===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,203 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Asteroid = Container.expand(function () {
+	var self = Container.call(this);
+	var asteroidGraphics = self.attachAsset('asteroid', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3 + Math.random() * 4;
+	self.rotationSpeed = (Math.random() - 0.5) * 0.1;
+	self.update = function () {
+		self.y += self.speed;
+		asteroidGraphics.rotation += self.rotationSpeed;
+	};
+	return self;
+});
+var Debris = Container.expand(function () {
+	var self = Container.call(this);
+	var debrisGraphics = self.attachAsset('debris', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 2 + Math.random() * 3;
+	self.horizontalSpeed = (Math.random() - 0.5) * 2;
+	self.update = function () {
+		self.y += self.speed;
+		self.x += self.horizontalSpeed;
+	};
+	return self;
+});
+var Spaceship = Container.expand(function () {
+	var self = Container.call(this);
+	var shipGraphics = self.attachAsset('spaceship', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 0;
+	self.maxSpeed = 8;
+	self.acceleration = 0.3;
+	self.friction = 0.85;
+	self.update = function () {
+		// Apply friction
+		self.speed *= self.friction;
+		// Update position
+		self.x += self.speed;
+		// Keep ship within bounds
+		if (self.x < 40) {
+			self.x = 40;
+			self.speed = 0;
+		}
+		if (self.x > 2008) {
+			self.x = 2008;
+			self.speed = 0;
+		}
+	};
+	self.moveLeft = function () {
+		self.speed = Math.max(self.speed - self.acceleration, -self.maxSpeed);
+	};
+	self.moveRight = function () {
+		self.speed = Math.min(self.speed + self.acceleration, self.maxSpeed);
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+var spaceship = new Spaceship();
+var obstacles = [];
+var scrollSpeed = 2;
+var spawnTimer = 0;
+var spawnRate = 120; // frames between spawns
+var gameSpeed = 1;
+var altitude = 0;
+var lastTouchX = null;
+var isDragging = false;
+// Position spaceship
+spaceship.x = 1024;
+spaceship.y = 2400;
+game.addChild(spaceship);
+// Create score display
+var scoreText = new Text2('Altitude: 0m', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreText);
+// Create altitude display
+var altitudeText = new Text2('Score: 0', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+altitudeText.anchor.set(0.5, 0);
+altitudeText.y = 80;
+LK.gui.top.addChild(altitudeText);
+function createObstacle() {
+	var obstacle;
+	if (Math.random() < 0.7) {
+		obstacle = new Asteroid();
+	} else {
+		obstacle = new Debris();
+	}
+	obstacle.x = Math.random() * (2048 - 100) + 50;
+	obstacle.y = -50;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+function handleTouch(x, y) {
+	if (isDragging && lastTouchX !== null) {
+		var deltaX = x - lastTouchX;
+		if (deltaX < -20) {
+			spaceship.moveLeft();
+		} else if (deltaX > 20) {
+			spaceship.moveRight();
+		}
+	}
+	lastTouchX = x;
+}
+game.down = function (x, y, obj) {
+	isDragging = true;
+	lastTouchX = x;
+	handleTouch(x, y);
+};
+game.move = function (x, y, obj) {
+	if (isDragging) {
+		handleTouch(x, y);
+	}
+};
+game.up = function (x, y, obj) {
+	isDragging = false;
+	lastTouchX = null;
+};
+game.update = function () {
+	// Update altitude and score
+	altitude += scrollSpeed;
+	LK.setScore(Math.floor(altitude / 10));
+	// Update displays
+	scoreText.setText('Altitude: ' + Math.floor(altitude) + 'm');
+	altitudeText.setText('Score: ' + LK.getScore());
+	// Increase difficulty over time
+	if (LK.ticks % 600 === 0) {
+		// Every 10 seconds
+		gameSpeed += 0.1;
+		scrollSpeed = Math.min(scrollSpeed + 0.2, 6);
+		spawnRate = Math.max(spawnRate - 5, 30);
+	}
+	// Spawn obstacles
+	spawnTimer++;
+	if (spawnTimer >= spawnRate) {
+		createObstacle();
+		spawnTimer = 0;
+	}
+	// Update obstacles and check collisions
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		// Track last position for cleanup
+		if (obstacle.lastY === undefined) obstacle.lastY = obstacle.y;
+		// Remove obstacles that are off screen
+		if (obstacle.lastY < 2800 && obstacle.y >= 2800) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		// Check collision with spaceship
+		if (obstacle.intersects(spaceship)) {
+			// Flash screen red and show game over
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.getSound('explosion').play();
+			LK.showGameOver();
+			return;
+		}
+		obstacle.lastY = obstacle.y;
+	}
+	// Create star field effect by occasionally spawning small debris
+	if (LK.ticks % 30 === 0) {
+		var star = new Debris();
+		star.x = Math.random() * 2048;
+		star.y = -10;
+		star.speed = 1 + Math.random() * 2;
+		star.horizontalSpeed = 0;
+		// Make it smaller and whiter
+		star.scaleX = 0.3;
+		star.scaleY = 0.3;
+		star.alpha = 0.6;
+		obstacles.push(star);
+		game.addChild(star);
+	}
+};
+// Start background music
+LK.playMusic('space_music');
\ No newline at end of file