diff --git a/asm/rom_11B9C.s b/asm/rom_11B9C.s
index 4b04919..4174156 100644
--- a/asm/rom_11B9C.s
+++ b/asm/rom_11B9C.s
@@ -6264,243 +6264,7 @@ _08017628: .4byte 0x000003AB
 _0801762C: .4byte 0x000003DA
 _08017630: .4byte 0x000003A2
 
-    .section .text176B0
-
-	thumb_func_start sub_176B0
-sub_176B0: @ 0x080176B0
-	push {r4, r5, r6, r7, lr}
-	mov r7, sl
-	mov r6, sb
-	mov r5, r8
-	push {r5, r6, r7}
-	sub sp, #8
-	mov r8, r0
-	mov sl, r1
-	add r2, sp, #4
-	movs r1, #0
-	strh r1, [r2]
-	ldr r0, _080177B0 @ =gCurrentPinballGame
-	ldr r0, [r0]
-	mov sb, r0
-	ldr r0, _080177B4 @ =0x0000132C
-	add r0, sb
-	ldr r0, [r0]
-	strh r1, [r0, #4]
-	mov r0, r8
-	movs r1, #0
-	ldrsh r4, [r0, r1]
-	adds r0, r4, #0
-	cmp r4, #0
-	bge _080176E2
-	adds r0, r4, #7
-_080176E2:
-	asrs r1, r0, #3
-	lsls r0, r1, #0x10
-	lsrs r0, r0, #0x10
-	ldr r2, _080177B8 @ =0xFFFF0000
-	mov ip, r2
-	ands r5, r2
-	orrs r5, r0
-	mov r0, r8
-	movs r2, #2
-	ldrsh r3, [r0, r2]
-	adds r0, r3, #0
-	cmp r3, #0
-	bge _080176FE
-	adds r0, r3, #7
-_080176FE:
-	asrs r0, r0, #3
-	lsls r2, r0, #0x10
-	ldr r7, _080177BC @ =0x0000FFFF
-	ands r5, r7
-	lsls r1, r1, #3
-	subs r1, r4, r1
-	lsls r1, r1, #0x10
-	lsrs r1, r1, #0x10
-	mov r4, ip
-	ands r6, r4
-	orrs r6, r1
-	lsls r0, r0, #3
-	subs r0, r3, r0
-	lsls r0, r0, #0x10
-	ands r6, r7
-	orrs r6, r0
-	orrs r5, r2
-	asrs r4, r2, #0x10
-	adds r2, r4, #0
-	cmp r4, #0
-	bge _0801772A
-	adds r2, #0x3f
-_0801772A:
-	asrs r2, r2, #6
-	mov r0, sb
-	adds r0, #0x24
-	movs r3, #0
-	ldrsb r3, [r0, r3]
-	lsls r1, r2, #6
-	subs r1, r4, r1
-	lsls r1, r1, #0x10
-	ands r5, r7
-	ldr r0, _080177C0 @ =gUnknown_02031520
-	mov ip, r0
-	adds r3, r3, r2
-	lsls r3, r3, #2
-	mov r2, ip
-	adds r2, #0x38
-	adds r2, r3, r2
-	lsls r0, r5, #0x10
-	asrs r0, r0, #0x10
-	asrs r1, r1, #0xa
-	adds r1, r1, r0
-	ldr r0, [r2]
-	lsls r1, r1, #1
-	adds r1, r1, r0
-	mov r4, ip
-	adds r4, #0x48
-	adds r4, r3, r4
-	movs r0, #0
-	ldrsh r2, [r1, r0]
-	asrs r1, r6, #0x10
-	lsls r0, r6, #0x10
-	asrs r0, r0, #0x10
-	lsls r1, r1, #3
-	lsls r2, r2, #6
-	adds r1, r1, r2
-	adds r1, r1, r0
-	ldr r2, [r4]
-	lsls r0, r1, #1
-	adds r0, r0, r2
-	ldrh r2, [r0]
-	mov r0, sp
-	strh r2, [r0]
-	mov r0, ip
-	adds r0, #0x58
-	adds r3, r3, r0
-	ldr r0, [r3]
-	adds r0, r0, r1
-	ldrb r0, [r0]
-	mov r4, sp
-	adds r4, #2
-	strb r0, [r4]
-	mov r0, r8
-	mov r1, sp
-	adds r2, r4, #0
-	bl sub_17898
-	ldrb r0, [r4]
-	movs r3, #0xf
-	ands r3, r0
-	lsrs r5, r0, #4
-	subs r0, r3, #1
-	cmp r0, #5
-	bhi _08017876
-	lsls r0, r0, #2
-	ldr r1, _080177C4 @ =_080177C8
-	adds r0, r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080177B0: .4byte gCurrentPinballGame
-_080177B4: .4byte 0x0000132C
-_080177B8: .4byte 0xFFFF0000
-_080177BC: .4byte 0x0000FFFF
-_080177C0: .4byte gUnknown_02031520
-_080177C4: .4byte _080177C8
