===================================================================
--- original.js
+++ change.js
@@ -38,8 +38,23 @@
 			self.destroy();
 		}
 	};
 });
+// Downside Obstacle class
+var DownsideObstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -5;
+	self.update = function () {
+		self.x += self.speed;
+		if (self.x < -obstacleGraphics.width / 2) {
+			self.destroy();
+		}
+	};
+});
 // Obstacle class
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
 	var obstacleGraphics = self.attachAsset('obstacle', {
@@ -68,8 +83,23 @@
 			self.destroy();
 		}
 	};
 });
+// Upside Obstacle class
+var UpsideObstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -5;
+	self.update = function () {
+		self.x += self.speed;
+		if (self.x < -obstacleGraphics.width / 2) {
+			self.destroy();
+		}
+	};
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -138,8 +168,18 @@
 		}
 	}
 	if (LK.ticks % 120 == 0) {
 		spawnObstacle();
+		var upsideObstacle = new UpsideObstacle();
+		upsideObstacle.x = 2048 + upsideObstacle.width / 2;
+		upsideObstacle.y = Math.random() * (2732 / 2 - upsideObstacle.height / 2);
+		obstacles.push(upsideObstacle);
+		game.addChild(upsideObstacle);
+		var downsideObstacle = new DownsideObstacle();
+		downsideObstacle.x = 2048 + downsideObstacle.width / 2;
+		downsideObstacle.y = Math.random() * (2732 / 2 - downsideObstacle.height / 2) + 2732 / 2;
+		obstacles.push(downsideObstacle);
+		game.addChild(downsideObstacle);
 	}
 	if (LK.ticks % 180 == 0) {
 		spawnCoin();
 	}