===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,497 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Boss = Container.expand(function () {
+	var self = Container.call(this);
+	self.maxHealth = 100;
+	self.health = self.maxHealth;
+	self.attackCooldown = 0;
+	self.movePattern = 0;
+	self.speed = 2;
+	self.damage = 10;
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xffffff, 200);
+		LK.getSound('bossHit').play();
+		if (self.health <= 0) {
+			self.health = 0;
+			self.onDefeat();
+		}
+	};
+	self.onDefeat = function () {
+		LK.getSound('bossDefeat').play();
+		bossDefeated = true;
+		LK.setScore(LK.getScore() + 100 * currentBossLevel);
+	};
+	return self;
+});
+var FinalBoss = Boss.expand(function () {
+	var self = Boss.call(this);
+	var graphics = self.attachAsset('finalBoss', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 800;
+	self.health = self.maxHealth;
+	self.phase = 1;
+	self.phaseTimer = 0;
+	self.speed = 2;
+	self.update = function () {
+		self.phaseTimer++;
+		if (self.phase == 1) {
+			// Phase 1: Slow movement, regular attacks
+			self.x += Math.sin(self.phaseTimer * 0.01) * 2;
+			self.attackCooldown--;
+			if (self.attackCooldown <= 0) {
+				self.phase1Attack();
+				self.attackCooldown = 60;
+			}
+			if (self.health < self.maxHealth * 0.5) {
+				self.phase = 2;
+				self.phaseTimer = 0;
+			}
+		} else if (self.phase == 2) {
+			// Phase 2: Aggressive attacks
+			self.attackCooldown--;
+			if (self.attackCooldown <= 0) {
+				self.phase2Attack();
+				self.attackCooldown = 30;
+			}
+		}
+	};
+	self.phase1Attack = function () {
+		// Triple spread shot
+		for (var i = -2; i <= 2; i++) {
+			var bullet = new BossBullet();
+			bullet.x = self.x;
+			bullet.y = self.y + 150;
+			bullet.targetX = player.x + i * 100;
+			bullet.targetY = player.y;
+			bossBullets.push(bullet);
+			game.addChild(bullet);
+		}
+	};
+	self.phase2Attack = function () {
+		// Radial burst + laser
+		for (var i = 0; i < 12; i++) {
+			var bullet = new BossBullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			var angle = i / 12 * Math.PI * 2;
+			bullet.targetX = self.x + Math.cos(angle) * 600;
+			bullet.targetY = self.y + Math.sin(angle) * 600;
+			bossBullets.push(bullet);
+			game.addChild(bullet);
+		}
+		if (self.phaseTimer % 120 == 0) {
+			var laser = new BossLaser();
+			laser.x = player.x;
+			laser.y = 0;
+			bossLasers.push(laser);
+			game.addChild(laser);
+		}
+	};
+	self.onDefeat = function () {
+		LK.getSound('bossDefeat').play();
+		LK.setScore(LK.getScore() + 1000);
+		LK.showYouWin();
+	};
+	return self;
+});
+var Boss3 = Boss.expand(function () {
+	var self = Boss.call(this);
+	var graphics = self.attachAsset('boss3', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 400;
+	self.health = self.maxHealth;
+	self.speed = 4;
+	self.laserCooldown = 0;
+	self.update = function () {
+		// Aggressive movement toward player
+		var dx = player.x - self.x;
+		var dy = player.y - self.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance > 0) {
+			self.x += dx / distance * self.speed * 0.5;
+			self.y += dy / distance * self.speed * 0.3;
+		}
+		// Multiple attack patterns
+		self.attackCooldown--;
+		self.laserCooldown--;
+		if (self.attackCooldown <= 0) {
+			self.attack();
+			self.attackCooldown = 45;
+		}
+		if (self.laserCooldown <= 0) {
+			self.laserAttack();
+			self.laserCooldown = 180;
+		}
+	};
+	self.attack = function () {
+		// Radial shot
+		for (var i = 0; i < 8; i++) {
+			var bullet = new BossBullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			var angle = i / 8 * Math.PI * 2;
+			bullet.targetX = self.x + Math.cos(angle) * 500;
+			bullet.targetY = self.y + Math.sin(angle) * 500;
+			bossBullets.push(bullet);
+			game.addChild(bullet);
+		}
+	};
+	self.laserAttack = function () {
+		var laser = new BossLaser();
+		laser.x = self.x;