-_080177C8: @ jump table
-	.4byte _080177E0 @ case 0
-	.4byte _08017804 @ case 1
-	.4byte _08017804 @ case 2
-	.4byte _080177E0 @ case 3
-	.4byte _08017874 @ case 4
-	.4byte _080177E0 @ case 5
-_080177E0:
-	ldr r2, _08017800 @ =gCurrentPinballGame
-	ldr r0, [r2]
-	subs r1, r3, #1
-	adds r0, #0x23
-	strb r1, [r0]
-	ldr r0, [r2]
-	adds r0, #0x22
-	movs r1, #1
-	strb r1, [r0]
-	mov r0, sp
-	ldrh r0, [r0]
-	mov r2, sl
-	strh r0, [r2]
-	mov r4, sp
-	strh r1, [r4, #4]
-	b _08017876
-	.align 2, 0
-_08017800: .4byte gCurrentPinballGame
-_08017804:
-	ldr r2, _0801785C @ =gCurrentPinballGame
-	ldr r0, [r2]
-	adds r0, #0x23
-	movs r1, #0
-	strb r1, [r0]
-	ldr r0, [r2]
-	adds r0, #0x22
-	movs r3, #1
-	strb r3, [r0]
-	mov r0, sp
-	ldrh r1, [r0]
-	ldr r0, _08017860 @ =0x0000FFF0
-	ands r0, r1
-	mov r1, sl
-	strh r0, [r1]
-	mov r4, sp
-	strh r3, [r4, #4]
-	ldr r1, [r2]
-	ldr r0, _08017864 @ =0x00000404
-	adds r3, r1, r0
-	movs r0, #0
-	ldrsb r0, [r3, r0]
-	adds r4, r2, #0
-	cmp r0, #0
-	bne _0801784E
-	ldr r2, _08017868 @ =0x00000406
-	adds r0, r1, r2
-	movs r2, #0
-	ldrsb r2, [r0, r2]
-	cmp r2, #0
-	bne _0801784E
-	movs r0, #1
-	strb r0, [r3]
-	ldr r0, [r4]
-	ldr r1, _0801786C @ =0x0000040A
-	adds r0, r0, r1
-	strh r2, [r0]
-_0801784E:
-	ldr r0, [r4]
-	ldr r2, _08017870 @ =0x0000040C
-	adds r0, r0, r2
-	movs r1, #0x28
-	strh r1, [r0]
-	b _08017876
-	.align 2, 0
-_0801785C: .4byte gCurrentPinballGame
-_08017860: .4byte 0x0000FFF0
-_08017864: .4byte 0x00000404
-_08017868: .4byte 0x00000406
-_0801786C: .4byte 0x0000040A
-_08017870: .4byte 0x0000040C
-_08017874:
-	movs r5, #4
-_08017876:
-	adds r0, r5, #0
-	add r1, sp, #4
-	mov r2, sl
-	bl sub_179D0
-	mov r4, sp
-	movs r1, #4
-	ldrsh r0, [r4, r1]
-	add sp, #8
-	pop {r3, r4, r5}
-	mov r8, r3
-	mov sb, r4
-	mov sl, r5
-	pop {r4, r5, r6, r7}
-	pop {r1}
-	bx r1
+    .section .text17898
 
 	thumb_func_start sub_17898
 sub_17898: @ 0x08017898
diff --git a/expected_objs/sub_176B0.o b/expected_objs/sub_176B0.o
deleted file mode 100644
index 19fb5fb..0000000
Binary files a/expected_objs/sub_176B0.o and /dev/null differ
diff --git a/include/functions.h b/include/functions.h
index d770e52..ab5af21 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -394,8 +394,8 @@ extern void sub_1493C(void);
 //extern ? sub_173FC();
 extern void sub_17634(u8);
 //extern ? sub_176B0();
-//extern ? sub_17898();
-//extern ? sub_179D0();
+extern void sub_17898(struct Vector16 *, u16 *, u8 *);
+extern void sub_179D0(u8, u16 *, u16 *);
 //extern ? sub_17C1C();
 //extern ? sub_17F28();
 //extern ? sub_18180();
diff --git a/include/global.h b/include/global.h
index c23277b..aecb56b 100644
--- a/include/global.h
+++ b/include/global.h
@@ -369,9 +369,9 @@ struct PinballGame
     /*0x3FE*/ u8 filler3FE[0x2];
     /*0x400*/ s16 unk400;
