diff --git a/src/game/chr/chr.c b/src/game/chr/chr.c
index c278b0853..64dd03c1a 100644
--- a/src/game/chr/chr.c
+++ b/src/game/chr/chr.c
@@ -15495,7 +15495,7 @@ struct prop *chrGetTargetProp(struct chrdata *chr)
 	return ret;
 }
 
-bool chrUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tiletype3 **arg2)
+bool chrUpdateGeometry(struct prop *prop, u8 **start, u8 **end)
 {
 	struct chrdata *chr = prop->chr;
 
@@ -15528,14 +15528,14 @@ bool chrUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tilety
 			chr->geo.width = 15;
 		}
 
-		*arg1 = &chr->geo;
-		*arg2 = *arg1 + 1;
+		*start = (void *) &chr->geo;
+		*end = *start + sizeof(struct tiletype3);
 
 		return true;
 	}
 
-	*arg2 = NULL;
-	*arg1 = NULL;
+	*end = NULL;
+	*start = NULL;
 
 	return false;
 
diff --git a/src/game/game_0b69d0.c b/src/game/game_0b69d0.c
index 84c974007..7269dc461 100644
--- a/src/game/game_0b69d0.c
+++ b/src/game/game_0b69d0.c
@@ -16849,7 +16849,7 @@ void func0f0c1e54(struct prop *prop, bool enable)
 	g_Vars.players[playernum]->bondperimenabled = enable;
 }
 
-bool playerUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tiletype3 **arg2)
+bool playerUpdateGeometry(struct prop *prop, u8 **start, u8 **end)
 {
 	s32 playernum = propGetPlayerNum(prop);
 
@@ -16859,18 +16859,18 @@ bool playerUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct til
 			g_Vars.players[playernum]->perimshoot = g_Vars.players[playernum]->periminfo;
 			g_Vars.players[playernum]->perimshoot.width = 15;
 
-			*arg1 = &g_Vars.players[playernum]->perimshoot;
+			*start = (void *) &g_Vars.players[playernum]->perimshoot;
 		} else {
-			*arg1 = &g_Vars.players[playernum]->periminfo;
+			*start = (void *) &g_Vars.players[playernum]->periminfo;
 		}
 
-		*arg2 = *arg1 + 1;
+		*end = *start + sizeof(struct tiletype3);
 
 		return true;
 	}
 
-	*arg2 = NULL;
-	*arg1 = NULL;
+	*end = NULL;
+	*start = NULL;
 
 	return false;
 }
diff --git a/src/game/prop.c b/src/game/prop.c
index 6eab7cce0..59be940d7 100644
--- a/src/game/prop.c
+++ b/src/game/prop.c
@@ -7780,16 +7780,16 @@ void propGetBbox(struct prop *prop, f32 *width, f32 *ymax, f32 *ymin)
 	}
 }
 
-bool propUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tiletype3 **arg2)
+bool propUpdateGeometry(struct prop *prop, u8 **start, u8 **end)
 {
 	bool result = false;
 
 	if (prop->type == PROPTYPE_PLAYER) {
-		result = playerUpdateGeometry(prop, arg1, arg2);
+		result = playerUpdateGeometry(prop, start, end);
 	} else if (prop->type == PROPTYPE_CHR) {
-		result = chrUpdateGeometry(prop, arg1, arg2);
+		result = chrUpdateGeometry(prop, start, end);
 	} else if (prop->type == PROPTYPE_OBJ || prop->type == PROPTYPE_DOOR) {
-		result = objUpdateGeometry(prop, arg1, arg2);
+		result = objUpdateGeometry(prop, start, end);
 	}
 
 	return result;
diff --git a/src/game/propobj.c b/src/game/propobj.c
index de3c59ce0..755e573ab 100644
--- a/src/game/propobj.c
+++ b/src/game/propobj.c
@@ -47876,7 +47876,7 @@ s32 objTick(struct prop *prop)
 			f32 sp112;
 			s32 tagnum;
 			struct tile *geos[2];
-			struct tiletype3 *sp96;
+			u8 *end;
 			f32 damage;
 
 			if (sp572) {
@@ -47948,7 +47948,7 @@ s32 objTick(struct prop *prop)
 				func0f069c70(obj, true, true);
 				sp592 = true;
 
