diff --git a/src/game/game_016100.c b/src/game/game_016100.c
index 434e6bbea..72a464d93 100644
--- a/src/game/game_016100.c
+++ b/src/game/game_016100.c
@@ -4810,7 +4810,7 @@ glabel var7f1a84c0
 /*  f01a430:	0c002ee8 */ 	jal	func0000bba0
 /*  f01a434:	240500dc */ 	addiu	$a1,$zero,0xdc
 /*  f01a438:	24040140 */ 	addiu	$a0,$zero,0x140
-/*  f01a43c:	0fc4a2a7 */ 	jal	func0f128a9c
+/*  f01a43c:	0fc4a2a7 */ 	jal	currentPlayerSetViewSize
 /*  f01a440:	240500dc */ 	addiu	$a1,$zero,0xdc
 /*  f01a444:	24040140 */ 	addiu	$a0,$zero,0x140
 /*  f01a448:	0c002f0a */ 	jal	func0000bc28
@@ -5156,14 +5156,14 @@ glabel var7f1a851c
 /*  f01a854:	24040240 */ 	addiu	$a0,$zero,0x240
 /*  f01a858:	3c058006 */ 	lui	$a1,%hi(var800624a0)
 /*  f01a85c:	84a524a0 */ 	lh	$a1,%lo(var800624a0)($a1)
-/*  f01a860:	0fc4a2a7 */ 	jal	func0f128a9c
+/*  f01a860:	0fc4a2a7 */ 	jal	currentPlayerSetViewSize
 /*  f01a864:	24040240 */ 	addiu	$a0,$zero,0x240
 /*  f01a868:	3c058006 */ 	lui	$a1,%hi(var800624a0)
 /*  f01a86c:	84a524a0 */ 	lh	$a1,%lo(var800624a0)($a1)
 /*  f01a870:	0c002f0a */ 	jal	func0000bc28
 /*  f01a874:	24040240 */ 	addiu	$a0,$zero,0x240
 /*  f01a878:	00002025 */ 	or	$a0,$zero,$zero
-/*  f01a87c:	0fc4a2ae */ 	jal	func0f128ab8
+/*  f01a87c:	0fc4a2ae */ 	jal	currentPlayerSetViewPosition
 /*  f01a880:	00002825 */ 	or	$a1,$zero,$zero
 /*  f01a884:	00002025 */ 	or	$a0,$zero,$zero
 /*  f01a888:	0c002f2a */ 	jal	func0000bca8
@@ -5588,14 +5588,14 @@ glabel func0f01adb8
 /*  f01ade4:	24040240 */ 	addiu	$a0,$zero,0x240
 /*  f01ade8:	3c058006 */ 	lui	$a1,%hi(var800624a0)
 /*  f01adec:	84a524a0 */ 	lh	$a1,%lo(var800624a0)($a1)
-/*  f01adf0:	0fc4a2a7 */ 	jal	func0f128a9c
+/*  f01adf0:	0fc4a2a7 */ 	jal	currentPlayerSetViewSize
 /*  f01adf4:	24040240 */ 	addiu	$a0,$zero,0x240
 /*  f01adf8:	3c058006 */ 	lui	$a1,%hi(var800624a0)
 /*  f01adfc:	84a524a0 */ 	lh	$a1,%lo(var800624a0)($a1)
 /*  f01ae00:	0c002f0a */ 	jal	func0000bc28
 /*  f01ae04:	24040240 */ 	addiu	$a0,$zero,0x240
 /*  f01ae08:	00002025 */ 	or	$a0,$zero,$zero
-/*  f01ae0c:	0fc4a2ae */ 	jal	func0f128ab8
+/*  f01ae0c:	0fc4a2ae */ 	jal	currentPlayerSetViewPosition
 /*  f01ae10:	00002825 */ 	or	$a1,$zero,$zero
 /*  f01ae14:	00002025 */ 	or	$a0,$zero,$zero
 /*  f01ae18:	0c002f2a */ 	jal	func0000bca8
diff --git a/src/game/game_0b63b0.c b/src/game/game_0b63b0.c
index 5e24cb1f1..7da43ba9d 100644
--- a/src/game/game_0b63b0.c
+++ b/src/game/game_0b63b0.c
