===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,355 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Artifact = Container.expand(function () {
+	var self = Container.call(this);
+	var artifactGraphics = self.attachAsset('artifact', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.collected = false;
+	self.lifeTime = 0;
+	self.collect = function () {
+		if (!self.collected) {
+			self.collected = true;
+			LK.getSound('powerUp').play();
+			LK.setScore(LK.getScore() + 100);
+			// Heal hero
+			hero.health = Math.min(hero.maxHealth, hero.health + 20);
+			// Remove from artifacts array
+			for (var i = artifacts.length - 1; i >= 0; i--) {
+				if (artifacts[i] === self) {
+					artifacts.splice(i, 1);
+					break;
+				}
+			}
+			tween(self, {
+				scaleX: 0,
+				scaleY: 0
+			}, {
+				duration: 200,
+				onFinish: function onFinish() {
+					self.destroy();
+				}
+			});
+		}
+	};
+	self.update = function () {
+		self.lifeTime++;
+		self.rotation += 0.1;
+		// Pulse effect
+		var pulse = Math.sin(self.lifeTime * 0.2) * 0.2 + 1;
+		self.scaleX = pulse;
+		self.scaleY = pulse;
+		// Despawn after 10 seconds
+		if (self.lifeTime > 600) {
+			for (var i = artifacts.length - 1; i >= 0; i--) {
+				if (artifacts[i] === self) {
+					artifacts.splice(i, 1);
+					break;
+				}
+			}
+			self.destroy();
+		}
+	};
+	return self;
+});
+var Enemy = Container.expand(function (enemyType) {
+	var self = Container.call(this);
+	self.enemyType = enemyType || 'minotaur';
+	self.health = 1;
+	self.damage = 10;
+	self.speed = 2;
+	self.points = 10;
+	var enemyGraphics;
+	if (self.enemyType === 'minotaur') {
+		enemyGraphics = self.attachAsset('minotaur', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.health = 2;
+		self.speed = 1.5;
+		self.points = 15;
+	} else if (self.enemyType === 'harpy') {
+		enemyGraphics = self.attachAsset('harpy', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.health = 1;
+		self.speed = 3;
+		self.points = 20;
+	} else if (self.enemyType === 'cyclops') {
+		enemyGraphics = self.attachAsset('cyclops', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.health = 4;
+		self.speed = 1;
+		self.damage = 20;
+		self.points = 50;
+	}
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xFFFFFF, 200);
+		if (self.health <= 0) {
+			self.die();
+		}
+	};
+	self.die = function () {
+		LK.getSound('enemyHit').play();
+		LK.setScore(LK.getScore() + self.points);
+		// Chance to drop artifact
+		if (Math.random() < 0.15) {
+			var artifact = new Artifact();
+			artifact.x = self.x;
+			artifact.y = self.y;
+			artifacts.push(artifact);
+			game.addChild(artifact);
+		}
+		// Remove from enemies array
+		for (var i = enemies.length - 1; i >= 0; i--) {
+			if (enemies[i] === self) {
+				enemies.splice(i, 1);
+				break;
+			}
+		}
+		self.destroy();
+	};
+	self.update = function () {
+		// Move towards hero
+		var dx = hero.x - self.x;
+		var dy = hero.y - self.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance > 0) {
+			self.x += dx / distance * self.speed;
+			self.y += dy / distance * self.speed;
+		}
+	};
+	return self;
+});
+var Hero = Container.expand(function () {
+	var self = Container.call(this);
+	var heroGraphics = self.attachAsset('hero', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 100;
+	self.maxHealth = 100;
+	self.shootCooldown = 0;
+	self.speed = 8;
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xFF0000, 300);
+		if (self.health <= 0) {
+			gameOver = true;
+		}
+	};
+	self.shoot = function () {
+		if (self.shootCooldown <= 0) {
+			var bullet = new HeroBullet();
+			bullet.x = self.x;
+			bullet.y = self.y - 40;
+			heroBullets.push(bullet);
+			game.addChild(bullet);
+			LK.getSound('shoot').play();
+			self.shootCooldown = 10;
+		}
+	};
+	self.update = function () {
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+	};
+	return self;
+});
+var HeroBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('heroBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 12;