-				if (objUpdateGeometry(prop, geos, &sp96)
+				if (objUpdateGeometry(prop, (u8 **)geos, &end)
 						&& geos[0]->type == TILETYPE_02
 						&& func0002e4c4((struct tiletype2 *) geos[0], prop->rooms, 4) == 0) {
 					damage = ((obj->maxdamage - obj->damage) + 1) / 250.0f;
diff --git a/src/include/game/chr/chr.h b/src/include/game/chr/chr.h
index 88329ca24..d9c48ec30 100644
--- a/src/include/game/chr/chr.h
+++ b/src/include/game/chr/chr.h
@@ -88,7 +88,7 @@ struct chrdata *chrFindByLiteralId(s32 chrnum);
 struct prop *chrGetEquippedWeaponProp(struct chrdata *chr, s32 hand);
 struct prop *chrGetEquippedWeaponPropWithCheck(struct chrdata *chr, s32 hand);
 struct prop *chrGetTargetProp(struct chrdata *chr);
-bool chrUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tiletype3 **arg2);
+bool chrUpdateGeometry(struct prop *prop, u8 **start, u8 **end);
 void propChrGetBbox(struct prop *prop, f32 *width, f32 *ymax, f32 *ymin);
 
 #endif
diff --git a/src/include/game/game_0b69d0.h b/src/include/game/game_0b69d0.h
index 0020db240..2ffcf7eab 100644
--- a/src/include/game/game_0b69d0.h
+++ b/src/include/game/game_0b69d0.h
@@ -68,7 +68,7 @@ void func0f0c1ba4(struct coord *pos, struct coord *up, struct coord *look, struc
 void func0f0c1bd8(struct coord *pos, struct coord *up, struct coord *look);
 void allPlayersClearMemCamRoom(void);
 void func0f0c1e54(struct prop *prop, bool enable);
-bool playerUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tiletype3 **arg2);
+bool playerUpdateGeometry(struct prop *prop, u8 **start, u8 **end);
 void currentPlayerUpdatePerimInfo(void);
 void propPlayerGetBbox(struct prop *prop, f32 *width, f32 *ymax, f32 *ymin);
 f32 currentPlayerGetHealthFrac(void);
diff --git a/src/include/game/prop.h b/src/include/game/prop.h
index 13a7449e4..be8d0b80e 100644
--- a/src/include/game/prop.h
+++ b/src/include/game/prop.h
@@ -59,6 +59,6 @@ void func0f065e98(struct coord *pos, s16 *rooms, struct coord *pos2, s16 *rooms2
 void roomGetProps(s16 *room, s16 *propnums, u32 size);
 u32 func0f066054(void);
 void propGetBbox(struct prop *prop, f32 *width, f32 *ymax, f32 *ymin);
-bool propUpdateGeometry(struct prop *prop, struct tiletype3 **arg1, struct tiletype3 **arg2);
+bool propUpdateGeometry(struct prop *prop, u8 **start, u8 **end);
 
