/**** 
* Classes
****/ 
// Define the Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		// Enemy update logic
		self.y += self.speed;
		if (self.y > 2732) {
			self.y = -self.height;
			self.x = Math.random() * 2048;
		}
	};
});
//<Assets used in the game will automatically appear here>
// Define the 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 () {
		if (LK.isKeyDown('ArrowLeft')) {
			self.x -= self.speed;
		}
		if (LK.isKeyDown('ArrowRight')) {
			self.x += self.speed;
		}
		if (LK.isKeyDown('ArrowUp')) {
			self.y -= self.speed;
		}
		if (LK.isKeyDown('ArrowDown')) {
			self.y += self.speed;
		}
		// Player update logic
	};
	self.move = function (x, y) {
		self.x = x;
		self.y = y;
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
// Add keyboard event listeners for player movement
LK.on('keydown', function (key) {
	if (key === 'ArrowLeft' || key === 'ArrowRight' || key === 'ArrowUp' || key === 'ArrowDown') {
		player.update();
	}
});
// Initialize player
var player = new Player();
player.x = 2048 / 2;
player.y = 2732 - 200;
game.addChild(player);
// Initialize enemies
var enemies = [];
for (var i = 0; i < 5; i++) {
	var enemy = new Enemy();
	enemy.x = Math.random() * 2048;
	enemy.y = Math.random() * -2732;
	enemies.push(enemy);
	game.addChild(enemy);
}
// Handle player movement
var dragNode = null;
function handleMove(x, y, obj) {
	if (dragNode) {
		dragNode.move(x, y);
	}
}
game.down = function (x, y, obj) {
	dragNode = player;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Update game state
game.update = function () {
	for (var i = 0; i < enemies.length; i++) {
		enemies[i].update();
		if (player.intersects(enemies[i])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -27,8 +27,20 @@
 		anchorY: 0.5
 	});
 	self.speed = 10;
 	self.update = function () {
+		if (LK.isKeyDown('ArrowLeft')) {
+			self.x -= self.speed;
+		}
+		if (LK.isKeyDown('ArrowRight')) {
+			self.x += self.speed;
+		}
+		if (LK.isKeyDown('ArrowUp')) {
+			self.y -= self.speed;
+		}
+		if (LK.isKeyDown('ArrowDown')) {
+			self.y += self.speed;
+		}
 		// Player update logic
 	};
 	self.move = function (x, y) {
 		self.x = x;
@@ -45,8 +57,14 @@
 
 /**** 
 * Game Code
 ****/ 
+// Add keyboard event listeners for player movement
+LK.on('keydown', function (key) {
+	if (key === 'ArrowLeft' || key === 'ArrowRight' || key === 'ArrowUp' || key === 'ArrowDown') {
+		player.update();
+	}
+});
 // Initialize player
 var player = new Player();
 player.x = 2048 / 2;
 player.y = 2732 - 200;