===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,430 @@
-/****
+/**** 
+* 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 = 12;
+	self.damage = 25;
+	self.direction = 1; // 1 for right, -1 for left
+	self.update = function () {
+		self.x += self.speed * self.direction;
+	};
+	return self;
+});
+var HealthPack = Container.expand(function () {
+	var self = Container.call(this);
+	var healthGraphics = self.attachAsset('healthPack', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.healAmount = 30;
+	self.update = function () {
+		// Simple floating animation
+		self.y += Math.sin(LK.ticks * 0.1) * 0.5;
+		// Check pickup
+		if (self.intersects(player)) {
+			player.heal(self.healAmount);
+			LK.getSound('pickup').play();
+			self.collected = true;
+		}
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.health = 100;
+	self.maxHealth = 100;
+	self.speed = 8;
+	self.jumpPower = 15;
+	self.velocityY = 0;
+	self.onGround = true;
+	self.weapon = 1;
+	self.maxWeapon = 3;
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		if (self.health <= 0) {
+			self.health = 0;
+			gameOver = true;
+		}
+		// Flash red when taking damage
+		LK.effects.flashObject(self, 0xFF0000, 500);
+	};
+	self.heal = function (amount) {
+		self.health = Math.min(self.maxHealth, self.health + amount);
+	};
+	self.upgradeWeapon = function () {
+		if (self.weapon < self.maxWeapon) {
+			self.weapon++;
+		}
+	};
+	self.update = function () {
+		// Apply gravity
+		if (!self.onGround) {
+			self.velocityY += 0.8;
+		}
+		// Update position
+		self.y += self.velocityY;
+		// Ground collision
+		if (self.y >= groundY) {
+			self.y = groundY;
+			self.velocityY = 0;
+			self.onGround = true;
+		}
+	};
+	return self;
+});
+var WeaponPickup = Container.expand(function () {
+	var self = Container.call(this);
+	var weaponGraphics = self.attachAsset('weaponPickup', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {
+		// Simple floating animation
+		self.y += Math.sin(LK.ticks * 0.1) * 0.5;
+		// Check pickup
+		if (self.intersects(player)) {
+			player.upgradeWeapon();
+			LK.getSound('pickup').play();
+			self.collected = true;
+		}
+	};
+	return self;
+});
+var Zombie = Container.expand(function () {
+	var self = Container.call(this);
+	var zombieGraphics = self.attachAsset('zombie', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.health = 50;
+	self.speed = 2;
+	self.damage = 20;
+	self.lastAttackTime = 0;
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xFFFFFF, 200);
+		if (self.health <= 0) {
+			return true; // Zombie is dead
+		}
+		return false;
+	};
+	self.update = function () {
+		// Move towards player
+		if (player.x > self.x) {
+			self.x += self.speed;
+		} else {
+			self.x -= self.speed;
+		}
+		// Check collision with player
+		if (self.intersects(player)) {
+			var currentTime = LK.ticks;
+			if (currentTime - self.lastAttackTime > 60) {
+				// Attack every second
+				player.takeDamage(self.damage);
+				self.lastAttackTime = currentTime;
+			}
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var zombies = [];
+var bullets = [];
+var healthPacks = [];
+var weaponPickups = [];
+var gameOver = false;
+var score = 0;
+var waveNumber = 1;
+var zombieSpawnTimer = 0;
+var pickupSpawnTimer = 0;
+var groundY = 2732 - 150;
+// Movement controls
+var moveLeft = false;
+var moveRight = false;
+var shooting = false;
+var shootTimer = 0;
+// Create ground
+var ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0,
+	x: 0,
+	y: groundY + 50
+}));
+// Create player
+player = game.addChild(new Player());
+player.x = 300;
+player.y = groundY;
+// UI Elements
+var scoreText = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0, 0);
+scoreText.x = 150;
+scoreText.y = 50;
+LK.gui.topLeft.addChild(scoreText);
+var healthText = new Text2('Health: 100', {
+	size: 60,
+	fill: 0xFF0000
+});
+healthText.anchor.set(0, 0);
+healthText.x = 150;
+healthText.y = 120;
+LK.gui.topLeft.addChild(healthText);
+var waveText = new Text2('Wave: 1', {
+	size: 60,
+	fill: 0xFFFF00
+});
+waveText.anchor.set(1, 0);
+LK.gui.topRight.addChild(waveText);
+// Control buttons for mobile
+var leftButton = LK.getAsset('player', {
+	width: 100,
+	height: 100,
+	anchorX: 0.5,
+	anchorY: 0.5,
+	alpha: 0.3
+});
+leftButton.x = 100;
+leftButton.y = 2600;
+LK.gui.addChild(leftButton);
+var rightButton = LK.getAsset('player', {
+	width: 100,
+	height: 100,
+	anchorX: 0.5,
+	anchorY: 0.5,
+	alpha: 0.3
+});
+rightButton.x = 250;
+rightButton.y = 2600;
+LK.gui.addChild(rightButton);
+var jumpButton = LK.getAsset('player', {
+	width: 100,
+	height: 100,
+	anchorX: 0.5,
+	anchorY: 0.5,
+	alpha: 0.3
+});
+jumpButton.x = 1900;
+jumpButton.y = 2500;
+LK.gui.addChild(jumpButton);
+var shootButton = LK.getAsset('bullet', {
+	width: 100,
+	height: 100,
+	anchorX: 0.5,
+	anchorY: 0.5,
+	alpha: 0.3
+});
