = 0; loopVar < 3; ++loopVar) {
+            for(innerLoopVar = 0; innerLoopVar < 4; ++innerLoopVar) {
+                sub_0807B9B8(loopVar * 0x10 + 0x440 + innerLoopVar, COMMON(0x28 + 0x10 * innerLoopVar, loopVar * 0x10), 2);
+            }
+        }
+        sub_0807B9B8(0xd6, 0x5c2, 2);
+        sub_0807B9B8(0xd7, 0x5c3, 2);
+        LoadResourceAsync(&gUnk_086E8460, 0x6001800, 0x800);
+    } else {
+        if (CheckGlobalFlag(TATEKAKE_TOCHU) != 0) {
+            for(loopVar = 0; loopVar < 5; ++loopVar) {
+                for(innerLoopVar = 0; innerLoopVar < 4; ++innerLoopVar) {
+                    sub_0807B9B8(loopVar * 0x10 + 0x4a6 + innerLoopVar, COMMON(0x28 + 0x10 * innerLoopVar, loopVar * 0x10), 1);
+                }
+            }
+            sub_0807B9B8(0x444, 0x602, 2);
+            sub_0807B9B8(0x445, 0x605, 2);
+            sub_0807B9B8(0x454, 0x642, 2);
+            sub_0807B9B8(0x455, 0x645, 2);
+        }
+    }
+}
+
+bool32 sub_08059C8C(Manager12* this, u32 param_2, u8* param_3, u16* param_4) {
+    bool32 bVar2;
+
+    *param_3 = sub_08056300(param_4);
+    if ((*param_3 != 0xff) && (gRoomVars.unk_10[param_2] != *param_3)) {
+        gRoomVars.unk_10[param_2] = *param_3;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+
+void sub_08059CC0(u32 param_1, u32 param_2) {
+    Unknown* unknown;
+
+    gRoomVars.unk_10[param_1] = param_2;
+    if (gRoomControls.areaID != 0x15) {
+        unknown = &gUnk_08108408[param_2];
+    } else {
+        unknown = &gUnk_08108468[param_2];
+    }
+    LoadResourceAsync((void*)&gGlobalGfxAndPalettes + unknown->field_0x0, unknown->field_0x4, 0x1000);
+    LoadResourceAsync((void*)&gGlobalGfxAndPalettes + unknown->field_0x8, unknown->field_0xc, 0x1000);
+}
+
+void TryLoadPrologueHyruleTown(void) {
+    u32 tmp;
+
+    if (gRoomControls.areaID != 0x15) {
+        tmp = sub_08056300(&gUnk_08108398);
+        if (tmp != 0xff) {
+            sub_08059CC0(0, tmp);
+        }
+        tmp = sub_08056300(&gUnk_081083AE);
+        if ((tmp != 0xff) && (sub_08059CC0(1, tmp), tmp == 2)) {
+            sub_08059B18();
+        }
+        tmp = sub_08056300(&gUnk_081083C4);
+        if (tmp != 0xff) {
+            sub_08059CC0(2, tmp);
+        }
+    } else {
+        tmp = sub_08056300(&gUnk_081083DA);
+        if (tmp != 0xff) {
+            sub_08059CC0(0, tmp);
+        }
+        tmp = sub_08056300(&gUnk_081083F2);
+        if (tmp != 0xff) {
+            sub_08059CC0(2, tmp);
+        }
+    }
+}