@@ -8388,7 +8388,7 @@ glabel func0f0bd764
 /*  f0bd7b0:	0fc2f2a8 */ 	jal	func0f0bcaa0
 /*  f0bd7b4:	01c08025 */ 	or	$s0,$t6,$zero
 /*  f0bd7b8:	02002025 */ 	or	$a0,$s0,$zero
-/*  f0bd7bc:	0fc4a2a7 */ 	jal	func0f128a9c
+/*  f0bd7bc:	0fc4a2a7 */ 	jal	currentPlayerSetViewSize
 /*  f0bd7c0:	00402825 */ 	or	$a1,$v0,$zero
 /*  f0bd7c4:	0fc2f1eb */ 	jal	func0f0bc7ac
 /*  f0bd7c8:	00000000 */ 	sll	$zero,$zero,0x0
@@ -8397,7 +8397,7 @@ glabel func0f0bd764
 /*  f0bd7d4:	0fc2f389 */ 	jal	func0f0bce24
 /*  f0bd7d8:	01e08025 */ 	or	$s0,$t7,$zero
 /*  f0bd7dc:	02002025 */ 	or	$a0,$s0,$zero
-/*  f0bd7e0:	0fc4a2ae */ 	jal	func0f128ab8
+/*  f0bd7e0:	0fc4a2ae */ 	jal	currentPlayerSetViewPosition
 /*  f0bd7e4:	00402825 */ 	or	$a1,$v0,$zero
 /*  f0bd7e8:	3c188007 */ 	lui	$t8,%hi(var800706c8)
 /*  f0bd7ec:	8f1806c8 */ 	lw	$t8,%lo(var800706c8)($t8)
@@ -8638,7 +8638,7 @@ glabel var7f1ad6ac
 /*  f0bdaec:	0fc2f2a8 */ 	jal	func0f0bcaa0
 /*  f0bdaf0:	01a08025 */ 	or	$s0,$t5,$zero
 /*  f0bdaf4:	02002025 */ 	or	$a0,$s0,$zero
-/*  f0bdaf8:	0fc4a2a7 */ 	jal	func0f128a9c
+/*  f0bdaf8:	0fc4a2a7 */ 	jal	currentPlayerSetViewSize
 /*  f0bdafc:	00402825 */ 	or	$a1,$v0,$zero
 /*  f0bdb00:	0fc2f1eb */ 	jal	func0f0bc7ac
 /*  f0bdb04:	00000000 */ 	sll	$zero,$zero,0x0
@@ -8647,7 +8647,7 @@ glabel var7f1ad6ac
 /*  f0bdb10:	0fc2f389 */ 	jal	func0f0bce24
 /*  f0bdb14:	01c08025 */ 	or	$s0,$t6,$zero
 /*  f0bdb18:	02002025 */ 	or	$a0,$s0,$zero
-/*  f0bdb1c:	0fc4a2ae */ 	jal	func0f128ab8
+/*  f0bdb1c:	0fc4a2ae */ 	jal	currentPlayerSetViewPosition
 /*  f0bdb20:	00402825 */ 	or	$a1,$v0,$zero
 /*  f0bdb24:	8e2f0000 */ 	lw	$t7,0x0($s1)
 /*  f0bdb28:	3c048007 */ 	lui	$a0,%hi(var800705c0+0x10)
diff --git a/src/game/game_127910.c b/src/game/game_127910.c
index c7a6b0f28..a7e46fa57 100644
--- a/src/game/game_127910.c
+++ b/src/game/game_127910.c
@@ -87,11 +87,11 @@ void playersAllocate(s32 count)
 		if (g_Vars.unk0004e0) {
 			s16 a = func0f0bc44c();
 			s16 b = func0f0bc478();
-			func0f128a9c(a, b << 1);
+			currentPlayerSetViewSize(a, b << 1);
 		} else {
 			s16 a = func0f0bc44c();
 			s16 b = func0f0bc478();
-			func0f128a9c(a, b);
+			currentPlayerSetViewSize(a, b);
 		}
 
 		g_Vars.coop = NULL;
@@ -1235,16 +1235,16 @@ glabel propGetPlayerNum
 /*  f128a98:	27bd0008 */ 	addiu	$sp,$sp,0x8
 );
 
-void func0f128a9c(u32 arg0, u32 arg1)
+void currentPlayerSetViewSize(s32 viewx, s32 viewy)
 {
