===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,181 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Bird = Container.expand(function () {
+	var self = Container.call(this);
+	var birdGraphics = self.attachAsset('bird', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocity = 0;
+	self.gravity = 0.8;
+	self.flapPower = -12;
+	self.flap = function () {
+		self.velocity = self.flapPower;
+		LK.getSound('flap').play();
+		// Add a little bounce animation
+		tween(birdGraphics, {
+			rotation: -0.3
+		}, {
+			duration: 100
+		});
+		tween(birdGraphics, {
+			rotation: 0
+		}, {
+			duration: 200
+		});
+	};
+	self.update = function () {
+		self.velocity += self.gravity;
+		self.y += self.velocity;
+		// Rotate bird based on velocity
+		birdGraphics.rotation = Math.max(-0.5, Math.min(0.5, self.velocity * 0.05));
+		// Check ground collision
+		if (self.y > 2732 - 150) {
+			LK.showGameOver();
+		}
+		// Check ceiling collision
+		if (self.y < 0) {
+			self.y = 0;
+			self.velocity = 0;
+		}
+	};
+	return self;
+});
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	self.speed = -4;
+	self.scored = false;
+	// Create top pipe
+	self.topPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	// Create bottom pipe
+	self.bottomPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	self.setGapPosition = function (gapY, gapSize) {
+		self.topPipe.y = gapY - gapSize / 2;
+		self.bottomPipe.y = gapY + gapSize / 2;
+	};
+	self.update = function () {
+		self.x += self.speed;
+		// Remove pipe when off screen
+		if (self.x < -100) {
+			self.shouldRemove = true;
+		}
+		// Check scoring
+		if (!self.scored && self.x < bird.x) {
+			self.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreText.setText(LK.getScore());
+			LK.getSound('score').play();
+		}
+	};
+	self.checkCollision = function (bird) {
+		var birdBounds = {
+			x: bird.x - 30,
+			y: bird.y - 30,
+			width: 60,
+			height: 60
+		};
+		var topPipeBounds = {
+			x: self.x - 60,
+			y: self.topPipe.y - 800,
+			width: 120,
+			height: 800
+		};
+		var bottomPipeBounds = {
+			x: self.x - 60,
+			y: self.bottomPipe.y,
+			width: 120,
+			height: 800
+		};
+		return birdBounds.x < topPipeBounds.x + topPipeBounds.width && birdBounds.x + birdBounds.width > topPipeBounds.x && birdBounds.y < topPipeBounds.y + topPipeBounds.height && birdBounds.y + birdBounds.height > topPipeBounds.y || birdBounds.x < bottomPipeBounds.x + bottomPipeBounds.width && birdBounds.x + birdBounds.width > bottomPipeBounds.x && birdBounds.y < bottomPipeBounds.y + bottomPipeBounds.height && birdBounds.y + birdBounds.height > bottomPipeBounds.y;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var bird;
+var pipes = [];
+var ground;
+var scoreText;
+var pipeSpawnTimer = 0;
+var pipeSpawnInterval = 90; // Spawn pipe every 1.5 seconds at 60fps
+var gapSize = 300;
+// Create ground
+ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0,
+	x: 0,
+	y: 2732 - 100
+}));
+// Create bird
+bird = game.addChild(new Bird());
+bird.x = 300;
+bird.y = 1366; // Middle of screen
+// Create score display
+scoreText = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreText);
+scoreText.y = 100;
+// Input handling
+game.down = function (x, y, obj) {
+	bird.flap();
+};
+// Spawn pipes
+function spawnPipe() {
+	var pipe = game.addChild(new Pipe());
+	pipe.x = 2148; // Start off screen to the right
+	// Random gap position
+	var minGapY = gapSize / 2 + 100;
+	var maxGapY = 2732 - 100 - gapSize / 2;
+	var gapY = minGapY + Math.random() * (maxGapY - minGapY);
+	pipe.setGapPosition(gapY, gapSize);
+	pipes.push(pipe);
+}
+// Main game loop
+game.update = function () {
+	// Spawn pipes
+	pipeSpawnTimer++;
+	if (pipeSpawnTimer >= pipeSpawnInterval) {
+		spawnPipe();
+		pipeSpawnTimer = 0;
+	}
+	// Update pipes
+	for (var i = pipes.length - 1; i >= 0; i--) {
+		var pipe = pipes[i];
+		// Check collision
+		if (pipe.checkCollision(bird)) {
+			LK.effects.flashScreen(0xff0000, 500);
+			LK.showGameOver();
+			return;
+		}
+		// Remove pipes that are off screen
+		if (pipe.shouldRemove) {
+			pipe.destroy();
+			pipes.splice(i, 1);
+		}
+	}
+};
\ No newline at end of file