 #endif
diff --git a/src/include/game/propobj.h b/src/include/game/propobj.h
index faf82ab1e..58a66ec78 100644
--- a/src/include/game/propobj.h
+++ b/src/include/game/propobj.h
@@ -244,7 +244,7 @@ bool func0f0869cc(struct prop *prop);
 bool currentPlayerTryMountHoverbike(struct prop *prop);
 bool propobjInteract(struct prop *prop);
 void propObjSetOrUnsetHiddenFlag00400000(struct prop *prop, bool enable);
-bool objUpdateGeometry(struct prop *prop, struct tile **arg1, struct tiletype3 **arg2);
+bool objUpdateGeometry(struct prop *prop, u8 **arg1, u8 **arg2);
 void propObjGetBbox(struct prop *prop, f32 *width, f32 *ymax, f32 *ymin);
 void ammotypeGetPickedUpText(char *dst);
 void ammotypeGetDeterminer(char *dst, s32 ammotype, s32 qty);
diff --git a/src/include/lib/lib_24e40.h b/src/include/lib/lib_24e40.h
index 9cfd275cb..845246596 100644
--- a/src/include/lib/lib_24e40.h
+++ b/src/include/lib/lib_24e40.h
@@ -18,7 +18,7 @@ u32 func00025038(void);
 void func000250cc(struct coord *arg0, struct coord *arg1, f32 width);
 void func00025168(struct prop *prop);
 u32 func000251ac(void);
-u32 func00025254(void);
+void func00025254(u32 *arg0, u32 *arg1, u32 *arg2, struct prop *prop, f32 arg4, u32 arg5);
 u32 func00025314(void);
 u32 func00025364(void);
 u32 func000253c4(void);
@@ -40,20 +40,20 @@ bool cdIs2dPointInTileType2(struct tiletype2 *tile, f32 x, f32 z);
 u32 func00026654(void);
 u32 func000266a4(void);
 void platformGetRidingProps(struct prop *platform, s16 *propnums, u32 len);
-bool func00026a04(struct coord *pos, struct tiletype3 *arg1, struct tiletype3 *arg2, bool arg3, s32 room, struct tile **tile, s32 *arg6, f32 *arg7, bool arg8);
+bool func00026a04(struct coord *pos, u8 *start, u8 *end, bool arg3, s32 room, struct tile **tile, s32 *arg6, f32 *arg7, bool arg8);
 void func00026e7c(struct coord *pos, s16 *rooms, u16 arg2, struct tile **tileptr, s16 *arg4, f32 *arg5, struct prop **arg6, s32 arg7);
 bool func0002709c(struct tiletype0 *tile, f32 x, f32 z, f32 width, struct prop *prop, struct collisionthing *thing);
 bool func000272f8(struct tiletype1 *tile, f32 x, f32 z, f32 width, struct prop *prop, struct collisionthing *thing);
 s32 func000274e0(struct tiletype2 *tile, f32 x, f32 z, f32 width, struct prop *prop, struct collisionthing *thing);
 bool func000276c8(struct tiletype3 *tile, f32 x, f32 z, f32 width, struct prop *prop, struct collisionthing *thing);
-void func00027738(struct coord *pos, f32 width, struct tile *start, struct tile *end, u16 flags, bool checkvertical, f32 arg6, f32 arg7, struct prop *prop, struct collisionthing *things, s32 maxthings, s32 *thingnum, s32 roomnum);
+void func00027738(struct coord *pos, f32 width, u8 *start, u8 *end, u16 flags, bool checkvertical, f32 arg6, f32 arg7, struct prop *prop, struct collisionthing *things, s32 maxthings, s32 *thingnum, s32 roomnum);
 void func00027d1c(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4, u32 arg5, f32 arg6, f32 arg7, struct collisionthing *arg8, s32 arg9);
 u32 func00027f78(void);
 s32 func00028200(struct tiletype0 *tile, struct coord *pos, f32 width, f32 y1, f32 y2);
 u32 func0002840c(void);
 u32 func00028638(void);
 u32 func0002885c(void);
-s32 func00028914(struct tile *start, struct tile *end, struct coord *pos, f32 width, u16 flags, bool checkvertical, f32 arg6, f32 arg7, struct prop *prop, struct collisionthing *things, s32 maxthings, s32 *thingnum);
+s32 func00028914(u8 *start, u8 *end, struct coord *pos, f32 width, u16 flags, bool checkvertical, f32 arg6, f32 arg7, struct prop *prop, struct collisionthing *things, s32 maxthings, s32 *thingnum);
 void func00028df0(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4, u32 arg5, f32 ymax, f32 ymin, struct collisionthing *arg8, s32 arg9);
 void func0002901c(struct coord *pos, struct coord *dist, f32 width, struct collisionthing *arg3);
 f32 func000296a0(struct collisionthing *arg0, struct coord *pos, struct tilething **arg2, f32 width);
@@ -77,10 +77,10 @@ u32 func0002ac70(void);
 u32 func0002b128(void);
 u32 func0002b560(void);
 u32 func0002b954(void);
-bool func0002bd04(struct tiletype3 *arg0, struct tiletype3 *arg1, struct coord *arg2, struct coord *arg3, struct coord *arg4, s32 arg5, s32 arg6, s32 arg7, f32 arg8, f32 arg9);
+bool func0002bd04(u8 *start, u8 *end, struct coord *arg2, struct coord *arg3, struct coord *arg4, s32 arg5, s32 arg6, s32 arg7, f32 arg8, f32 arg9);
 u32 func0002c328(void);
 u32 func0002c528(void);
-u32 func0002c714(void);
+bool func0002c714(u8 *start, u8 *end, struct coord *arg2, struct coord *arg3, struct coord *arg4, u16 arg5, s32 arg6, s32 arg7, f32 ymax, f32 ymin, f32 *arg10, u32 *arg11, u32 *arg12, u32 *arg13, u32 *arg14, s32 roomnum);
 bool func0002d15c(struct coord *pos, struct coord *coord2, s16 *rooms, u32 types, u16 arg4, s32 arg5, s32 arg6, f32 arg7, f32 arg8);
 s32 func0002d3b0(struct coord *arg0, struct coord *arg1, s16 *arg2, s32 types, u16 arg4, s32 arg5, s32 arg6, f32 ymax, f32 ymin);
 bool func0002d6ac(struct coord *pos, s16 *rooms, struct coord *targetpos, u32 types, u32 arg4, f32 arg5, f32 arg6);
@@ -102,7 +102,7 @@ u32 func0002de34(void);
 u32 func0002deac(void);
 u32 func0002ded8(void);
 bool func0002dffc(struct tiletype2 *arg0, struct tiletype2 *arg1);
-s32 func0002e278(struct tile *start, struct tile *end, struct tiletype2 *ref, u16 flags);
+s32 func0002e278(u8 *start, u8 *end, struct tiletype2 *ref, u16 flags);
 s32 func0002e4c4(struct tiletype2 *geo, s16 *rooms, u32 types);
 u32 func0002e680(void);
 u32 func0002e82c(void);
diff --git a/src/lib/lib_24e40.c b/src/lib/lib_24e40.c
index 726c3a7f6..496a1a9fe 100644
--- a/src/lib/lib_24e40.c
+++ b/src/lib/lib_24e40.c
@@ -2011,8 +2011,8 @@ void func00026e7c(struct coord *pos, s16 *rooms, u16 arg2, struct tile **tileptr
 {
 	s16 *roomptr;
 	s32 roomnum;
-	struct tiletype3 *sp27c;
-	struct tiletype3 *sp278;
+	u8 *start;
+	u8 *end;
 	f32 sp274;
 	struct tile *sp270 = NULL;
 	s32 sp26c = 0;
@@ -2031,10 +2031,10 @@ void func00026e7c(struct coord *pos, s16 *rooms, u16 arg2, struct tile **tileptr
 
