diff --git a/asm/rom_14740.s b/asm/rom_14740.s
index c230c09..1097ccb 100644
--- a/asm/rom_14740.s
+++ b/asm/rom_14740.s
@@ -2175,569 +2175,3 @@ _080171B8:
 	bx r0
 	.align 2, 0
 _080171C4: .4byte 0x00000306
-
-	thumb_func_start COLLISION_CHECK_DUSCLOPS_171C8
-COLLISION_CHECK_DUSCLOPS_171C8: @ 0x080171C8
-	push {r4, r5, r6, r7, lr}
-	mov r7, sl
-	mov r6, sb
-	mov r5, r8
-	push {r5, r6, r7}
-	sub sp, #8
-	mov sb, r0
-	mov r8, r1
-	add r2, sp, #4
-	movs r1, #0
-	strh r1, [r2]
-	ldr r0, _080172CC @ =gCurrentPinballGame
-	ldr r0, [r0]
-	mov sl, r0
-	ldr r0, _080172D0 @ =0x0000132C
-	add r0, sl
-	ldr r0, [r0]
-	strh r1, [r0, #4]
-	mov r0, sb
-	movs r1, #0
-	ldrsh r4, [r0, r1]
-	adds r0, r4, #0
-	cmp r4, #0
-	bge _080171FA
-	adds r0, r4, #7
-_080171FA:
-	asrs r1, r0, #3
-	lsls r0, r1, #0x10
-	lsrs r0, r0, #0x10
-	ldr r2, _080172D4 @ =0xFFFF0000
-	mov ip, r2
-	ands r5, r2
-	orrs r5, r0
-	mov r7, sb
-	movs r0, #2
-	ldrsh r3, [r7, r0]
-	adds r0, r3, #0
-	cmp r3, #0
-	bge _08017216
-	adds r0, r3, #7
-_08017216:
-	asrs r0, r0, #3
-	lsls r2, r0, #0x10
-	ldr r7, _080172D8 @ =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 _08017242
-	adds r2, #0x3f
-_08017242:
-	asrs r2, r2, #6
-	mov r0, sl
-	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 r7, _080172DC @ =gUnknown_02031520
-	mov ip, r7
-	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, sb
-	mov r1, sp
-	adds r2, r4, #0
-	bl sub_173FC
-	ldrb r0, [r4]
-	movs r3, #0xf
-	ands r3, r0
-	lsrs r6, r0, #4
-	subs r0, r3, #1
-	cmp r0, #5
-	bls _080172C0
-	b _080173DA
-_080172C0:
-	lsls r0, r0, #2
-	ldr r1, _080172E0 @ =_080172E4
-	adds r0, r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080172CC: .4byte gCurrentPinballGame
-_080172D0: .4byte 0x0000132C
-_080172D4: .4byte 0xFFFF0000
-_080172D8: .4byte 0x0000FFFF
-_080172DC: .4byte gUnknown_02031520
-_080172E0: .4byte _080172E4
-_080172E4: @ jump table
-	.4byte _080172FC @ case 0
-	.4byte _080173A8 @ case 1
-	.4byte _080173A8 @ case 2
-	.4byte _080172FC @ case 3
-	.4byte _080173D8 @ case 4
-	.4byte _080172FC @ case 5
-_080172FC:
-	ldr r2, _08017374 @ =gCurrentPinballGame
-	ldr r0, [r2]
-	subs r1, r3, #1
-	adds r0, #0x23
-	strb r1, [r0]
-	ldr r0, [r2]
-	adds r0, #0x22
-	movs r5, #1
-	strb r5, [r0]
-	mov r0, sp
-	ldrh r0, [r0]
-	mov r1, r8
-	strh r0, [r1]
-	ldr r4, _08017378 @ =0xFFFFC010
-	adds r0, r0, r4
-	lsls r0, r0, #0x10
-	lsrs r0, r0, #0x10
-	cmp r0, #0x20
-	bhi _0801739C
-	ldr r0, [r2]
-	ldr r7, _0801737C @ =0x0000132C
-	adds r3, r0, r7
-	ldr r2, [r3]
-	movs r0, #0x10
-	ldrsh r1, [r2, r0]
-	ldr r4, _08017380 @ =gUnknown_02031520
-	movs r7, #0x26
-	ldrsh r0, [r4, r7]
-	subs r0, #8
-	cmp r1, r0
-	blt _08017348
-	movs r0, #0x12
-	ldrsh r1, [r2, r0]
-	movs r7, #0x28
-	ldrsh r0, [r4, r7]
-	subs r0, #8
-	cmp r1, r0
-	bge _0801739C
-_08017348:
-	movs r1, #6
-	ldrsh r0, [r2, r1]
