/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.75,
		scaleY: 0.75
	});
	self.speed = -10;
	self.speedX = 0;
	self.speedY = self.speed;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
	};
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2.0,
		scaleY: 2.0
	});
	self.speed = 2;
	self.update = function () {
		// Mimic player movement logic for enemy
		self.x += Math.sin(self.y / 50) * self.speed * 2; // Zigzag horizontal movement
		self.y += self.speed; // Continue downward movement
	};
});
// The assets will be automatically created and loaded by the LK engine
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2.0,
		scaleY: 2.0
	});
	self.speed = 5;
	self.update = function () {
		// Player movement logic goes here
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.0,
		scaleY: 1.0
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
	};
});
// Rubbish class
var Rubbish = Container.expand(function () {
	var self = Container.call(this);
	var rubbishGraphics = self.attachAsset('rubbish', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.0,
		scaleY: 1.0
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
	};
});

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

/**** 
* Game Code
****/ 
// Initialize player, bullets and enemies
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 - 100;
var bullets = [];
var enemies = [];
var score = 0;
var lives = 5;
var scoreText = new Text2('Score: 0', {
	size: 100,
	fill: "#ffffff"
});
scoreText.x = 2048 - 500; // Move score display further to the left
scoreText.y = 50; // Slightly lower from the top
game.addChild(scoreText);
var hearts = [];
for (var i = 0; i < lives; i++) {
	var heart = LK.getAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.5,
		scaleY: 0.5,
		x: 40 + i * 60,
		y: 80
	});
	hearts.push(heart);
	game.addChild(heart);
}
// Game update function
game.update = function () {
	// Player movement logic
	game.move = function (x, y, obj) {
		player.x = x;
		player.y = y;
	};
	// Shooting logic
	if (LK.ticks % 10 == 0) {
		// Fire a bullet every 10 ticks
		var bullet = new Bullet();
		bullet.x = player.x;
		bullet.y = player.y;
		bullets.push(bullet);
		game.addChild(bullet);
	}
	// Enemy, power-up, and rubbish spawning logic
	if (LK.ticks % Math.max(60, 120 - Math.floor(score / 10)) == 0) {
		for (var i = 0; i < Math.min(5, 1 + Math.floor(score / 50)); i++) {
			var enemy = new Enemy();
			enemy.x = Math.random() * 2048;
			enemy.y = 0;
			enemies.push(enemy);
			game.addChild(enemy);
		}
		// Randomly throw power-ups
		if (Math.random() < 0.3) {
			// 30% chance to throw a power-up
			var powerUp = new PowerUp();
			powerUp.x = enemy.x;
			powerUp.y = enemy.y;
			// Ensure power-up does not overlap with rubbish
			var overlap = false;
			for (var i = 0; i < game.children.length; i++) {
				if (game.children[i] instanceof Rubbish && powerUp.intersects(game.children[i])) {
					overlap = true;
					break;
				}
			}
			if (!overlap) {
				game.addChild(powerUp);
			}
		}
		// Randomly throw rubbish
		if (Math.random() < 0.5) {
			// 50% chance to throw rubbish
			var rubbish = new Rubbish();
			rubbish.x = enemy.x;
			rubbish.y = enemy.y;
			// Ensure rubbish does not overlap with power-ups
			var overlap = false;
			for (var i = 0; i < game.children.length; i++) {
				if (game.children[i] instanceof PowerUp && rubbish.intersects(game.children[i])) {
					overlap = true;
					break;
				}
			}
			if (!overlap) {
				game.addChild(rubbish);
			}
		}
	}
	// Bullet and enemy update logic
	for (var i = bullets.length - 1; i >= 0; i--) {
		if (bullets[i].y < 0) {
			bullets[i].destroy();
			bullets.splice(i, 1);
		}
	}
	for (var i = enemies.length - 1; i >= 0; i--) {
		if (enemies[i].y > 2732) {
			enemies[i].destroy();
			enemies.splice(i, 1);
		}
	}
	// Collision detection
	for (var i = bullets.length - 1; i >= 0; i--) {
		for (var j = enemies.length - 1; j >= 0; j--) {
			if (bullets[i].intersects(enemies[j])) {
				bullets[i].destroy();
				bullets.splice(i, 1);
				enemies[j].destroy();
				enemies.splice(j, 1);
				score += 10;
				scoreText.setText('Score: ' + score);
				break;
			}
		}
	}
	// Check for collision between player and enemies
	for (var j = enemies.length - 1; j >= 0; j--) {
		if (player.intersects(enemies[j])) {
			enemies[j].destroy();
			enemies.splice(j, 1);
			lives -= 1;
			if (hearts.length > lives) {
				var heartToRemove = hearts.pop();
				heartToRemove.destroy();
			}
			if (lives <= 0) {
				// Show game over
				LK.showGameOver();
			}
		}
	}
	// Power-up collection and rubbish collision
	for (var i = 0; i < game.children.length; i++) {
		var child = game.children[i];
		if (child instanceof PowerUp && player.intersects(child)) {
			child.destroy();
			// Implement power-up effect: scatter bullets
			for (var angle = 0; angle < 360; angle += 45) {
				var scatterBullet = new Bullet();
				scatterBullet.x = player.x;
				scatterBullet.y = player.y;
				scatterBullet.speedX = Math.cos(angle * Math.PI / 180) * 10;
				scatterBullet.speedY = Math.sin(angle * Math.PI / 180) * 10;
				scatterBullet.update = function () {
					this.x += this.speedX;
					this.y += this.speedY;
				};
				bullets.push(scatterBullet);
				game.addChild(scatterBullet);
			}
		} else if (child instanceof Rubbish && player.intersects(child)) {
			child.destroy();
			// Decrease life by 1
			lives -= 1;
			if (hearts.length > lives) {
				var heartToRemove = hearts.pop();
				heartToRemove.destroy();
			}
			if (lives <= 0) {
				// Show game over
				LK.showGameOver();
			}
		}
	}
	// Increase enemy speed after score reaches 100
	if (score >= 100) {
		for (var i = 0; i < enemies.length; i++) {
			enemies[i].speed += 0.01; // Gradually increase speed
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -132,14 +132,16 @@
 		bullets.push(bullet);
 		game.addChild(bullet);
 	}
 	// Enemy, power-up, and rubbish spawning logic
-	if (LK.ticks % 120 == 0) {
-		var enemy = new Enemy();
-		enemy.x = Math.random() * 2048;
-		enemy.y = 0;
-		enemies.push(enemy);
-		game.addChild(enemy);
+	if (LK.ticks % Math.max(60, 120 - Math.floor(score / 10)) == 0) {
+		for (var i = 0; i < Math.min(5, 1 + Math.floor(score / 50)); i++) {
+			var enemy = new Enemy();
+			enemy.x = Math.random() * 2048;
+			enemy.y = 0;
+			enemies.push(enemy);
+			game.addChild(enemy);
+		}
 		// Randomly throw power-ups
 		if (Math.random() < 0.3) {
 			// 30% chance to throw a power-up
 			var powerUp = new PowerUp();