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

/**** 
* Classes
****/ 
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var EnemyShip = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyShip', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.movePattern = Math.random() < 0.5 ? 'straight' : 'zigzag';
	self.zigzagTimer = 0;
	self.zigzagDirection = Math.random() < 0.5 ? -1 : 1;
	self.shootTimer = Math.random() * 60 + 60; // Random initial shoot delay
	self.maxHealth = 3;
	self.health = self.maxHealth;
	// Create health bar background
	var healthBarBg = self.attachAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	healthBarBg.y = -50;
	// Create health bar fill
	var healthBarFill = self.attachAsset('healthBarFill', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	healthBarFill.y = -50;
	self.healthBarFill = healthBarFill;
	// Method to update health bar
	self.updateHealthBar = function () {
		var healthPercent = self.health / self.maxHealth;
		self.healthBarFill.scaleX = healthPercent;
		if (healthPercent > 0.6) {
			self.healthBarFill.tint = 0x00ff00; // Green
		} else if (healthPercent > 0.3) {
			self.healthBarFill.tint = 0xffff00; // Yellow
		} else {
			self.healthBarFill.tint = 0xff0000; // Red
		}
	};
	self.update = function () {
		self.y += self.speed;
		if (self.movePattern === 'zigzag') {
			self.zigzagTimer += 1;
			if (self.zigzagTimer % 60 === 0) {
				self.zigzagDirection *= -1;
			}
			self.x += self.zigzagDirection * 2;
		}
		// Keep enemy within screen bounds
		if (self.x < 50) self.x = 50;
		if (self.x > 1998) self.x = 1998;
		// Handle shooting
		self.shootTimer--;
		if (self.shootTimer <= 0) {
			self.shootTimer = Math.random() * 60 + 30; // Faster random shoot interval
			self.shouldShoot = true;
		}
	};
	return self;
});
var PlayerBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('playerBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -12;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PlayerShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.attachAsset('playerShip', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000011
});

/**** 
* Game Code
****/ 
// Game variables
var playerShip;
var playerBullets = [];
var enemyBullets = [];
var enemyShips = [];
var difficultyLevel = 1;
var enemySpawnRate = 120; // frames between spawns
var bulletFireRate = 15; // frames between shots
var dragNode = null;
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Initialize player ship
playerShip = game.addChild(new PlayerShip());
playerShip.x = 1024; // Center horizontally
playerShip.y = 2400; // Near bottom of screen
// Update score display
function updateScore() {
	scoreTxt.setText('Score: ' + LK.getScore());
}
// Handle movement
function handleMove(x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
		dragNode.y = y;
		// Keep player within screen bounds
		if (dragNode.x < 40) dragNode.x = 40;
		if (dragNode.x > 2008) dragNode.x = 2008;
		if (dragNode.y < 200) dragNode.y = 200;
		if (dragNode.y > 2600) dragNode.y = 2600;
	}
}
// Event handlers
game.move = handleMove;
game.down = function (x, y, obj) {
	dragNode = playerShip;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Main game update loop
game.update = function () {
	// Fire player bullets
	if (LK.ticks % bulletFireRate === 0) {
		var newBullet = new PlayerBullet();
		newBullet.x = playerShip.x;
		newBullet.y = playerShip.y - 60;
		newBullet.lastY = newBullet.y;
		playerBullets.push(newBullet);
		game.addChild(newBullet);
		LK.getSound('shoot').play();
	}
	// Spawn enemies
	if (LK.ticks % enemySpawnRate === 0) {
		var newEnemy = new EnemyShip();
		newEnemy.x = Math.random() * 1800 + 124; // Random x position within bounds
		newEnemy.y = -50;
		newEnemy.lastY = newEnemy.y;
		newEnemy.lastIntersecting = false;
		enemyShips.push(newEnemy);
		game.addChild(newEnemy);
	}
	// Update and check player bullets
	for (var i = playerBullets.length - 1; i >= 0; i--) {
		var bullet = playerBullets[i];
		// Remove bullets that go off screen
		if (bullet.lastY >= -25 && bullet.y < -25) {
			bullet.destroy();
			playerBullets.splice(i, 1);
			continue;
		}
		// Check bullet-enemy collisions
		var bulletHit = false;
		for (var j = enemyShips.length - 1; j >= 0; j--) {
			var enemy = enemyShips[j];
			if (bullet.intersects(enemy)) {
				// Damage enemy
				enemy.health--;
				enemy.updateHealthBar();
				LK.setScore(LK.getScore() + 5);
				updateScore();
				// Flash effect on enemy
				LK.effects.flashObject(enemy, 0xffffff, 200);
				bullet.destroy();
				playerBullets.splice(i, 1);
				bulletHit = true;
				// Check if enemy is destroyed
				if (enemy.health <= 0) {
					LK.setScore(LK.getScore() + 5); // Bonus points for destroying enemy
					updateScore();
					LK.getSound('enemyDestroy').play();
					enemy.destroy();
					enemyShips.splice(j, 1);
				}
				break;
			}
		}
		if (!bulletHit) {
			bullet.lastY = bullet.y;
		}
	}
	// Update and check enemies
	for (var k = enemyShips.length - 1; k >= 0; k--) {
		var enemy = enemyShips[k];
		// Create enemy bullet if enemy should shoot
		if (enemy.shouldShoot) {
			var newEnemyBullet = new EnemyBullet();
			newEnemyBullet.x = enemy.x;
			newEnemyBullet.y = enemy.y + 40;
			newEnemyBullet.lastY = newEnemyBullet.y;
			newEnemyBullet.lastIntersecting = false;
			enemyBullets.push(newEnemyBullet);
			game.addChild(newEnemyBullet);
			enemy.shouldShoot = false;
		}
		// Remove enemies that go off screen
		if (enemy.lastY <= 2780 && enemy.y > 2780) {
			enemy.destroy();
			enemyShips.splice(k, 1);
			continue;
		}
		// Check player-enemy collision
		var currentIntersecting = enemy.intersects(playerShip);
		if (!enemy.lastIntersecting && currentIntersecting) {
			// Game over
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		enemy.lastY = enemy.y;
		enemy.lastIntersecting = currentIntersecting;
	}
	// Update and check enemy bullets
	for (var m = enemyBullets.length - 1; m >= 0; m--) {
		var enemyBullet = enemyBullets[m];
		// Remove bullets that go off screen
		if (enemyBullet.lastY <= 2780 && enemyBullet.y > 2780) {
			enemyBullet.destroy();
			enemyBullets.splice(m, 1);
			continue;
		}
		// Check enemy bullet-player collision
		var bulletPlayerIntersecting = enemyBullet.intersects(playerShip);
		if (!enemyBullet.lastIntersecting && bulletPlayerIntersecting) {
			// Game over
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		enemyBullet.lastY = enemyBullet.y;
		enemyBullet.lastIntersecting = bulletPlayerIntersecting;
	}
	// Increase difficulty over time
	if (LK.ticks % 1800 === 0) {
		// Every 30 seconds
		difficultyLevel++;
		if (enemySpawnRate > 30) {
			enemySpawnRate -= 10;
		}
		if (bulletFireRate > 8 && difficultyLevel % 3 === 0) {
			bulletFireRate -= 1;
		}
	}
};
// Start background music
LK.playMusic('gameMusic');