+		laser.y = self.y + 100;
+		bossLasers.push(laser);
+		game.addChild(laser);
+	};
+	return self;
+});
+var Boss2 = Boss.expand(function () {
+	var self = Boss.call(this);
+	var graphics = self.attachAsset('boss2', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 250;
+	self.health = self.maxHealth;
+	self.speed = 3;
+	self.angle = 0;
+	self.update = function () {
+		// Circular movement
+		self.angle += 0.02;
+		self.x = 1024 + Math.cos(self.angle) * 300;
+		self.y = 600 + Math.sin(self.angle) * 200;
+		// Faster shooting
+		self.attackCooldown--;
+		if (self.attackCooldown <= 0) {
+			self.attack();
+			self.attackCooldown = 60;
+		}
+	};
+	self.attack = function () {
+		// Spread shot
+		for (var i = -1; i <= 1; i++) {
+			var bullet = new BossBullet();
+			bullet.x = self.x;
+			bullet.y = self.y + 90;
+			bullet.targetX = player.x + i * 150;
+			bullet.targetY = player.y;
+			bossBullets.push(bullet);
+			game.addChild(bullet);
+		}
+	};
+	return self;
+});
+var Boss1 = Boss.expand(function () {
+	var self = Boss.call(this);
+	var graphics = self.attachAsset('boss1', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 150;
+	self.health = self.maxHealth;
+	self.moveDirection = 1;
+	self.update = function () {
+		// Simple horizontal movement
+		self.x += self.speed * self.moveDirection;
+		if (self.x > 1800 || self.x < 250) {
+			self.moveDirection *= -1;
+		}
+		// Simple shooting pattern
+		self.attackCooldown--;
+		if (self.attackCooldown <= 0) {
+			self.attack();
+			self.attackCooldown = 90;
+		}
+	};
+	self.attack = function () {
+		var bullet = new BossBullet();
+		bullet.x = self.x;
+		bullet.y = self.y + 75;
+		bullet.targetX = player.x;
+		bullet.targetY = player.y;
+		bossBullets.push(bullet);
+		game.addChild(bullet);
+	};
+	return self;
+});
+var BossBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('bossBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 6;
+	self.targetX = 0;
+	self.targetY = 0;
+	self.velocityX = 0;
+	self.velocityY = 0;
+	self.update = function () {
+		if (self.velocityX == 0 && self.velocityY == 0) {
+			var dx = self.targetX - self.x;
+			var dy = self.targetY - self.y;
+			var distance = Math.sqrt(dx * dx + dy * dy);
+			if (distance > 0) {
+				self.velocityX = dx / distance * self.speed;
+				self.velocityY = dy / distance * self.speed;
+			}
+		}
+		self.x += self.velocityX;
+		self.y += self.velocityY;
+	};
+	return self;
+});
+var BossLaser = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('bossLaser', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lifetime = 120;
+	self.update = function () {
+		self.lifetime--;
+		graphics.alpha = self.lifetime / 120;
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 100;
+	self.health = self.maxHealth;
+	self.shootCooldown = 0;
+	self.speed = 8;
+	self.update = function () {
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+	};
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xff0000, 300);
+		LK.getSound('hit').play();
+		if (self.health <= 0) {
+			self.health = 0;
+			isGameOver = true;
+		}
+	};
+	self.shoot = function () {
+		if (self.shootCooldown <= 0) {
+			var bullet = new PlayerBullet();
+			bullet.x = self.x;
+			bullet.y = self.y - 50;
+			playerBullets.push(bullet);
+			game.addChild(bullet);
+			self.shootCooldown = 10;
+			LK.getSound('shoot').play();
+		}
+	};
+	return self;
+});
+var PlayerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('playerBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -12;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+var player;
+var currentBoss;
+var currentBossLevel = 1;
+var playerBullets = [];
+var bossBullets = [];
+var bossLasers = [];
+var bossDefeated = false;
+var isGameOver = false;
+var transitionTimer = 0;
+var dragNode = null;
+// UI Elements
+var healthBar;
+var bossHealthBar;