 	while (roomnum != -1) {
 		if (roomnum < g_TileNumRooms) {
-			sp27c = (struct tiletype3 *)(g_TileFileData.u8 + g_TileRooms[roomnum]);
-			sp278 = (struct tiletype3 *)(g_TileFileData.u8 + g_TileRooms[roomnum + 1]);
+			start = g_TileFileData.u8 + g_TileRooms[roomnum];
+			end = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
 
-			func00026a04(pos, sp27c, sp278, arg2, roomnum, &sp270, &sp26c, &sp274, arg7);
+			func00026a04(pos, start, end, arg2, roomnum, &sp270, &sp26c, &sp274, arg7);
 		}
 
 		roomptr++;
@@ -2047,8 +2047,8 @@ void func00026e7c(struct coord *pos, s16 *rooms, u16 arg2, struct tile **tileptr
 	while (*propnumptr >= 0) {
 		struct prop *prop = &g_Vars.props[*propnumptr];
 
-		if (propUpdateGeometry(prop, &sp27c, &sp278)
-				&& func00026a04(pos, sp27c, sp278, arg2, prop->rooms[0], &sp270, &sp26c, &sp274, arg7)) {
+		if (propUpdateGeometry(prop, &start, &end)
+				&& func00026a04(pos, start, end, arg2, prop->rooms[0], &sp270, &sp26c, &sp274, arg7)) {
 			sp268 = prop;
 		}
 
@@ -2204,14 +2204,14 @@ bool func000276c8(struct tiletype3 *tile, f32 x, f32 z, f32 width, struct prop *
 	return result;
 }
 