-	cmp r0, #0
-	bgt _08017366
-	cmp r0, #0
-	bne _08017392
-	ldr r0, _08017384 @ =gMain
-	ldr r0, [r0, #0x4c]
-	ands r0, r5
-	cmp r0, #0
-	beq _08017388
-	movs r0, #0x28
-	strh r0, [r2, #4]
-	ldr r0, [r3]
-	strh r5, [r0, #6]
-_08017366:
-	movs r2, #0xf8
-	lsls r2, r2, #6
-	adds r0, r2, #0
-	mov r4, r8
-	strh r0, [r4]
-	b _0801739C
-	.align 2, 0
-_08017374: .4byte gCurrentPinballGame
-_08017378: .4byte 0xFFFFC010
-_0801737C: .4byte 0x0000132C
-_08017380: .4byte gUnknown_02031520
-_08017384: .4byte gMain
-_08017388:
-	ldr r0, _080173A4 @ =0x0000FFD8
-	strh r0, [r2, #4]
-	ldr r1, [r3]
-	adds r0, #0x27
-	strh r0, [r1, #6]
-_08017392:
-	movs r7, #0x82
-	lsls r7, r7, #7
-	adds r0, r7, #0
-	mov r1, r8
-	strh r0, [r1]
-_0801739C:
-	movs r0, #1
-	mov r2, sp
-	strh r0, [r2, #4]
-	b _080173DA
-	.align 2, 0
-_080173A4: .4byte 0x0000FFD8
-_080173A8:
-	ldr r2, _080173D0 @ =gCurrentPinballGame
-	ldr r0, [r2]
-	subs r1, r3, #1
-	adds r0, #0x23
-	strb r1, [r0]
-	ldr r0, [r2]
-	adds r0, #0x22
-	movs r1, #2
-	strb r1, [r0]
-	mov r0, sp
-	ldrh r1, [r0]
-	ldr r0, _080173D4 @ =0x0000FFF0
-	ands r0, r1
-	mov r4, r8
-	strh r0, [r4]
-	movs r0, #1
-	mov r7, sp
-	strh r0, [r7, #4]
-	b _080173DA
-	.align 2, 0
-_080173D0: .4byte gCurrentPinballGame
-_080173D4: .4byte 0x0000FFF0
-_080173D8:
-	movs r6, #4
-_080173DA:
-	adds r0, r6, #0
-	add r1, sp, #4
-	mov r2, r8
-	bl sub_17634
-	mov r1, sp
-	movs r2, #4
-	ldrsh r0, [r1, r2]
-	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
-
-	thumb_func_start sub_173FC
-sub_173FC: @ 0x080173FC
-	push {r4, r5, r6, r7, lr}
-	mov r7, sb
-	mov r6, r8
-	push {r6, r7}
-	adds r6, r0, #0
-	mov sb, r1
-	mov ip, r2
-	movs r7, #0
-	movs r3, #0
-	ldr r1, _08017494 @ =gCurrentPinballGame
-	ldr r5, [r1]
-	ldr r2, _08017498 @ =0x00000387
-	adds r0, r5, r2
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	mov r8, r1
-	cmp r0, #2
-	bne _080174C0
-	mov r1, ip
-	ldrb r0, [r1]
-	cmp r0, #0
-	beq _0801742C
-	b _080175FE
-_0801742C:
-	adds r2, #0x69
-	adds r0, r5, r2
-	ldrh r2, [r6]
-	ldrh r0, [r0]
-	subs r2, r2, r0
-	ldr r0, _0801749C @ =0x000003F2
-	adds r1, r5, r0
-	ldrh r0, [r6, #2]
-	ldrh r1, [r1]
-	subs r0, r0, r1
-	lsls r0, r0, #0x10
-	lsrs r1, r0, #0x10
-	lsls r3, r2, #0x10
-	lsrs r0, r3, #0x10
-	cmp r0, #0x5f
-	bls _0801744E
-	b _080175FE
-_0801744E:
-	lsls r1, r1, #0x10
-	lsrs r0, r1, #0x10
-	cmp r0, #0x77
-	bls _08017458
-	b _080175FE
-_08017458:
-	ldr r2, _080174A0 @ =gUnknown_083071D4
-	asrs r1, r1, #0x10
-	lsls r0, r1, #1
-	adds r0, r0, r1
-	lsls r0, r0, #5
-	asrs r1, r3, #0x10
-	adds r0, r0, r1
-	lsls r0, r0, #1
-	adds r0, r0, r2
-	ldrh r0, [r0]
-	ldr r7, _080174A4 @ =0x0000FFF0
-	ands r7, r0
-	movs r3, #0xf
-	ands r3, r0
-	cmp r3, #0
-	bne _0801747A
-	b _080175FE
-_0801747A:
-	movs r1, #0xf7
-	lsls r1, r1, #2
-	adds r0, r5, r1
-	ldrb r0, [r0]
-	subs r0, #3
-	lsls r0, r0, #0x18