+	self.damage = 1;
+	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: 0x1a1a2e
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var hero;
+var heroBullets = [];
+var enemies = [];
+var artifacts = [];
+var enemySpawnTimer = 0;
+var gameOver = false;
+var dragActive = false;
+var waveLevel = 1;
+// UI
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+scoreTxt.x = 120;
+scoreTxt.y = 50;
+LK.gui.topLeft.addChild(scoreTxt);
+var healthTxt = new Text2('Health: 100', {
+	size: 60,
+	fill: 0xFF4444
+});
+healthTxt.anchor.set(1, 0);
+LK.gui.topRight.addChild(healthTxt);
+var waveTxt = new Text2('Wave: 1', {
+	size: 50,
+	fill: 0x44FF44
+});
+waveTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(waveTxt);
+// Initialize hero
+hero = new Hero();
+hero.x = 1024;
+hero.y = 2000;
+game.addChild(hero);
+// Spawn enemy function
+function spawnEnemy() {
+	var enemyTypes = ['minotaur', 'harpy', 'cyclops'];
+	var type = enemyTypes[Math.floor(Math.random() * enemyTypes.length)];
+	// Cyclops only spawn in later waves
+	if (type === 'cyclops' && waveLevel < 3) {
+		type = 'minotaur';
+	}
+	var enemy = new Enemy(type);
+	// Spawn from random edge
+	var side = Math.floor(Math.random() * 4);
+	if (side === 0) {
+		// Top
+		enemy.x = Math.random() * 2048;
+		enemy.y = -100;
+	} else if (side === 1) {
+		// Right
+		enemy.x = 2148;
+		enemy.y = Math.random() * 2732;
+	} else if (side === 2) {
+		// Bottom
+		enemy.x = Math.random() * 2048;
+		enemy.y = 2832;
+	} else {
+		// Left
+		enemy.x = -100;
+		enemy.y = Math.random() * 2732;
+	}
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+// Touch controls
+game.down = function (x, y, obj) {
+	dragActive = true;
+	hero.x = x;
+	hero.y = y;
+	hero.shoot();
+};
+game.move = function (x, y, obj) {
+	if (dragActive) {
+		hero.x = x;
+		hero.y = y;
+	}
+};
+game.up = function (x, y, obj) {
+	dragActive = false;
+};
+// Main game loop
+game.update = function () {
+	if (gameOver) {
+		LK.showGameOver();
+		return;
+	}
+	// Update hero
+	hero.update();
+	// Keep hero in bounds
+	hero.x = Math.max(40, Math.min(2008, hero.x));
+	hero.y = Math.max(40, Math.min(2692, hero.y));
+	// Auto-shoot
+	if (LK.ticks % 15 === 0) {
+		hero.shoot();
+	}
+	// Spawn enemies
+	enemySpawnTimer++;
+	var spawnRate = Math.max(30, 120 - waveLevel * 10);
+	if (enemySpawnTimer >= spawnRate) {
+		spawnEnemy();
+		enemySpawnTimer = 0;
+	}
+	// Update bullets
+	for (var i = heroBullets.length - 1; i >= 0; i--) {
+		var bullet = heroBullets[i];
+		bullet.update();
+		// Remove bullets that are off-screen
+		if (bullet.y < -50) {
+			bullet.destroy();
+			heroBullets.splice(i, 1);
+			continue;
+		}
+		// Check bullet vs enemy collisions
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (bullet.intersects(enemy)) {
+				enemy.takeDamage(bullet.damage);
+				bullet.destroy();
+				heroBullets.splice(i, 1);
+				break;
+			}
+		}
+	}
+	// Update enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		enemy.update();
+		// Check hero vs enemy collision
+		if (enemy.intersects(hero)) {
+			hero.takeDamage(enemy.damage);
+			enemy.die();
+		}
+		// Remove enemies that are too far off-screen
+		if (enemy.x < -200 || enemy.x > 2248 || enemy.y < -200 || enemy.y > 2932) {
+			enemies.splice(i, 1);
+			enemy.destroy();
+		}
+	}
+	// Update artifacts
+	for (var i = artifacts.length - 1; i >= 0; i--) {
+		var artifact = artifacts[i];
+		artifact.update();
+		// Check hero vs artifact collision
+		if (artifact.intersects(hero)) {
+			artifact.collect();
+		}
+	}
+	// Update wave level based on score
+	var newWaveLevel = Math.floor(LK.getScore() / 500) + 1;
+	if (newWaveLevel > waveLevel) {
+		waveLevel = newWaveLevel;
+		LK.effects.flashScreen(0x00FF00, 500);
+	}
+	// Update UI
+	scoreTxt.setText('Score: ' + LK.getScore());
+	healthTxt.setText('Health: ' + hero.health);
+	waveTxt.setText('Wave: ' + waveLevel);
+};
+// Start background music
+LK.playMusic('dungeonMusic');
\ No newline at end of file