+shootButton.x = 1900;
+shootButton.y = 2600;
+LK.gui.addChild(shootButton);
+// Button event handlers
+leftButton.down = function () {
+	moveLeft = true;
+};
+leftButton.up = function () {
+	moveLeft = false;
+};
+rightButton.down = function () {
+	moveRight = true;
+};
+rightButton.up = function () {
+	moveRight = false;
+};
+jumpButton.down = function () {
+	if (player.onGround) {
+		player.velocityY = -player.jumpPower;
+		player.onGround = false;
+	}
+};
+shootButton.down = function () {
+	shooting = true;
+};
+shootButton.up = function () {
+	shooting = false;
+};
+// Game event handlers
+game.down = function (x, y, obj) {
+	// Handle shooting anywhere on screen
+	if (x > 1024) {
+		// Right side of screen
+		shooting = true;
+	}
+};
+game.up = function (x, y, obj) {
+	shooting = false;
+};
+// Spawn functions
+function spawnZombie() {
+	var zombie = new Zombie();
+	zombie.x = Math.random() < 0.5 ? -50 : 2098; // Spawn from left or right edge
+	zombie.y = groundY;
+	// Scale difficulty based on wave
+	zombie.health += (waveNumber - 1) * 10;
+	zombie.speed += (waveNumber - 1) * 0.5;
+	zombie.damage += (waveNumber - 1) * 5;
+	zombies.push(zombie);
+	game.addChild(zombie);
+}
+function spawnHealthPack() {
+	var healthPack = new HealthPack();
+	healthPack.x = Math.random() * 1800 + 124;
+	healthPack.y = groundY - 50;
+	healthPacks.push(healthPack);
+	game.addChild(healthPack);
+}
+function spawnWeaponPickup() {
+	var weaponPickup = new WeaponPickup();
+	weaponPickup.x = Math.random() * 1800 + 124;
+	weaponPickup.y = groundY - 50;
+	weaponPickups.push(weaponPickup);
+	game.addChild(weaponPickup);
+}
+function shootBullet() {
+	var bullet = new Bullet();
+	bullet.x = player.x;
+	bullet.y = player.y - 40;
+	bullet.damage = 25 * player.weapon; // More damage with better weapons
+	// Find nearest zombie to aim at
+	var nearestZombie = null;
+	var nearestDistance = Infinity;
+	for (var i = 0; i < zombies.length; i++) {
+		var distance = Math.abs(zombies[i].x - player.x);
+		if (distance < nearestDistance) {
+			nearestDistance = distance;
+			nearestZombie = zombies[i];
+		}
+	}
+	if (nearestZombie) {
+		bullet.direction = nearestZombie.x > player.x ? 1 : -1;
+	} else {
+		bullet.direction = 1; // Default right
+	}
+	bullets.push(bullet);
+	game.addChild(bullet);
+	LK.getSound('shoot').play();
+}
+// Main game update
+game.update = function () {
+	if (gameOver) {
+		LK.showGameOver();
+		return;
+	}
+	// Update score based on survival time
+	score += 1;
+	LK.setScore(score);
+	// Handle player movement
+	if (moveLeft && player.x > 50) {
+		player.x -= player.speed;
+	}
+	if (moveRight && player.x < 1998) {
+		player.x += player.speed;
+	}
+	// Handle shooting
+	if (shooting && LK.ticks - shootTimer > 60 / player.weapon) {
+		// Faster shooting with better weapons
+		shootBullet();
+		shootTimer = LK.ticks;
+	}
+	// Spawn zombies
+	zombieSpawnTimer++;
+	var spawnRate = Math.max(60 - waveNumber * 5, 20); // Faster spawning each wave
+	if (zombieSpawnTimer >= spawnRate) {
+		spawnZombie();
+		zombieSpawnTimer = 0;
+	}
+	// Spawn pickups occasionally
+	pickupSpawnTimer++;
+	if (pickupSpawnTimer >= 600) {
+		// Every 10 seconds
+		if (Math.random() < 0.7) {
+			spawnHealthPack();
+		} else {
+			spawnWeaponPickup();
+		}
+		pickupSpawnTimer = 0;
+	}
+	// Update bullets and check collisions
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var bullet = bullets[i];
+		// Check if bullet is off screen
+		if (bullet.x < -50 || bullet.x > 2098) {
+			bullet.destroy();
+			bullets.splice(i, 1);
+			continue;
+		}
+		// Check bullet-zombie collisions
+		var hit = false;
+		for (var j = zombies.length - 1; j >= 0; j--) {
+			var zombie = zombies[j];
+			if (bullet.intersects(zombie)) {
+				if (zombie.takeDamage(bullet.damage)) {
+					// Zombie died
+					score += 50;
+					LK.getSound('zombieHit').play();
+					zombie.destroy();
+					zombies.splice(j, 1);
+				}
+				bullet.destroy();
+				bullets.splice(i, 1);
+				hit = true;
+				break;
+			}
+		}
+	}
+	// Update health packs
+	for (var i = healthPacks.length - 1; i >= 0; i--) {
+		var healthPack = healthPacks[i];
+		if (healthPack.collected) {
+			healthPack.destroy();
+			healthPacks.splice(i, 1);
+		}
+	}
+	// Update weapon pickups
+	for (var i = weaponPickups.length - 1; i >= 0; i--) {
+		var weaponPickup = weaponPickups[i];
+		if (weaponPickup.collected) {
+			weaponPickup.destroy();
+			weaponPickups.splice(i, 1);
+		}
+	}
+	// Update wave progression
+	if (LK.ticks % 1800 === 0) {
+		// Every 30 seconds
+		waveNumber++;
+	}
+	// Update UI
+	scoreText.setText('Score: ' + score);
+	healthText.setText('Health: ' + player.health);
+	waveText.setText('Wave: ' + waveNumber);
+	// Check win condition (survive for a very long time)
+	if (score >= 10000) {
+		LK.showYouWin();
+	}
+};
\ No newline at end of file