/**** 
* Classes
****/ 
// Alien class
var Alien = Container.expand(function () {
	var self = Container.call(this);
	var alienGraphics = self.attachAsset('alien', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + alienGraphics.height) {
			self.destroy();
		}
	};
});
// Explosion class
var Explosion = Container.expand(function () {
	var self = Container.call(this);
	var explosionGraphics = self.attachAsset('explosion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		explosionGraphics.alpha -= 0.02;
		if (explosionGraphics.alpha <= 0) {
			self.destroy();
		}
	};
});
// HeroBullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -15;
	self.update = function () {
		self.y += self.speed;
		if (self.y < -bulletGraphics.height) {
			self.destroy();
		}
	};
});
// Planet class
var Planet = Container.expand(function () {
	var self = Container.call(this);
	var planetGraphics = self.attachAsset('planet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + planetGraphics.height) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
// Spaceship class
var Spaceship = Container.expand(function () {
	var self = Container.call(this);
	var spaceshipGraphics = self.attachAsset('spaceship', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.shoot = function () {
		var bullet = new HeroBullet();
		bullet.x = self.x;
		bullet.y = self.y - spaceshipGraphics.height / 2;
		game.addChild(bullet);
		heroBullets.push(bullet);
	};
});

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

/**** 
* Game Code
****/ 
var spaceship = new Spaceship();
spaceship.x = 2048 / 2;
spaceship.y = 2732 - 200;
game.addChild(spaceship);
game.move = function (x, y, obj) {
	spaceship.x = x;
	spaceship.y = y;
};
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0); // Sets anchor to the center of the top edge of the text.
LK.gui.top.addChild(scoreTxt); // Add the score text to the GUI overlay.
var heroBullets = [];
var aliens = [];
// Create aliens at intervals
var alienInterval = LK.setInterval(function () {
	var alien = new Alien();
	alien.x = Math.random() * 2048;
	alien.y = -50;
	game.addChild(alien);
	aliens.push(alien);
}, 500); // Reduced the interval time to make more aliens appear
var planetInterval = LK.setInterval(function () {
	var planet = new Planet();
	planet.x = Math.random() * 2048;
	planet.y = -200;
	game.addChild(planet);
}, 5000);
// Handle spaceship movement
game.down = function (x, y, obj) {
	spaceship.x = x;
	spaceship.y = y;
	spaceship.shoot();
};
// Handle shooting
game.up = function (x, y, obj) {
	// Do nothing on mouse up
};
// Update game state
game.update = function () {
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		heroBullets[i].update();
		if (heroBullets[i].y < -50) {
			heroBullets[i].destroy();
			heroBullets.splice(i, 1);
		}
	}
	for (var j = aliens.length - 1; j >= 0; j--) {
		aliens[j].update();
		if (aliens[j].y > 2732 + 50) {
			aliens[j].destroy();
			aliens.splice(j, 1);
		}
	}
	// Check for collisions
	for (var k = heroBullets.length - 1; k >= 0; k--) {
		for (var l = aliens.length - 1; l >= 0; l--) {
			if (heroBullets[k].intersects(aliens[l])) {
				heroBullets[k].destroy();
				aliens[l].destroy();
				heroBullets.splice(k, 1);
				aliens.splice(l, 1);
				// Increase score by 1
				LK.setScore(LK.getScore() + 1);
				// Update score text
				scoreTxt.setText(LK.getScore());
				break;
			}
		}
	}
	// Check for collisions between spaceship and aliens
	for (var m = aliens.length - 1; m >= 0; m--) {
		if (spaceship.intersects(aliens[m])) {
			// Spaceship explodes
			LK.effects.flashObject(spaceship, 0xff0000, 500);
			// Play explosion sound
			LK.getSound('explosion').play();
			// Create explosion animation
			var explosion = new Explosion();
			explosion.x = spaceship.x;
			explosion.y = spaceship.y;
			game.addChild(explosion);
			// Remove spaceship
			spaceship.destroy();
			// Show "Game Over" message after 1 second
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 1000);
			break;
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -110,9 +110,9 @@
 	alien.x = Math.random() * 2048;
 	alien.y = -50;
 	game.addChild(alien);
 	aliens.push(alien);
-}, 1000);
+}, 500); // Reduced the interval time to make more aliens appear
 var planetInterval = LK.setInterval(function () {
 	var planet = new Planet();
 	planet.x = Math.random() * 2048;
 	planet.y = -200;