-	lsrs r0, r0, #0x18
-	cmp r0, #1
-	bhi _080174A8
-	movs r0, #1
-	mov r2, ip
-	strb r0, [r2]
-	b _080174AC
-	.align 2, 0
-_08017494: .4byte gCurrentPinballGame
-_08017498: .4byte 0x00000387
-_0801749C: .4byte 0x000003F2
-_080174A0: .4byte gUnknown_083071D4
-_080174A4: .4byte 0x0000FFF0
-_080174A8:
-	mov r0, ip
-	strb r3, [r0]
-_080174AC:
-	mov r1, r8
-	ldr r0, [r1]
-	movs r2, #0xf7
-	lsls r2, r2, #2
-	adds r0, r0, r2
-	movs r1, #4
-	strb r1, [r0]
-	mov r0, sb
-	strh r7, [r0]
-	b _080175FE
-_080174C0:
-	cmp r0, #1
-	beq _080174C6
-	b _080175FE
-_080174C6:
-	mov r1, ip
-	ldrb r0, [r1]
-	cmp r0, #0
-	beq _080174D0
-	b _080175FE
-_080174D0:
-	ldr r2, _0801760C @ =0x000003A9
-	adds r0, r5, r2
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0
-	beq _0801752C
-	movs r1, #0xf4
-	lsls r1, r1, #2
-	adds r0, r5, r1
-	ldrh r2, [r6]
-	ldrh r0, [r0]
-	subs r2, r2, r0
-	ldr r0, _08017610 @ =0x000003D2
-	adds r1, r5, r0
-	ldrh r0, [r6, #2]
-	ldrh r1, [r1]
-	subs r0, r0, r1
-	lsls r0, r0, #0x10
-	lsrs r1, r0, #0x10
-	lsls r4, r2, #0x10
-	lsrs r0, r4, #0x10
-	cmp r0, #0x3f
-	bhi _0801752C
-	lsls r1, r1, #0x10
-	lsrs r0, r1, #0x10
-	cmp r0, #0x3f
-	bhi _0801752C
-	ldr r2, _08017614 @ =gUnknown_08252B10
-	asrs r0, r1, #0xa
-	asrs r1, r4, #0x10
-	adds r0, r0, r1
-	lsls r0, r0, #1
-	adds r0, r0, r2
-	ldrh r0, [r0]
-	ldr r7, _08017618 @ =0x0000FFF0
-	ands r7, r0
-	movs r3, #0xf
-	ands r3, r0
-	cmp r3, #0
-	beq _08017530
-	movs r2, #0xe8
-	lsls r2, r2, #2
-	adds r1, r5, r2
-	movs r0, #4
-	strb r0, [r1]
-_0801752C:
-	cmp r3, #0
-	bne _080175F4
-_08017530:
-	mov r0, r8
-	ldr r5, [r0]
-	ldr r1, _0801761C @ =0x000003AA
-	adds r0, r5, r1
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0
-	beq _0801758E
-	movs r2, #0xf5
-	lsls r2, r2, #2
-	adds r0, r5, r2
-	ldrh r2, [r6]
-	ldrh r0, [r0]
-	subs r2, r2, r0
-	ldr r0, _08017620 @ =0x000003D6
-	adds r1, r5, r0
-	ldrh r0, [r6, #2]
-	ldrh r1, [r1]
-	subs r0, r0, r1
-	lsls r0, r0, #0x10
-	lsrs r1, r0, #0x10
-	lsls r4, r2, #0x10
-	lsrs r0, r4, #0x10
-	cmp r0, #0x3f
-	bhi _0801758E
-	lsls r1, r1, #0x10
-	lsrs r0, r1, #0x10
-	cmp r0, #0x3f
-	bhi _0801758E
-	ldr r2, _08017614 @ =gUnknown_08252B10
-	asrs r0, r1, #0xa
-	asrs r1, r4, #0x10
-	adds r0, r0, r1
-	lsls r0, r0, #1
-	adds r0, r0, r2
-	ldrh r0, [r0]
-	ldr r7, _08017618 @ =0x0000FFF0
-	ands r7, r0
-	movs r3, #0xf
-	ands r3, r0
-	cmp r3, #0
-	beq _08017592
-	ldr r2, _08017624 @ =0x000003A1
-	adds r1, r5, r2
-	movs r0, #4
-	strb r0, [r1]
-_0801758E:
-	cmp r3, #0
-	bne _080175F4
-_08017592:
-	mov r0, r8
-	ldr r5, [r0]
-	ldr r1, _08017628 @ =0x000003AB
-	adds r0, r5, r1
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #0
-	beq _080175F0
-	movs r2, #0xf6
-	lsls r2, r2, #2
-	adds r0, r5, r2
-	ldrh r2, [r6]
-	ldrh r0, [r0]
-	subs r2, r2, r0
-	ldr r0, _0801762C @ =0x000003DA
-	adds r1, r5, r0
-	ldrh r0, [r6, #2]