===================================================================
--- original.js
+++ change.js
@@ -28,8 +28,35 @@
 	self.movePattern = Math.random() < 0.5 ? 'straight' : 'zigzag';
 	self.zigzagTimer = 0;
 	self.zigzagDirection = Math.random() < 0.5 ? -1 : 1;
 	self.shootTimer = Math.random() * 60 + 60; // Random initial shoot delay
+	self.maxHealth = 3;
+	self.health = self.maxHealth;
+	// Create health bar background
+	var healthBarBg = self.attachAsset('healthBarBg', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	healthBarBg.y = -50;
+	// Create health bar fill
+	var healthBarFill = self.attachAsset('healthBarFill', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	healthBarFill.y = -50;
+	self.healthBarFill = healthBarFill;
+	// Method to update health bar
+	self.updateHealthBar = function () {
+		var healthPercent = self.health / self.maxHealth;
+		self.healthBarFill.scaleX = healthPercent;
+		if (healthPercent > 0.6) {
+			self.healthBarFill.tint = 0x00ff00; // Green
+		} else if (healthPercent > 0.3) {
+			self.healthBarFill.tint = 0xffff00; // Yellow
+		} else {
+			self.healthBarFill.tint = 0xff0000; // Red
+		}
+	};
 	self.update = function () {
 		self.y += self.speed;
 		if (self.movePattern === 'zigzag') {
 			self.zigzagTimer += 1;
@@ -161,19 +188,26 @@
 		var bulletHit = false;
 		for (var j = enemyShips.length - 1; j >= 0; j--) {
 			var enemy = enemyShips[j];
 			if (bullet.intersects(enemy)) {
-				// Destroy both bullet and enemy
-				LK.setScore(LK.getScore() + 10);
+				// Damage enemy
+				enemy.health--;
+				enemy.updateHealthBar();
+				LK.setScore(LK.getScore() + 5);
 				updateScore();
-				LK.getSound('enemyDestroy').play();
 				// Flash effect on enemy
 				LK.effects.flashObject(enemy, 0xffffff, 200);
 				bullet.destroy();
 				playerBullets.splice(i, 1);
-				enemy.destroy();
-				enemyShips.splice(j, 1);
 				bulletHit = true;
+				// Check if enemy is destroyed
+				if (enemy.health <= 0) {
+					LK.setScore(LK.getScore() + 5); // Bonus points for destroying enemy
+					updateScore();
+					LK.getSound('enemyDestroy').play();
+					enemy.destroy();
+					enemyShips.splice(j, 1);
+				}
 				break;
 			}
 		}
 		if (!bulletHit) {