+var levelText;
+var instructionText;
+// Initialize UI
+healthBar = new Text2('Health: 100', {
+	size: 60,
+	fill: 0x00FF00
+});
+healthBar.anchor.set(0, 0);
+LK.gui.topLeft.addChild(healthBar);
+bossHealthBar = new Text2('Boss Health: 0', {
+	size: 60,
+	fill: 0xFF0000
+});
+bossHealthBar.anchor.set(0.5, 0);
+LK.gui.top.addChild(bossHealthBar);
+levelText = new Text2('Boss Level: 1', {
+	size: 80,
+	fill: 0xFFFF00
+});
+levelText.anchor.set(1, 0);
+LK.gui.topRight.addChild(levelText);
+instructionText = new Text2('Drag to move, tap to shoot!', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+instructionText.anchor.set(0.5, 1);
+LK.gui.bottom.addChild(instructionText);
+// Initialize player
+player = game.addChild(new Player());
+player.x = 1024;
+player.y = 2200;
+// Start first boss
+function spawnBoss() {
+	if (currentBoss) {
+		currentBoss.destroy();
+	}
+	bossDefeated = false;
+	transitionTimer = 0;
+	// Clear bullets
+	for (var i = bossBullets.length - 1; i >= 0; i--) {
+		bossBullets[i].destroy();
+		bossBullets.splice(i, 1);
+	}
+	// Spawn appropriate boss
+	if (currentBossLevel == 1) {
+		currentBoss = game.addChild(new Boss1());
+		currentBoss.x = 1024;
+		currentBoss.y = 400;
+	} else if (currentBossLevel == 2) {
+		currentBoss = game.addChild(new Boss2());
+		currentBoss.x = 1024;
+		currentBoss.y = 600;
+	} else if (currentBossLevel == 3) {
+		currentBoss = game.addChild(new Boss3());
+		currentBoss.x = 1024;
+		currentBoss.y = 500;
+	} else if (currentBossLevel >= 4) {
+		currentBoss = game.addChild(new FinalBoss());
+		currentBoss.x = 1024;
+		currentBoss.y = 400;
+	}
+	levelText.setText('Boss Level: ' + currentBossLevel);
+}
+spawnBoss();
+// Play battle music
+LK.playMusic('battleMusic');
+// Event handlers
+function handleMove(x, y, obj) {
+	if (dragNode && !isGameOver) {
+		dragNode.x = Math.max(40, Math.min(2008, x));
+		dragNode.y = Math.max(1000, Math.min(2692, y));
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	if (!isGameOver) {
+		dragNode = player;
+		handleMove(x, y, obj);
+		player.shoot();
+	}
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Main game loop
+game.update = function () {
+	if (isGameOver) {
+		LK.showGameOver();
+		return;
+	}
+	// Handle boss transition
+	if (bossDefeated) {
+		transitionTimer++;
+		if (transitionTimer > 120) {
+			currentBossLevel++;
+			if (currentBossLevel > 4) {
+				currentBossLevel = 4; // Stay at final boss
+			}
+			spawnBoss();
+			// Heal player slightly between bosses
+			player.health = Math.min(player.maxHealth, player.health + 20);
+		}
+	}
+	// Update player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		if (bullet.y < -50) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with boss
+		if (currentBoss && bullet.intersects(currentBoss)) {
+			currentBoss.takeDamage(25);
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+	}
+	// Update boss bullets
+	for (var i = bossBullets.length - 1; i >= 0; i--) {
+		var bullet = bossBullets[i];
+		if (bullet.x < -50 || bullet.x > 2098 || bullet.y < -50 || bullet.y > 2782) {
+			bullet.destroy();
+			bossBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bullet.intersects(player)) {
+			player.takeDamage(15);
+			bullet.destroy();
+			bossBullets.splice(i, 1);
+			continue;
+		}
+	}
+	// Update boss lasers
+	for (var i = bossLasers.length - 1; i >= 0; i--) {
+		var laser = bossLasers[i];
+		if (laser.lifetime <= 0) {
+			laser.destroy();
+			bossLasers.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (laser.intersects(player)) {
+			player.takeDamage(2); // Continuous damage
+		}
+	}
+	// Update UI
+	healthBar.setText('Health: ' + player.health);
+	if (currentBoss) {
+		bossHealthBar.setText('Boss Health: ' + currentBoss.health);
+	}
+	// Auto-shoot
+	if (LK.ticks % 15 == 0 && !isGameOver) {
+		player.shoot();
+	}
+};
\ No newline at end of file