-void func00027738(struct coord *pos, f32 width, struct tile *start, struct tile *end, u16 flags,
+void func00027738(struct coord *pos, f32 width, u8 *start, u8 *end, u16 flags,
 		bool checkvertical, f32 arg6, f32 arg7, struct prop *prop,
 		struct collisionthing *things, s32 maxthings, s32 *thingnum, s32 roomnum)
 {
-	struct tile *tile = start;
+	struct tile *tile = (struct tile *) start;
 	s32 result;
 
-	while (tile < end) {
+	while (tile < (struct tile *) end) {
 		if (tile->type == TILETYPE_00) {
 			struct tiletype0 *type0 = (struct tiletype0 *) tile;
 
@@ -2311,8 +2311,8 @@ void func00027d1c(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4,
 {
 	s16 *roomptr;
 	s32 roomnum;
-	u8 *roomdatastart;
-	u8 *roomdataend;
+	u8 *start;
+	u8 *end;
 	s32 sp294 = 0;
 	s16 *propnumptr;
 	s16 propnums[256];
@@ -2324,11 +2324,10 @@ void func00027d1c(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4,
 
 		while (roomnum != -1) {
 			if (roomnum < g_TileNumRooms) {
-				roomdatastart = (g_TileFileData.u8 + g_TileRooms[roomnum]);
-				roomdataend = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
+				start = g_TileFileData.u8 + g_TileRooms[roomnum];
+				end = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
 
-				func00027738(pos, width, (struct tile *) roomdatastart, (struct tile *) roomdataend,
-						arg4, arg5, arg6, arg7, NULL, arg8, arg9, &sp294, roomnum);
+				func00027738(pos, width, start, end, arg4, arg5, arg6, arg7, NULL, arg8, arg9, &sp294, roomnum);
 
 				if (sp294 >= arg9) {
 					goto end;
@@ -2347,9 +2346,8 @@ void func00027d1c(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4,
 	while (*propnumptr >= 0) {
 		struct prop *prop = &g_Vars.props[*propnumptr];
 
-		if (propIsOfCdType(prop, types) && propUpdateGeometry(prop, (struct tiletype3 **) &roomdatastart, (struct tiletype3 **) &roomdataend)) {
-			func00027738(pos, width, (struct tile *) roomdatastart, (struct tile *) roomdataend,
-					arg4, arg5, arg6, arg7, prop, arg8, arg9, &sp294, prop->rooms[0]);
+		if (propIsOfCdType(prop, types) && propUpdateGeometry(prop, &start, &end)) {
+			func00027738(pos, width, start, end, arg4, arg5, arg6, arg7, prop, arg8, arg9, &sp294, prop->rooms[0]);
 
 			if (sp294 >= arg9) {
 				break;
@@ -3310,8 +3308,8 @@ void func00028df0(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4,
 {
 	s16 *roomptr;
 	s32 roomnum;
-	u8 *roomdatastart;
-	u8 *roomdataend;
+	u8 *start;
+	u8 *end;
 	s32 sp294 = 0;
 	s16 *propnumptr;
 	s16 propnums[256];
@@ -3323,11 +3321,10 @@ void func00028df0(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4,
 
 		while (roomnum != -1) {
 			if (roomnum < g_TileNumRooms) {
-				roomdatastart = (g_TileFileData.u8 + g_TileRooms[roomnum]);
-				roomdataend = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
+				start = g_TileFileData.u8 + g_TileRooms[roomnum];
+				end = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
 
-				func00028914((struct tile *) roomdatastart, (struct tile *) roomdataend, pos, width,
-						arg4, arg5, ymax, ymin, NULL, arg8, arg9, &sp294);
+				func00028914(start, end, pos, width, arg4, arg5, ymax, ymin, NULL, arg8, arg9, &sp294);
 			}
 
 			roomptr++;
@@ -3342,9 +3339,8 @@ void func00028df0(struct coord *pos, f32 width, s16 *rooms, u32 types, u16 arg4,
 	while (*propnumptr >= 0) {
 		struct prop *prop = &g_Vars.props[*propnumptr];
 