-	ldrh r1, [r1]
-	subs r0, r0, r1
-	lsls r0, r0, #0x10
-	lsrs r1, r0, #0x10
-	lsls r4, r2, #0x10
-	lsrs r0, r4, #0x10
-	cmp r0, #0x3f
-	bhi _080175F0
-	lsls r1, r1, #0x10
-	lsrs r0, r1, #0x10
-	cmp r0, #0x3f
-	bhi _080175F0
-	ldr r2, _08017614 @ =gUnknown_08252B10
-	asrs r0, r1, #0xa
-	asrs r1, r4, #0x10
-	adds r0, r0, r1
-	lsls r0, r0, #1
-	adds r0, r0, r2
-	ldrh r0, [r0]
-	ldr r7, _08017618 @ =0x0000FFF0
-	ands r7, r0
-	movs r3, #0xf
-	ands r3, r0
-	cmp r3, #0
-	beq _080175FE
-	ldr r2, _08017630 @ =0x000003A2
-	adds r1, r5, r2
-	movs r0, #4
-	strb r0, [r1]
-_080175F0:
-	cmp r3, #0
-	beq _080175FE
-_080175F4:
-	mov r0, sb
-	strh r7, [r0]
-	movs r0, #6
-	mov r1, ip
-	strb r0, [r1]
-_080175FE:
-	pop {r3, r4}
-	mov r8, r3
-	mov sb, r4
-	pop {r4, r5, r6, r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0801760C: .4byte 0x000003A9
-_08017610: .4byte 0x000003D2
-_08017614: .4byte gUnknown_08252B10
-_08017618: .4byte 0x0000FFF0
-_0801761C: .4byte 0x000003AA
-_08017620: .4byte 0x000003D6
-_08017624: .4byte 0x000003A1
-_08017628: .4byte 0x000003AB
-_0801762C: .4byte 0x000003DA
-_08017630: .4byte 0x000003A2
diff --git a/expected_objs/sub_171C8.o b/expected_objs/sub_171C8.o
deleted file mode 100644
index 5451d49..0000000
Binary files a/expected_objs/sub_171C8.o and /dev/null differ
diff --git a/expected_objs/sub_173FC.o b/expected_objs/sub_173FC.o
deleted file mode 100644
index c41954b..0000000
Binary files a/expected_objs/sub_173FC.o and /dev/null differ
diff --git a/include/functions.h b/include/functions.h
index 5ce17ed..33c156d 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -391,8 +391,8 @@ void sub_153CC(s32, s16*, u16*);
 //extern ? sub_162B8();
 //extern ? sub_1642C();
 //extern ? COLLISION_CHECK_DUSCLOPS_171C8();
-//extern ? sub_173FC();
-extern void sub_17634(u8);
+void sub_173FC(struct Vector16 *arg0, s16* arg1, u8* arg2);
+extern void sub_17634(u8, u16*, u16*);
 //extern ? COLLISION_CHECK_KECLEON_176B0();
 extern void sub_17898(struct Vector16 *, u16 *, u8 *);
 extern void sub_179D0(u8, u16 *, u16 *);
diff --git a/include/global.h b/include/global.h
index 1f3ee12..1b1b653 100644
--- a/include/global.h
+++ b/include/global.h
@@ -503,7 +503,7 @@ struct PinballGame
     /*0x3A0*/ s8 unk3A0[3];
     /*0x3A3*/ s8 unk3A3[3];
     /*0x3A6*/ s8 unk3A6[3];
-    /*0x3A9*/ u8 unk3A9[3];
+    /*0x3A9*/ s8 unk3A9[3];
     /*0x3AC*/ s8 unk3AC[3];
     /*0x3B0*/ u16 unk3B0[3];
     /*0x3B6*/ u16 unk3B6[3];
@@ -962,4 +962,7 @@ extern u8 gUnknown_081B4784[];
 extern const u16 gUnknown_086AD000[][4];
 extern u32 gUnknown_086AD50C[];
 
+extern const u16 gUnknown_08252B10[];
+extern const u16 gUnknown_083071D4[];
+
 #endif // GUARD_GLOBAL_H
\ No newline at end of file
diff --git a/src/rom_14740.c b/src/rom_14740.c
index 157bae0..430e3c3 100644
--- a/src/rom_14740.c
+++ b/src/rom_14740.c
