diff --git a/res/fg/rock1.png b/res/fg/rock1.png
index ceb0bac..e9bc810 100644
Binary files a/res/fg/rock1.png and b/res/fg/rock1.png differ
diff --git a/res/fg/rock1b.png b/res/fg/rock1b.png
new file mode 100644
index 0000000..2be8156
Binary files /dev/null and b/res/fg/rock1b.png differ
diff --git a/res/fg/rock1l.png b/res/fg/rock1l.png
new file mode 100644
index 0000000..e9a9d63
Binary files /dev/null and b/res/fg/rock1l.png differ
diff --git a/res/fg/rock1r.png b/res/fg/rock1r.png
new file mode 100644
index 0000000..31e93bc
Binary files /dev/null and b/res/fg/rock1r.png differ
diff --git a/res/fg/rock1t.png b/res/fg/rock1t.png
index f9039fa..4273738 100644
Binary files a/res/fg/rock1t.png and b/res/fg/rock1t.png differ
diff --git a/res/resources.res b/res/resources.res
index 0fdb583..da127e1 100644
--- a/res/resources.res
+++ b/res/resources.res
@@ -4,6 +4,10 @@ IMAGE frame "chrome/frame.png" FAST
 IMAGE wall1 "bg/wall1.png" FAST
 
 IMAGE rock1 "fg/rock1.png" FAST
+IMAGE rock1l "fg/rock1l.png" FAST
+IMAGE rock1r "fg/rock1r.png" FAST
+IMAGE rock1b "fg/rock1b.png" FAST
+
 IMAGE rock1t "fg/rock1t.png" FAST
 
 SPRITE nitori "player/nitori.png" 4 4 FAST
diff --git a/src/background.h b/src/background.h
index 9ece06a..3284af2 100644
--- a/src/background.h
+++ b/src/background.h
@@ -31,7 +31,6 @@ fix16 bgPosXF[WIN_H_T];
 Vect2D_f16 bgPos;
 
 static void scrollBg(){
-
 	for(u8 y = 0; y < WIN_H_T; y++){
 		if(y > 3) bgPosXF[y] = fix16Sub(bgPosXF[y], BG_SPEED);
 		if(bgPosXF[y] <= -BG_SIZE_F) bgPosXF[y] = fix16Add(bgPosXF[y], BG_SIZE_F);
diff --git a/src/chrome.h b/src/chrome.h
index 5a75965..8d8674e 100644
--- a/src/chrome.h
+++ b/src/chrome.h
@@ -19,7 +19,7 @@ u32 lastScore;
 char scoreStr[SCORE_LENGTH];
 
 static void loadScore(){
-	VDP_drawText("hi", 1, 1);
+	VDP_drawText("HI", 1, 1);
 	VDP_drawText("00000000", SCORE_X, 1);
 	VDP_drawText("sc", 1, 2);
 	intToStr(score, scoreStr, SCORE_LENGTH);
@@ -36,14 +36,14 @@ static void updateScore(){
 }
 
 
-// round
+// zone
 
-#define ROUND_X 29
-#define ROUND_Y 1
+#define ZONE_X 28
+#define ZONE_Y 1
 
-static void loadRound(){
-	VDP_drawText("round", ROUND_X - 6, ROUND_Y);
-	VDP_drawText("01", ROUND_X, ROUND_Y);
+static void loadZone(){
+	VDP_drawText("ZONE", ZONE_X - 5, ZONE_Y);
+	VDP_drawText("001", ZONE_X, ZONE_Y);
 }
 
 
@@ -63,7 +63,7 @@ static void loadHeat(){
 void loadChrome(){
 	loadFrame();
 	loadScore();
-	loadRound();
+	loadZone();
 	loadHeat();
 }
 
diff --git a/src/foreground.h b/src/foreground.h
index 90ce7e6..f274653 100644
--- a/src/foreground.h
+++ b/src/foreground.h
@@ -1,6 +1,14 @@
 // foreground
 
 #define FG_I 576
+#define FG_W GAME_W_T + 30
+#define OBSTACLE_COUNT 8
+
+struct obstacle {
+	bool active;
+	Vect2D_f16 pos;
+}
+struct obstacle obstacles[OBSTACLE_COUNT];
 
