===================================================================
--- original.js
+++ change.js
@@ -56,10 +56,10 @@
 // Create static platforms
 var obstacles = [];
 for (var i = 0; i < 10; i++) {
 	var platform = new Obstacle();
-	platform.x = i * 200;
-	platform.y = 2732 - 100;
+	platform.x = Math.random() * 2048;
+	platform.y = Math.random() * 2732;
 	obstacles.push(game.addChild(platform));
 }
 var hero = game.addChild(new Hero());
 hero.x = 2048 / 2;