/**** 
* Classes
****/ 
// Define a class for coins
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.collect = function () {
		if (!self.collected) {
			self.collected = true;
			self.destroy();
			LK.setScore(LK.getScore() + 1);
		}
	};
});
// Define a class for enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
// Define a class for the player character
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.jumpHeight = 20;
	self.isJumping = false;
	self.velocityY = 0;
	self.update = function () {
		if (self.isJumping) {
			self.y += self.velocityY;
			self.velocityY += 1; // Gravity effect
			if (self.y >= 200) {
				// Ground level
				self.y = 200;
				self.isJumping = false;
				self.velocityY = 0;
			}
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.velocityY = -self.jumpHeight;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Sky blue background
});

/**** 
* Game Code
****/ 
// Initialize player
var player = game.addChild(new Player());
player.x = 200;
player.y = 200;
// Initialize coins
var coins = [];
for (var i = 0; i < 5; i++) {
	var coin = new Coin();
	coin.x = 400 + i * 200;
	coin.y = 150;
	coins.push(coin);
	game.addChild(coin);
}
// Initialize enemies
var enemies = [];
var enemySpawnInterval = 100;
var enemySpawnCounter = 0;
// Handle game updates
game.update = function () {
	player.update();
	// Check for coin collection
	for (var i = coins.length - 1; i >= 0; i--) {
		if (player.intersects(coins[i])) {
			coins[i].collect();
			coins.splice(i, 1);
		}
	}
	// Spawn enemies
	enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048;
		enemy.y = 200;
		enemies.push(enemy);
		game.addChild(enemy);
		enemySpawnCounter = 0;
	}
	// Update enemies
	for (var j = enemies.length - 1; j >= 0; j--) {
		enemies[j].update();
		if (player.intersects(enemies[j])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	}
};
// Handle player jump
game.down = function (x, y, obj) {
	player.jump();
};

===================================================================
--- original.js
+++ change.js
@@ -40,9 +40,9 @@
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.speed = 10;
-	self.jumpHeight = 15;
+	self.jumpHeight = 20;
 	self.isJumping = false;
 	self.velocityY = 0;
 	self.update = function () {
 		if (self.isJumping) {