-		if (propIsOfCdType(prop, types) && propUpdateGeometry(prop, (struct tiletype3 **) &roomdatastart, (struct tiletype3 **) &roomdataend)) {
-			func00028914((struct tile *) roomdatastart, (struct tile *) roomdataend, pos, width,
-					arg4, arg5, ymax, ymin, prop, arg8, arg9, &sp294);
+		if (propIsOfCdType(prop, types) && propUpdateGeometry(prop, &start, &end)) {
+			func00028914(start, end, pos, width, arg4, arg5, ymax, ymin, prop, arg8, arg9, &sp294);
 		}
 
 		propnumptr++;
@@ -8342,8 +8338,8 @@ bool func0002d15c(struct coord *pos, struct coord *coord2, s16 *rooms, u32 types
 {
 	s32 roomnum;
 	s16 *roomptr;
-	struct tiletype3 *sp28c;
-	struct tiletype3 *sp288;
+	u8 *start;
+	u8 *end;
 	struct coord sp27c;
 	s16 *propnumptr;
 	s16 propnums[256];
@@ -8358,10 +8354,10 @@ bool func0002d15c(struct coord *pos, struct coord *coord2, s16 *rooms, u32 types
 
 		while (roomnum != -1) {
 			if (roomnum < g_TileNumRooms) {
-				sp28c = (struct tiletype3 *)(g_TileFileData.u8 + g_TileRooms[roomnum]);
-				sp288 = (struct tiletype3 *)(g_TileFileData.u8 + g_TileRooms[roomnum + 1]);
+				start = g_TileFileData.u8 + g_TileRooms[roomnum];
+				end = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
 
-				if (func0002bd04(sp28c, sp288, pos, coord2, &sp27c, arg4, arg5, arg6, arg7, arg8) == 0) {
+				if (func0002bd04(start, end, pos, coord2, &sp27c, arg4, arg5, arg6, arg7, arg8) == 0) {
 					func00025168(NULL);
 					return false;
 				}
@@ -8380,8 +8376,8 @@ bool func0002d15c(struct coord *pos, struct coord *coord2, s16 *rooms, u32 types
 		struct prop *prop = &g_Vars.props[*propnumptr];
 
 		if (propIsOfCdType(prop, types)
-				&& propUpdateGeometry(prop, &sp28c, &sp288)
-				&& func0002bd04(sp28c, sp288, pos, coord2, &sp27c, arg4, arg5, arg6, arg7, arg8) == 0) {
+				&& propUpdateGeometry(prop, &start, &end)
+				&& func0002bd04(start, end, pos, coord2, &sp27c, arg4, arg5, arg6, arg7, arg8) == 0) {
 			func00025168(prop);
 			return false;
 		}
@@ -8594,6 +8590,68 @@ glabel func0002d3b0
 /*    2d6a8:	27bd02e0 */ 	addiu	$sp,$sp,0x2e0
 );
 
