===================================================================
--- original.js
+++ change.js
@@ -1,72 +1,73 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Define an Obstacle class
 var Obstacle = 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.y += self.speed;
-    if (self.y > 2732) {
-      self.y = -obstacleGraphics.height;
-      self.x = Math.random() * 2048;
-    }
-  };
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = Math.random() * 10;
+	self.update = function () {
+		self.y += Math.random() > 0.5 ? self.speed : -self.speed;
+		self.x += Math.random() > 0.5 ? self.speed : -self.speed;
+		if (self.y > 2732 || self.y < 0 || self.x > 2048 || self.x < 0) {
+			self.y = Math.random() * 2732;
+			self.x = Math.random() * 2048;
+		}
+	};
 });
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Define a Player class
 var Player = Container.expand(function () {
-  var self = Container.call(this);
-  var playerGraphics = self.attachAsset('player', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 10;
-  self.update = function () {
-    // Player update logic
-  };
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 10;
+	self.update = function () {
+		// Player update logic
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize player
 var player = game.addChild(new Player());
 player.x = 2048 / 2;
 player.y = 2732 - 200;
 // Initialize obstacles
 var obstacles = [];
 for (var i = 0; i < 5; i++) {
-  var obstacle = new Obstacle();
-  obstacle.x = Math.random() * 2048;
-  obstacle.y = Math.random() * 2732;
-  obstacles.push(obstacle);
-  game.addChild(obstacle);
+	var obstacle = new Obstacle();
+	obstacle.x = Math.random() * 2048;
+	obstacle.y = Math.random() * 2732;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
 }
 // Handle player movement
 game.down = function (x, y, obj) {
-  player.x = x;
-  player.y = y;
+	player.x = x;
+	player.y = y;
 };
 // Update game logic
 game.update = function () {
-  for (var i = 0; i < obstacles.length; i++) {
-    obstacles[i].update();
-    if (player.intersects(obstacles[i])) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  }
+	for (var i = 0; i < obstacles.length; i++) {
+		obstacles[i].update();
+		if (player.intersects(obstacles[i])) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+	}
 };
\ No newline at end of file