/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		self.y -= self.speed;
		if (self.y < 0) {
			self.destroy();
		}
	};
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 50;
	self.speed = 3;
	self.update = function () {
		// Update logic for enemy
		// Move towards hero
		var dx = hero.x - self.x;
		var dy = hero.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			self.x += self.speed * dx / distance;
			self.y += self.speed * dy / distance;
		}
	};
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			self.die();
		}
	};
	self.die = function () {
		// Handle enemy death
		self.destroy();
	};
});
//<Assets used in the game will automatically appear here>
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 100;
	self.speed = 5;
	self.update = function () {
		// Update logic for hero
		// Move hero left if it's not at the edge of the screen
		if (self.x > 0) {
			self.x -= self.speed;
		}
		// Move hero right if it's not at the edge of the screen
		if (self.x < 2048) {
			self.x += self.speed;
		}
	};
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			self.die();
		}
	};
	self.die = function () {
		// Handle hero death
		LK.showGameOver();
	};
});

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

/**** 
* Game Code
****/ 
// Initialize hero
var hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 - 200;
// Initialize enemies array
var enemies = [];
// Initialize bullets array
var bullets = [];
// Function to spawn enemies
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = Math.random() * 2048;
	enemy.y = 0;
	enemies.push(enemy);
	game.addChild(enemy);
}
// Function to shoot bullets
function shootBullet() {
	var bullet = new Bullet();
	bullet.x = hero.x;
	bullet.y = hero.y;
	bullets.push(bullet);
	game.addChild(bullet);
}
// Handle touch events for shooting
game.down = function (x, y, obj) {
	shootBullet();
};
// Update game logic
game.update = function () {
	// Update hero
	hero.update();
	// Handle keyboard events for hero movement
	LK.on('keydown', function (event) {
		switch (event.key) {
			case 'w':
				// Move hero up
				hero.y += hero.speed;
				break;
			case 'a':
				// Move hero left
				hero.x += hero.speed;
				break;
			case 's':
				// Move hero down
				hero.y += hero.speed;
				break;
			case 'd':
				// Move hero right
				hero.x += hero.speed;
				break;
		}
	});
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].update();
		if (enemies[i].intersects(hero)) {
			hero.takeDamage(10);
			enemies[i].destroy();
			enemies.splice(i, 1);
		}
	}
	// Update bullets
	for (var j = bullets.length - 1; j >= 0; j--) {
		bullets[j].update();
		for (var k = enemies.length - 1; k >= 0; k--) {
			if (bullets[j].intersects(enemies[k])) {
				enemies[k].takeDamage(20);
				bullets[j].destroy();
				bullets.splice(j, 1);
				break;
			}
		}
	}
	// Spawn enemies periodically
	if (LK.ticks % 60 == 0) {
		spawnEnemy();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -126,13 +126,13 @@
 	LK.on('keydown', function (event) {
 		switch (event.key) {
 			case 'w':
 				// Move hero up
-				hero.y -= hero.speed;
+				hero.y += hero.speed;
 				break;
 			case 'a':
 				// Move hero left
-				hero.x -= hero.speed;
+				hero.x += hero.speed;
 				break;
 			case 's':
 				// Move hero down
 				hero.y += hero.speed;