 
 // draw
@@ -9,7 +17,7 @@
 #define FLOOR_Y 24
 
 static void drawFg(){
-	for(u16 x = 0; x < BG_W; x++){
+	for(u16 x = 0; x < FG_W; x++){
 		if(x % 4 == 0){
 			VDP_drawImageEx(BG_B, &rock1t, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I), x, CEIL_Y, 0, DMA);
 			VDP_drawImageEx(BG_B, &rock1, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 16), x, FLOOR_Y, 0, DMA);
@@ -17,22 +25,44 @@ static void drawFg(){
 	}
 }
 
+// obstacle
+
+#define OBS_FLOOR_Y FLOOR_Y - 4
+s16 fgPos;
+s16 obsX;
+
+static void spawnObstacle(){
+	obsX = 32;
+	VDP_drawImageEx(BG_B, &rock1l, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32), obsX, OBS_FLOOR_Y, 0, DMA);
+	VDP_drawImageEx(BG_B, &rock1, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32 + 16), obsX + 2, OBS_FLOOR_Y, 0, DMA);
+	VDP_drawImageEx(BG_B, &rock1r, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32 + 16 + 16), obsX + 2 + 4, OBS_FLOOR_Y, 0, DMA);
+	VDP_drawImageEx(BG_B, &rock1b, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32 + 16 + 16 + 16), obsX + 2, OBS_FLOOR_Y + 4, 0, DMA);
+}
+
 
 // update
 
 #define FG_SPEED FIX16(2)
-#define BG_SPEED_NORM FIX16(2 * 0.707)
+#define FG_SPEED_NORM FIX16(2 * 0.707)
 
 #define FG_SIZE 32
+#define FG_LIMIT FIX16(-40 * 8)
 
-#define FG_SIZE_F FIX16(FG_SIZE)
+#define FG_SIZE_F 40
+
+s16 fgPosX[WIN_H_T];
+fix16 fgPosXF[WIN_H_T];
 
-Vect2D_f16 fgPos;
 
 static void scrollFg(){
-	fgPos.x = fix16Sub(fgPos.x, FG_SPEED);
-	if(fgPos.x <= -FG_SIZE_F) fgPos.x = fix16Add(fgPos.x, FG_SIZE_F);
-	if(fgPos.y >= FG_SIZE_F) fgPos.y = fix16Sub(fgPos.y, FG_SIZE_F);
+	for(u8 y = 0; y < WIN_H_T; y++){
+		if(y > 2){
+			fgPosXF[y] = fix16Sub(fgPosXF[y], FG_SPEED);
+			if(fgPosXF[y] <= FG_LIMIT) fgPosXF[y] = 0;
+			fgPosX[y] = fix16ToInt(fgPosXF[y]);
+			if(y == 3) fgPos = fgPosX[y];
+		}
+	}
 }
 
 
@@ -40,10 +70,10 @@ static void scrollFg(){
 
 void loadFg(){
 	drawFg();
+	spawnObstacle();
 }
 
 void updateFg(){
-	// VDP_setHorizontalScroll(BG_B, fix16ToInt(fgPos.x));
-	// VDP_setVerticalScroll(BG_B, fix16ToInt(fgPos.y));
+	VDP_setHorizontalScrollTile(BG_B, 0, fgPosX, WIN_H_T, DMA);
 	scrollFg();
 }
\ No newline at end of file
diff --git a/src/player.h b/src/player.h
index 09ac1b9..943baa0 100644
--- a/src/player.h
+++ b/src/player.h
@@ -35,11 +35,14 @@ static void spawnPlayer(){
 #define PLAYER_LIMIT_Y FIX16(16)
 #define PLAYER_LIMIT_H FIX16(GAME_H - 16)
 
+#define PLAYER_LIMIT_Y_HORI FIX16(72)
+#define PLAYER_LIMIT_H_HORI FIX16(GAME_H - 32 - 16)
+
 static void checkPlayerBounds(){
 	if(player.pos.x < PLAYER_LIMIT_X) player.pos.x = PLAYER_LIMIT_X;
 	else if(player.pos.x > PLAYER_LIMIT_W) player.pos.x = PLAYER_LIMIT_W;
-	if(player.pos.y < PLAYER_LIMIT_Y) player.pos.y = PLAYER_LIMIT_Y;
-	else if(player.pos.y > PLAYER_LIMIT_H) player.pos.y = PLAYER_LIMIT_H;
+	if(player.pos.y < PLAYER_LIMIT_Y_HORI) player.pos.y = PLAYER_LIMIT_Y_HORI;
+	else if(player.pos.y > PLAYER_LIMIT_H_HORI) player.pos.y = PLAYER_LIMIT_H_HORI;
 }
 
 // movement