     /*0x402*/ s16 unk402;
-    /*0x404*/ u8 unk404;
+    /*0x404*/ s8 unk404;
     /*0x405*/ u8 unk405;
-    /*0x406*/ u8 unk406;
+    /*0x406*/ s8 unk406;
     /*0x407*/ u8 filler407[0x1];
     /*0x408*/ s16 unk408;
     /*0x40A*/ s16 unk40A;
diff --git a/ld_script.txt b/ld_script.txt
index 8c19b26..48ee018 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -48,7 +48,7 @@ SECTIONS
         src/rom_13D24.o(.text);
         asm/rom_11B9C.o(.text14488);
         src/rom_17634.o(.text);
-        asm/rom_11B9C.o(.text176B0);
+        asm/rom_11B9C.o(.text17898);
         src/rom_18784.o(.text);
         src/rom_19B64.o(.text);
         src/rom_19D04.o(.text);
diff --git a/src/rom_17634.c b/src/rom_17634.c
index 4a45baa..766e99e 100644
--- a/src/rom_17634.c
+++ b/src/rom_17634.c
@@ -1,8 +1,8 @@
 #include "global.h"
 
-void sub_17634(u8 param)
+void sub_17634(u8 arg0)
 {
-    switch (param)
+    switch (arg0)
     {
     case 1:
     case 2:
@@ -26,4 +26,72 @@ void sub_17634(u8 param)
     case 15:
         break;
     }
-}
\ No newline at end of file
+}
+
+s16 sub_176B0(struct Vector16 *arg0, u16 *arg1)
+{
+    struct Vector16 vec1;
+    struct Vector16 vec2;
+    u16 sp00;
+    u8 sp02;
+    u16 return_val;
+    s16 unk0;
+    s32 unk1;
+    s32 unk2;
+
+    u32 some_enum;
+    u32 switch_enum;
+
+    return_val = 0;
+    gCurrentPinballGame->ball->unk4 = 0;
+
+    vec1.x = arg0->x / 8;
+    vec1.y = arg0->y / 8;
+    vec2.x = arg0->x % 8;
+    vec2.y = arg0->y % 8;
+    unk1 = vec1.y / 64;
+    unk2 = gCurrentPinballGame->unk24;
+    vec1.y %= 64;
+    unk0 = gUnknown_02031520.unk38[unk2 + unk1][vec1.y * 64 + vec1.x];
+    sp00 = gUnknown_02031520.unk48[unk2 + unk1][unk0 * 64 + vec2.y * 8 + vec2.x];
+    sp02 = gUnknown_02031520.unk58[unk2 + unk1][unk0 * 64 + vec2.y * 8 + vec2.x];
+
+    sub_17898(arg0, &sp00, &sp02);
+    switch_enum = sp02 & 0xF;
+    some_enum = sp02 >> 4;
+
+    switch (switch_enum)
+    {
+    case 1:
+    case 4:
+    case 6:
+        gCurrentPinballGame->unk23 = switch_enum - 1;
+        gCurrentPinballGame->unk22 = 1;
+        *arg1 = sp00;
+        return_val = 1;
+        break;
+    case 2:
+    case 3:
+        gCurrentPinballGame->unk23 = 0;
+        gCurrentPinballGame->unk22 = 1;
+        *arg1 = sp00 & 0x0000FFF0;
+        return_val = 1;
+        if (gCurrentPinballGame->unk404 == 0)
+        {
+            s32 unk3 = gCurrentPinballGame->unk406;
+            if (unk3 == 0)
+            {
+                gCurrentPinballGame->unk404 = 1;
+                gCurrentPinballGame->unk40A = unk3;
+            }
+        }
+        gCurrentPinballGame->unk40C = 40;
+        break;
+    case 5:
+        some_enum = 4;
+        break;
+    }
+
+    sub_179D0(some_enum, &return_val, arg1);
+    return return_val;
+}