@@ -3,7 +3,6 @@
 #include "m4a.h"
 #include "constants/bg_music.h"
 
-extern const u16 gUnknown_08252B10[];
 extern const u16 gUnknown_08254B10[];
 extern const u16 gUnknown_08257390[];
 extern const u16 gUnknown_08259C10[];
diff --git a/src/rom_17634.c b/src/rom_17634.c
index da60eb3..daa8240 100644
--- a/src/rom_17634.c
+++ b/src/rom_17634.c
@@ -1,7 +1,204 @@
 #include "global.h"
 #include "main.h"
 
-void sub_17634(u8 arg0)
+
+s16 COLLISION_CHECK_DUSCLOPS_171C8(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.unk14.unk38[unk2 + unk1][vec1.y * 64 + vec1.x];
+    sp00 = gUnknown_02031520.unk14.unk48[unk2 + unk1][unk0 * 64 + vec2.y * 8 + vec2.x];
+    sp02 = gUnknown_02031520.unk14.unk58[unk2 + unk1][unk0 * 64 + vec2.y * 8 + vec2.x];
+
+    sub_173FC(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;
+        if (*arg1 >= 0x3FF0 && *arg1 <= 0x4010)
+        {
+            if (gCurrentPinballGame->ball->positionQ0.x < gUnknown_02031520.unk14.unk26 - 8 ||
+                gCurrentPinballGame->ball->positionQ0.y < gUnknown_02031520.unk14.unk28 - 8)
+            {
+
+                if (gCurrentPinballGame->ball->unk6 > 0)
+                {
+                    *arg1 = 0x3E00;
+                }
+                else if (gCurrentPinballGame->ball->unk6 != 0)
+                {
+                    *arg1 = 0x4100;
+                }
+                else
+                {
+                    if (gMain.systemFrameCount & 1)
+                    {
+                        gCurrentPinballGame->ball->unk4 = 0x28;
+                        gCurrentPinballGame->ball->unk6 = 1;
+                        *arg1 = 0x3E00;
+                    }
+                    else
+                    {
+                        gCurrentPinballGame->ball->unk4 = 0xFFD8;
+                        gCurrentPinballGame->ball->unk6 = 0xFFFF;
+                        *arg1 = 0x4100;
+                    }
+                }
+
+            }
+        }
+        return_val = 1;
+        break;
+    case 2:
+    case 3:
+        gCurrentPinballGame->unk23 = switch_enum - 1;
+        gCurrentPinballGame->unk22 = 2;
+        *arg1 = sp00 & 0x0000FFF0;
+        return_val = 1;
+        break;
+    case 5:
+        some_enum = 4;
+        break;
+    }
+
+    sub_17634(some_enum, &return_val, arg1);
+    return return_val;
+}
+
+void sub_173FC(struct Vector16 *arg0, s16* arg1, u8* arg2) {
+    s16 deltaX;
+    s16 deltaY;
+    u16 maskedResult;
+    u8 lowerNibble;
+    u8 temp;
+
+    maskedResult = 0;
+    lowerNibble = 0;
+    
+    if(gCurrentPinballGame->unk387 == 2) 
+    {
+        if (*arg2 != 0)
+            return;
+        
+        deltaX = arg0->x -gCurrentPinballGame->unk3F0;
+        deltaY = arg0->y -gCurrentPinballGame->unk3F2;
+        
+        if (deltaX > 95U || deltaY > 119U) 
+            return;
