diff --git a/asm/non_matching/manager2/sub_0805754C.inc b/asm/non_matching/manager2/sub_0805754C.inc
deleted file mode 100644
index ad1109b3..00000000
--- a/asm/non_matching/manager2/sub_0805754C.inc
+++ /dev/null
@@ -1,66 +0,0 @@
-	.syntax unified
-	push {r4, r5, r6, lr}
-	adds r2, r0, #0
-	ldr r3, _080575BC @ =gRoomControls
-	movs r0, #0xc
-	ldrsh r1, [r3, r0]
-	ldrh r0, [r3, #8]
-	subs r1, r1, r0
-	asrs r0, r1, #3
-	adds r1, r1, r0
-	ldr r4, _080575C0 @ =gScreen
-	movs r6, #0x3f
-	adds r0, r1, #0
-	ands r0, r6
-	strh r0, [r4, #0x30]
-	adds r0, r1, #0
-	cmp r1, #0
-	bge _08057570
-	adds r0, #0x3f
-_08057570:
-	asrs r0, r0, #6
-	lsls r0, r0, #9
-	ldr r5, _080575C4 @ =gMapDataTopSpecial
-	adds r1, r0, r5
-	str r1, [r4, #0x34]
-	ldr r0, [r2, #0x38]
-	cmp r0, r1
-	beq _08057586
-	str r1, [r2, #0x38]
-	movs r0, #1
-	strh r0, [r4, #0x32]
-_08057586:
-	movs r0, #0xc
-	ldrsh r1, [r3, r0]
-	ldrh r0, [r3, #8]
-	subs r1, r1, r0
-	asrs r0, r1, #2
-	adds r1, r1, r0
-	adds r0, r1, #0
-	ands r0, r6
-	strh r0, [r4, #0x18]
-	adds r0, r1, #0
-	cmp r0, #0
-	bge _080575A0
-	adds r0, #0x3f
-_080575A0:
-	asrs r0, r0, #6
-	lsls r0, r0, #9
-	movs r3, #0x80
-	lsls r3, r3, #6
-	adds r1, r5, r3
-	adds r1, r0, r1
-	str r1, [r4, #0x1c]
-	ldr r0, [r2, #0x3c]
-	cmp r0, r1
-	beq _080575BA
-	str r1, [r2, #0x3c]
-	movs r0, #1
-	strh r0, [r4, #0x1a]
-_080575BA:
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-_080575BC: .4byte gRoomControls
-_080575C0: .4byte gScreen
-_080575C4: .4byte gMapDataTopSpecial
-	.syntax divided
diff --git a/asm/non_matching/manager2/sub_08057688.inc b/asm/non_matching/manager2/sub_08057688.inc
deleted file mode 100644
index fae0c509..00000000
--- a/asm/non_matching/manager2/sub_08057688.inc
+++ /dev/null
@@ -1,12 +0,0 @@
-	.syntax unified
-	ldr r0, _08057694 @ =gScreen
-	ldr r1, _08057698 @ =0x00001D48
-	strh r1, [r0, #0x2c]
-	ldr r1, _0805769C @ =0x00001E48
-	strh r1, [r0, #0x14]
-	bx lr
-	.align 2, 0
-_08057694: .4byte gScreen
-_08057698: .4byte 0x00001D48
-_0805769C: .4byte 0x00001E48
-	.syntax divided
diff --git a/asm/non_matching/manager2/sub_080576A0.inc b/asm/non_matching/manager2/sub_080576A0.inc
deleted file mode 100644
index 22d3cfc8..00000000
--- a/asm/non_matching/manager2/sub_080576A0.inc
+++ /dev/null
@@ -1,15 +0,0 @@
-	.syntax unified
-	push {r4, lr}
-	adds r4, r0, #0
-	ldr r0, _080576BC @ =gRoomVars
-	ldrb r0, [r0, #0x10]
-	bl LoadGfxGroup
-	movs r0, #0
-	str r0, [r4, #0x38]
-	str r0, [r4, #0x3c]
-	adds r0, r4, #0
-	bl sub_0805754C
-	pop {r4, pc}
-	.align 2, 0
-_080576BC: .4byte gRoomVars
-	.syntax divided
diff --git a/src/manager/manager2.c b/src/manager/manager2.c
index 1198575c..ca71f503 100644
--- a/src/manager/manager2.c
+++ b/src/manager/manager2.c
@@ -2,13 +2,25 @@
 #include "entity.h"
 #include "screen.h"
 #include "functions.h"
+#include "room.h"
+
+typedef struct {
+    Manager manager;
+    u32 field_0x20[0x6];
+    void* field_0x38;
+    void* field_0x3c;
+} Manager2;
 
 extern void sub_080576A0();
-extern void sub_0805754C(Entity*);
+extern void sub_0805754C(Manager2*);
 
