===================================================================
--- original.js
+++ change.js
@@ -121,15 +121,8 @@
 	fill: "#ffffff"
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
-function spawnObstacle() {
-	var obstacle = new Obstacle();
-	obstacle.x = 2048 + obstacle.width / 2;
-	obstacle.y = Math.random() * (2732 - obstacle.height) + obstacle.height / 2;
-	obstacles.push(obstacle);
-	game.addChild(obstacle);
-}
 function spawnCoin() {
 	var coin = new Coin();
 	coin.x = 2048 + coin.width / 2;
 	coin.y = Math.random() * (2732 - coin.height) + coin.height / 2;
@@ -167,9 +160,8 @@
 			coins.splice(j, 1);
 		}
 	}
 	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);