-	g_Vars.currentplayer->unk0630 = arg0;
-	g_Vars.currentplayer->unk0632 = arg1;
+	g_Vars.currentplayer->viewx = viewx;
+	g_Vars.currentplayer->viewy = viewy;
 }
 
-void func0f128ab8(u32 arg0, u32 arg1)
+void currentPlayerSetViewPosition(s32 viewleft, s32 viewtop)
 {
-	g_Vars.currentplayer->unk0634 = arg0;
-	g_Vars.currentplayer->unk0636 = arg1;
+	g_Vars.currentplayer->viewleft = viewleft;
+	g_Vars.currentplayer->viewtop = viewtop;
 }
 
 void currentPlayerSetFovY(f32 fovy)
diff --git a/src/game/game_157db0.c b/src/game/game_157db0.c
index 0cf2192e7..e13d09af6 100644
--- a/src/game/game_157db0.c
+++ b/src/game/game_157db0.c
@@ -5476,25 +5476,14 @@ glabel func0f15cae0
 /*  f15cb70:	c7000004 */ 	lwc1	$f0,0x4($t8)
 );
 
-GLOBAL_ASM(
-glabel func0f15cb74
-/*  f15cb74:	3c02800a */ 	lui	$v0,%hi(g_Vars+0x284)
-/*  f15cb78:	8c42a244 */ 	lw	$v0,%lo(g_Vars+0x284)($v0)
-/*  f15cb7c:	27bdffe0 */ 	addiu	$sp,$sp,-32
-/*  f15cb80:	afbf001c */ 	sw	$ra,0x1c($sp)
-/*  f15cb84:	844f0632 */ 	lh	$t7,0x632($v0)
-/*  f15cb88:	84460636 */ 	lh	$a2,0x636($v0)
-/*  f15cb8c:	844e0630 */ 	lh	$t6,0x630($v0)
-/*  f15cb90:	84450634 */ 	lh	$a1,0x634($v0)
-/*  f15cb94:	00cfc021 */ 	addu	$t8,$a2,$t7
-/*  f15cb98:	afb80010 */ 	sw	$t8,0x10($sp)
-/*  f15cb9c:	0fc57306 */ 	jal	func0f15cc18
-/*  f15cba0:	00ae3821 */ 	addu	$a3,$a1,$t6
-/*  f15cba4:	8fbf001c */ 	lw	$ra,0x1c($sp)
-/*  f15cba8:	27bd0020 */ 	addiu	$sp,$sp,0x20
-/*  f15cbac:	03e00008 */ 	jr	$ra
-/*  f15cbb0:	00000000 */ 	sll	$zero,$zero,0x0
-);
+Gfx *func0f15cb74(Gfx *gdl)
+{
+	return func0f15cc18(gdl,
+			g_Vars.currentplayer->viewleft,
+			g_Vars.currentplayer->viewtop,
+			g_Vars.currentplayer->viewleft + g_Vars.currentplayer->viewx,
+			g_Vars.currentplayer->viewtop + g_Vars.currentplayer->viewy);
+}
 
 GLOBAL_ASM(
 glabel func0f15cbb4
diff --git a/src/gvars/gvars.c b/src/gvars/gvars.c
index 6d06081fc..eccb925c3 100644
--- a/src/gvars/gvars.c
+++ b/src/gvars/gvars.c
@@ -21403,28 +21403,7 @@ u32 var800acc78 = 0;
 u32 var800acc7c = 0;
 struct chrdata *g_MpSimulantChrs[MAX_SIMULANTS] = {NULL};
 u8 var800acca0[40] = {0};
-u8 g_MpChallengesCompleted[4] = {0}; // This is one *byte* per option, and length is unknown
-u32 var800acccc = 0;
-u32 var800accd0 = 0;
-u32 var800accd4 = 0;
-u32 var800accd8 = 0;
-u32 var800accdc = 0;
-u32 var800acce0 = 0;
-u32 var800acce4 = 0;
-u32 var800acce8 = 0;
-u32 var800accec = 0;
-u32 var800accf0 = 0;