+        
+        maskedResult = 0xFFF0 & gUnknown_083071D4[(deltaY * 96 ) + deltaX]; 
+        lowerNibble = 0xF & gUnknown_083071D4[(deltaY * 96 ) + deltaX];
+        
+        if (lowerNibble == 0) 
+            return;
+
+        temp = gCurrentPinballGame->unk3DC -3; 
+        if (temp <= 1U) 
+            *arg2 = 1;
+        else
+            *arg2 = lowerNibble;
+        
+        gCurrentPinballGame->unk3DC = 4;
+        *arg1 = maskedResult;
+        
+        return;
+    }
+    
+    if(gCurrentPinballGame->unk387 == 1)
+    {
+        if (*arg2 != 0)
+            return;
+        
+        if (gCurrentPinballGame->unk3A9[0] != 0) 
+        {
+            deltaX = arg0->x - gCurrentPinballGame->unk3D0[0].x;
+            deltaY = arg0->y - gCurrentPinballGame->unk3D0[0].y;
+            
+            if (deltaX < 64U && deltaY < 64U) 
+            {
+                maskedResult = 0xFFF0 & gUnknown_08252B10[deltaY * 64 + deltaX];
+                lowerNibble = 0xF & gUnknown_08252B10[deltaY * 64 + deltaX];
+                
+                if (lowerNibble != 0)
+                    gCurrentPinballGame->unk3A0[0] = 4;
+            }
+        }
+        
+        if (lowerNibble == 0)
+        {
+            if (gCurrentPinballGame->unk3A9[1] != 0)
+            {
+                deltaX = arg0->x - gCurrentPinballGame->unk3D0[1].x;
+                deltaY = arg0->y - gCurrentPinballGame->unk3D0[1].y;
+                
+                if (deltaX < 64U && deltaY < 64U)
+                {
+                    maskedResult = 0xFFF0 & gUnknown_08252B10[deltaY * 64 + deltaX];
+                    lowerNibble = 0xF & gUnknown_08252B10[deltaY * 64 + deltaX];
+                    
+                    if (lowerNibble != 0)
+                        gCurrentPinballGame->unk3A0[1] = 4;
+                }
+            }
+        }
+        
+        if (lowerNibble == 0)
+        {
+            if ( gCurrentPinballGame->unk3A9[2] != 0)
+            {
+                deltaX = arg0->x - gCurrentPinballGame->unk3D0[2].x;
+                deltaY = arg0->y - gCurrentPinballGame->unk3D0[2].y;
+
+                if (deltaX < 64U && deltaY < 64U)
+                {
+                    maskedResult = 0xFFF0 & gUnknown_08252B10[deltaY * 64 + deltaX];
+                    lowerNibble = 0xF & gUnknown_08252B10[deltaY * 64 + deltaX];
+                    
+                    if (lowerNibble != 0)
+                    {
+                        gCurrentPinballGame->unk3A0[2] = 4;
+                    }
+                }
+            } 
+        }
+        
+        if (lowerNibble != 0)
+        {
+            *arg1 = maskedResult;
+            *arg2 = 6;
+        }                    
+        return;
+    }
+}
+
+
+void sub_17634(u8 arg0, u16 *arg1, u16 *arg2)
 {
     switch (arg0)
     {