+// Mismatch: Calculation of g_TileRooms[roomnum] is different
+// Other functions and the below use t3 as the offset, t2 as the base, then t2 + t3
+// But goal for this function uses t2 as the offset, t3 as the base, then t2 + t3
+//s32 func0002d3b0(struct coord *arg0, struct coord *arg1, s16 *rooms, s32 types, u16 arg4, s32 arg5, s32 arg6, f32 ymax, f32 ymin)
+//{
+//	s32 roomnum;
+//	s16 *roomptr;
+//	u8 *start;
+//	u8 *end;
+//	struct coord sp2c4;
+//	bool sp2c0 = false;
+//	u32 sp2b4[3];
+//	u32 sp2a8[3];
+//	u32 sp29c[3];
+//	f32 sp298 = 4294967296;
+//	u32 sp294;
+//	s16 *propnumptr;
+//	s16 propnums[256];
+//
+//	sp2c4.x = arg1->x - arg0->x;
+//	sp2c4.y = arg1->y - arg0->y;
+//	sp2c4.z = arg1->z - arg0->z;
+//
+//	if (types & CDTYPE_BG) {
+//		roomptr = rooms;
+//		roomnum = rooms[0];
+//
+//		while (roomnum != -1) {
+//			if (roomnum < g_TileNumRooms) {
+//				start = g_TileFileData.u8 + g_TileRooms[roomnum];
+//				end = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
+//
+//				if (!func0002c714(start, end, arg0, arg1, &sp2c4, arg4, arg5, arg6, ymax, ymin, &sp298, sp2b4, sp2a8, sp29c, &sp294, roomnum)) {
+//					sp2c0 = true;
+//					func00025254(sp2a8, sp29c, sp2b4, NULL, sp298, sp294);
+//				}
+//			}
+//
+//			roomptr++;
+//			roomnum = *roomptr;
+//		}
+//	}
+//
+//	roomGetProps(rooms, propnums, 256);
+//	propnumptr = propnums;
+//
+//	while (*propnumptr >= 0) {
+//		struct prop *prop = &g_Vars.props[*propnumptr];
+//
+//		if (propIsOfCdType(prop, types)
+//				&& propUpdateGeometry(prop, &start, &end)
+//				&& !func0002c714(start, end, arg0, arg1, &sp2c4, arg4, arg5, arg6, ymax, ymin, &sp298, sp2b4, sp2a8, sp29c, &sp294, -999)) {
+//			sp2c0 = true;
+//			func00025254(sp2a8, sp29c, sp2b4, prop, sp298, sp294);
+//		}
+//
+//		propnumptr++;
+//	}
+//
+//	return !sp2c0;
+//}
+
 bool func0002d6ac(struct coord *pos, s16 *rooms, struct coord *targetpos, u32 types, u32 arg4, f32 arg5, f32 arg6)
 {
 	s16 sp44[21];
@@ -9230,11 +9288,11 @@ glabel func0002dffc
 //	return false;
 //}
 
-s32 func0002e278(struct tile *start, struct tile *end, struct tiletype2 *ref, u16 flags)
+s32 func0002e278(u8 *start, u8 *end, struct tiletype2 *ref, u16 flags)
 {
-	struct tile *tile = start;
+	struct tile *tile = (struct tile *) start;
 
-	while (tile < end) {
+	while (tile < (struct tile *) end) {
 		if (tile->type == TILETYPE_00) {
 			struct tiletype0 *type0 = (struct tiletype0 *) tile;
 			tile = (struct tile *)((u32)tile + type0->header.numvertices * 6 + 0xe);
@@ -9289,8 +9347,8 @@ s32 func0002e4c4(struct tiletype2 *geo, s16 *rooms, u32 types)
 {
 	s32 result = CDRESULT_NOCOLLISION;
 	s32 roomnum;
-	u8 *roomdatastart;
-	u8 *roomdataend;
+	u8 *start;
+	u8 *end;
 	s16 *roomptr;
 	s16 propnums[256];
 	s16 *propnumptr;
@@ -9302,10 +9360,10 @@ s32 func0002e4c4(struct tiletype2 *geo, s16 *rooms, u32 types)
 
 		while (roomnum != -1) {
 			if (roomnum < g_TileNumRooms) {
-				roomdatastart = (g_TileFileData.u8 + g_TileRooms[roomnum]);
-				roomdataend = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
+				start = g_TileFileData.u8 + g_TileRooms[roomnum];
+				end = g_TileFileData.u8 + g_TileRooms[roomnum + 1];
 
-				result = func0002e278((struct tile *) roomdatastart, (struct tile *) roomdataend, geo, TILEFLAG_0004);
+				result = func0002e278(start, end, geo, TILEFLAG_0004);
 
 				if (result == CDRESULT_COLLISION) {
 					func00025168(NULL);
@@ -9326,8 +9384,8 @@ s32 func0002e4c4(struct tiletype2 *geo, s16 *rooms, u32 types)
 		while (*propnumptr >= 0) {
 			struct prop *prop = &g_Vars.props[*propnumptr];
 
-			if (propIsOfCdType(prop, types) && propUpdateGeometry(prop, (struct tiletype3 **) &roomdatastart, (struct tiletype3 **) &roomdataend)) {
-				result = func0002e278((struct tile *) roomdatastart, (struct tile *) roomdataend, geo, TILEFLAG_0004);
+			if (propIsOfCdType(prop, types) && propUpdateGeometry(prop, &start, &end)) {
+				result = func0002e278(start, end, geo, TILEFLAG_0004);
 
 				if (result == CDRESULT_COLLISION) {
 					func00025168(prop);