-u32 var800accf4 = 0;
-u32 var800accf8 = 0;
-u32 var800accfc = 0;
-u32 var800acd00 = 0;
-u32 var800acd04 = 0;
-u32 var800acd08 = 0;
-u32 var800acd0c = 0;
-u32 var800acd10 = 0;
-u32 var800acd14 = 0;
-u32 var800acd18 = 0;
-u32 var800acd1c = 0;
+u8 g_MpChallengesCompleted[88] = {0}; // This is one *byte* per challenge, and length is at least 64
 struct frdata g_FiringRangeData = {0};
 struct trainingdata g_DeviceTrainingData = {0};
 struct trainingdata g_HoloTrainingData = {0};
diff --git a/src/include/game/game_127910.h b/src/include/game/game_127910.h
index 523c1fed1..07951d4da 100644
--- a/src/include/game/game_127910.h
+++ b/src/include/game/game_127910.h
@@ -9,8 +9,8 @@ void playersAllocate(s32 count);
 void playerAllocate(u32 index);
 void currentPlayerCalculateAiBuddyNums(void);
 u32 propGetPlayerNum(struct prop *prop);
-void func0f128a9c(u32 arg0, u32 arg1);
-void func0f128ab8(u32 arg0, u32 arg1);
+void currentPlayerSetViewSize(s32 viewx, s32 viewy);
+void currentPlayerSetViewPosition(s32 viewleft, s32 viewtop);
 void currentPlayerSetFovY(f32 fovy);
 void currentPlayerSetAspectRatio(f32 aspect);
 s32 weaponGetModel(s32 arg0);
diff --git a/src/include/game/game_157db0.h b/src/include/game/game_157db0.h
index 14dbbfdbc..b9af138ad 100644
--- a/src/include/game/game_157db0.h
+++ b/src/include/game/game_157db0.h
@@ -33,9 +33,9 @@ void currentPlayerSetScaleBg2Gfx(f32 arg0);
 void func0f15c920(void);
 u32 func0f15ca00(void);
 u32 func0f15cae0(void);
-u32 func0f15cb74(void);
+Gfx *func0f15cb74(Gfx *gdl);
 u32 func0f15cbb4(void);
-u32 func0f15cc18(void);
+Gfx *func0f15cc18(Gfx *gdl, s32 viewleft, s32 viewtop, s32 arg3, s32 arg4);
 void func0f15cd28(void);
 bool func0f15cd90(u32 room, struct screenbox *arg1);
 bool func0f15d08c(struct coord *a, struct coord *b);
diff --git a/src/include/types.h b/src/include/types.h
index d9fa92280..b546c4dec 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -1970,10 +1970,10 @@ struct player {
 	/*0x0624*/ u32 unk0624;
 	/*0x0628*/ u32 unk0628;
 	/*0x062c*/ u32 unk062c;
-	/*0x0630*/ u16 unk0630;
-	/*0x0632*/ u16 unk0632;
-	/*0x0634*/ u16 unk0634;
-	/*0x0636*/ u16 unk0636;
+	/*0x0630*/ s16 viewx;    // 320 lo-res, 640 hi-res
+	/*0x0632*/ s16 viewy;    // 220 regardless of res
+	/*0x0634*/ s16 viewleft; // 0
+	/*0x0636*/ s16 viewtop;  // 0
 	/*0x0638*/ struct player638 unk0638[2];
 	/*0x1580*/ s8 unk1580;
 	/*0x1581*/ u8 unk1581;