/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Block class representing each block in the game
var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGraphics = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Blocks do not have any specific update logic for now
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x800080 //Init game with purple background
});

/**** 
* Game Code
****/ 
// Initialize variables
var blocks = [];
var currentBlock = null;
var stackHeight = 0;
var gameSpeed = 1;
var score = 0;
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
// Event listeners for arrow keys
game.keydown = function (event) {
	if (currentBlock) {
		if (event.key === 'ArrowLeft') {
			currentBlock.x -= 50;
		} else if (event.key === 'ArrowRight') {
			currentBlock.x += 50;
		}
	}
};
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Function to create a new block
function createBlock() {
	var block = new Block();
	block.children[0].tint = getRandomColor();
	block.x = 2048 / 2;
	block.y = 100;
	blocks.push(block);
	game.addChild(block);
	currentBlock = block;
}
// Function to handle block placement
function placeBlock() {
	if (currentBlock) {
		if (stackHeight >= 30) {
			LK.showGameOver();
			return;
		}
		currentBlock.y = 2732 - stackHeight * 100 - 50;
		currentBlock = null;
		currentBlock = null;
		stackHeight++;
		score++;
		scoreTxt.setText(score);
		createBlock();
		gameSpeed += 0.5;
	}
}
// Initialize the first block with a random color
createBlock();
// Event listener for touch down
game.down = function (x, y, obj) {
	currentBlock.y = blocks[i].y - 100;
	placeBlock();
};
// Update function called every game tick
game.update = function () {
	if (currentBlock) {
		currentBlock.y += gameSpeed * 5;
		for (var i = 0; i < blocks.length; i++) {
			if (currentBlock !== blocks[i] && currentBlock.intersects(blocks[i])) {
				placeBlock();
				break;
			}
		}
		if (currentBlock.y > 2732) {
			if (stackHeight >= 30) {
				LK.showGameOver();
				return;
			}
			currentBlock.y = 2732 - stackHeight * 100 - 50;
			stackHeight++;
			score++;
			scoreTxt.setText(score);
			currentBlock = null;
			createBlock();
			gameSpeed += 0.5;
		}
	}
};
// Function to generate a random color
function getRandomColor() {
	return Math.floor(Math.random() * 16777215);
}

===================================================================
--- original.js
+++ change.js
@@ -34,17 +34,17 @@
 	size: 150,
 	fill: "#ffffff"
 });
 // Event listeners for arrow keys
-document.addEventListener('keydown', function (event) {
+game.keydown = function (event) {
 	if (currentBlock) {
 		if (event.key === 'ArrowLeft') {
 			currentBlock.x -= 50;
 		} else if (event.key === 'ArrowRight') {
 			currentBlock.x += 50;
 		}
 	}
-});
+};
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 // Function to create a new block
 function createBlock() {