===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,171 @@
-/****
+/**** 
+* 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.velocityY = 0;
+	self.gravity = 0.8;
+	self.flapPower = -12;
+	self.maxFallSpeed = 15;
+	self.flap = function () {
+		self.velocityY = self.flapPower;
+		LK.getSound('flap').play();
+		// Bird animation - slight rotation and scale
+		tween(birdGraphics, {
+			rotation: -0.3,
+			scaleY: 1.1
+		}, {
+			duration: 150
+		});
+		tween(birdGraphics, {
+			rotation: 0.3,
+			scaleY: 1
+		}, {
+			duration: 300
+		});
+	};
+	self.update = function () {
+		// Apply gravity
+		self.velocityY += self.gravity;
+		// Limit fall speed
+		if (self.velocityY > self.maxFallSpeed) {
+			self.velocityY = self.maxFallSpeed;
+		}
+		// Update position
+		self.y += self.velocityY;
+		// Rotate bird based on velocity
+		if (self.velocityY < 0) {
+			birdGraphics.rotation = Math.max(-0.5, self.velocityY * 0.05);
+		} else {
+			birdGraphics.rotation = Math.min(0.8, self.velocityY * 0.05);
+		}
+	};
+	return self;
+});
+var Pipe = Container.expand(function (gapY) {
+	var self = Container.call(this);
+	self.gapSize = 300;
+	self.speed = 4;
+	self.scored = false;
+	// Top pipe
+	var topPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	topPipe.y = gapY - self.gapSize / 2;
+	// Bottom pipe
+	var bottomPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	bottomPipe.y = gapY + self.gapSize / 2;
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+var bird;
+var pipes = [];
+var ground;
+var gameStarted = false;
+var gameSpeed = 4;
+var pipeSpawnTimer = 0;
+var pipeSpawnInterval = 90; // frames between pipe spawns
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create ground
+ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0
+}));
+ground.x = 0;
+ground.y = 2732 - 100;
+// Create bird
+bird = game.addChild(new Bird());
+bird.x = 400;
+bird.y = 1366;
+// Create first pipe
+function createPipe() {
+	var gapY = Math.random() * (2200 - 400) + 400; // Random gap position
+	var pipe = new Pipe(gapY);
+	pipe.x = 2048 + 60;
+	pipes.push(pipe);
+	game.addChild(pipe);
+}
+// Initial pipe
+createPipe();
+game.down = function (x, y, obj) {
+	if (!gameStarted) {
+		gameStarted = true;
+	}
+	bird.flap();
+};
+game.update = function () {
+	if (!gameStarted) return;
+	// Spawn new pipes
+	pipeSpawnTimer++;
+	if (pipeSpawnTimer >= pipeSpawnInterval) {
+		createPipe();
+		pipeSpawnTimer = 0;
+	}
+	// Update and check pipes
+	for (var i = pipes.length - 1; i >= 0; i--) {
+		var pipe = pipes[i];
+		// Check if pipe has moved off screen
+		if (pipe.x < -120) {
+			pipe.destroy();
+			pipes.splice(i, 1);
+			continue;
+		}
+		// Check collision with bird
+		if (bird.intersects(pipe)) {
+			LK.getSound('hit').play();
+			LK.showGameOver();
+			return;
+		}
+		// Check scoring
+		if (!pipe.scored && pipe.x + 60 < bird.x) {
+			pipe.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+			LK.getSound('score').play();
+		}
+	}
+	// Check ground collision
+	if (bird.y + 22 > ground.y) {
+		LK.getSound('hit').play();
+		LK.showGameOver();
+		return;
+	}
+	// Check ceiling collision
+	if (bird.y - 22 < 0) {
+		LK.getSound('hit').play();
+		LK.showGameOver();
+		return;
+	}
+};
\ No newline at end of file