/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y -= self.speed;
	};
	return self;
});
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.health = 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2400;
var bullets = [];
var enemies = [];
var gameActive = true;
var spawnRate = 60;
var difficultyMultiplier = 1;
var scoreTxt = new Text2('0', {
	size: 80,
	fill: '#ffffff'
});
scoreTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(scoreTxt);
var difficultyTxt = new Text2('Wave: 1', {
	size: 80,
	fill: '#ffffff'
});
difficultyTxt.anchor.set(0, 0);
LK.gui.bottom.addChild(difficultyTxt);
function spawnEnemy() {
	var enemy = game.addChild(new Enemy());
	enemy.x = Math.random() * 1800 + 100;
	enemy.y = -60;
	enemy.speed = 2 + difficultyMultiplier * 0.5;
	enemy.lastY = enemy.y;
	enemies.push(enemy);
}
function updateScore() {
	scoreTxt.setText('Score: ' + LK.getScore());
	var wave = Math.floor(LK.getScore() / 10) + 1;
	difficultyTxt.setText('Wave: ' + wave);
	difficultyMultiplier = 1 + (wave - 1) * 0.3;
	spawnRate = Math.max(20, 60 - (wave - 1) * 3);
}
var dragNode = null;
function handleMove(x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
		dragNode.y = y;
		if (dragNode.x < 40) dragNode.x = 40;
		if (dragNode.x > 2048 - 40) dragNode.x = 2048 - 40;
		if (dragNode.y < 2400) dragNode.y = 2400;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	dragNode = player;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
game.update = function () {
	if (!gameActive) return;
	// Spawn enemies
	if (LK.ticks % spawnRate === 0) {
		spawnEnemy();
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		if (bullet.lastY === undefined) {
			bullet.lastY = bullet.y;
		}
		// Check if bullet is off-screen
		if (bullet.lastY >= -20 && bullet.y < -20) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check bullet-enemy collisions
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				LK.getSound('hit').play();
				LK.setScore(LK.getScore() + 1);
				updateScore();
				bullet.destroy();
				bullets.splice(i, 1);
				enemy.destroy();
				enemies.splice(j, 1);
				break;
			}
		}
		bullet.lastY = bullet.y;
	}
	// Update enemies
	for (var k = enemies.length - 1; k >= 0; k--) {
		var enemy = enemies[k];
		if (enemy.lastY === undefined) {
			enemy.lastY = enemy.y;
			enemy.lastIntersecting = false;
		}
		// Check if enemy is off-screen (bottom)
		if (enemy.lastY <= 2732 + 60 && enemy.y > 2732 + 60) {
			enemy.destroy();
			enemies.splice(k, 1);
			continue;
		}
		// Check player-enemy collision
		var currentIntersecting = enemy.intersects(player);
		if (!enemy.lastIntersecting && currentIntersecting) {
			gameActive = false;
			LK.effects.flashScreen(0xff0000, 500);
			LK.showGameOver();
			return;
		}
		enemy.lastY = enemy.y;
		enemy.lastIntersecting = currentIntersecting;
	}
	// Fire bullets
	if (LK.ticks % 15 === 0) {
		var newBullet = game.addChild(new Bullet());
		newBullet.x = player.x;
		newBullet.y = player.y - 40;
		newBullet.lastY = newBullet.y;
		bullets.push(newBullet);
		LK.getSound('shoot').play();
	}
};
LK.playMusic('bgmusic', {
	loop: true
});

===================================================================
--- original.js
+++ change.js
@@ -57,13 +57,13 @@
 var enemies = [];
 var gameActive = true;
 var spawnRate = 60;
 var difficultyMultiplier = 1;
-var scoreTxt = new Text2('Score: 0', {
-	size: 120,
+var scoreTxt = new Text2('0', {
+	size: 80,
 	fill: '#ffffff'
 });
-scoreTxt.anchor.set(0, 0);
+scoreTxt.anchor.set(1, 0);
 LK.gui.topRight.addChild(scoreTxt);
 var difficultyTxt = new Text2('Wave: 1', {
 	size: 80,
 	fill: '#ffffff'