-void Manager2_Main(Entity* this) {
-    if (this->action == 0) {
-        this->action = 1;
+extern u8 gMapDataTopSpecial[];
+
+extern u32 gUnk_0200B650;
+
+void Manager2_Main(Manager2* this) {
+    if (this->manager.action == 0) {
+        this->manager.action = 1;
         gScreen.affine.bg3Updated = 0;
         gScreen.bg.bg1Updated = 0;
         sub_08052D74(this, sub_080576A0, 0);
@@ -16,10 +28,63 @@ void Manager2_Main(Entity* this) {
     sub_0805754C(this);
 }
 
-ASM_FUNC("asm/non_matching/manager2/sub_0805754C.inc", void sub_0805754C(Entity* this))
+void sub_0805754C(Manager2* this) {
+    s32 bgOffset;
 
-ASM_FUNC("asm/non_matching/manager2/sub_080575C8.inc", void sub_080575C8(u32 param))
+    bgOffset = (gRoomControls.roomScrollY - gRoomControls.roomOriginY);
+    bgOffset += bgOffset >> 3;
+    gScreen.affine.bg3yOffset = bgOffset & 0x3f;
+    gScreen.affine.bg3Tilemap = gMapDataTopSpecial + (bgOffset/0x40) * 0x200;
+    if (this->field_0x38 != gScreen.affine.bg3Tilemap) {
+        this->field_0x38 = gScreen.affine.bg3Tilemap;
+        gScreen.affine.bg3Updated = 1;
+    }
+    bgOffset = (gRoomControls.roomScrollY - gRoomControls.roomOriginY);
+    bgOffset += bgOffset >> 2;
+    gScreen.bg.bg1yOffset = bgOffset & 0x3f;
+    gScreen.bg.bg1Tilemap = gMapDataTopSpecial + 0x2000+ (bgOffset/0x40) * 0x200;
+    if (this->field_0x3c != gScreen.bg.bg1Tilemap) {
+        this->field_0x3c = gScreen.bg.bg1Tilemap;
+        gScreen.bg.bg1Updated = 1;
+    }
+}
 
-ASM_FUNC("asm/non_matching/manager2/sub_08057688.inc", void sub_08057688())
+void sub_080575C8(u32 param) {
+    s32 bgOffset;
 
-ASM_FUNC("asm/non_matching/manager2/sub_080576A0.inc", void sub_080576A0())
+    gUnk_0200B650 = 0;
+    *(u16*)0x4000000 = 0;
+    LoadGfxGroup(param);
+    gRoomVars.unk_10 = param;
+
+    bgOffset = (gRoomControls.roomScrollY - gRoomControls.roomOriginY);
+    bgOffset += bgOffset >> 3;
+    gScreen.affine.bg3yOffset = bgOffset & 0x3f;
+    gScreen.affine.bg3xOffset = 0;
+    gScreen.affine.bg3Tilemap = &gMapDataTopSpecial[(bgOffset / 0x40) * 0x200];
+    gScreen.affine.bg3Control = 0x1d49;    
+    gScreen.affine.bg3Updated = 1;
+
+    bgOffset = (gRoomControls.roomScrollY - gRoomControls.roomOriginY);
+    bgOffset += bgOffset >> 2;
+    gScreen.bg.bg1yOffset = bgOffset & 0x3f;
+    gScreen.bg.bg1xOffset = 0;
+    gScreen.bg.bg1Tilemap = &gMapDataTopSpecial[0x2000 + (bgOffset / 0x40) * 0x200];
+    gScreen.bg.bg1Control = 0x1e49;
+    gScreen.bg.bg1Updated = 1;
+    gScreen.controls.layerFXControl = 0x3c48;
+    gScreen.controls.alphaBlend = 0x609;
+    gScreen.lcd.displayControl |= 0xa00;
+}
+
+void sub_08057688(void) {
+    gScreen.affine.bg3Control = 0x1d48;
+    gScreen.bg.bg1Control = 0x1e48;
+}
+
+void sub_080576A0(Manager2* this) {
+    LoadGfxGroup(gRoomVars.unk_10);
+    this->field_0x38 = NULL;
+    this->field_0x3c = NULL;
+    sub_0805754C(this);
+}