===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,225 @@
-/****
+/**** 
+* 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 = -15;
+	self.maxFallSpeed = 12;
+	self.flap = function () {
+		self.velocityY = self.flapPower;
+		LK.getSound('flap').play();
+		// Rotate bird upward when flapping
+		tween(birdGraphics, {
+			rotation: -0.3
+		}, {
+			duration: 150
+		});
+	};
+	self.update = function () {
+		// Apply gravity
+		self.velocityY += self.gravity;
+		if (self.velocityY > self.maxFallSpeed) {
+			self.velocityY = self.maxFallSpeed;
+		}
+		// Move bird
+		self.y += self.velocityY;
+		// Rotate bird based on velocity
+		if (self.velocityY > 0) {
+			var targetRotation = Math.min(self.velocityY * 0.08, 1.5);
+			tween(birdGraphics, {
+				rotation: targetRotation
+			}, {
+				duration: 200
+			});
+		}
+	};
+	return self;
+});
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	self.topPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.bottomPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	self.gapSize = 300;
+	self.speed = -4;
+	self.scored = false;
+	self.setup = function (gapY) {
+		self.topPipe.y = gapY - self.gapSize / 2;
+		self.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 gameOver = false;
+var pipeSpawnTimer = 0;
+var pipeSpawnInterval = 90; // frames between pipe spawns
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 100,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create tap to start instruction
+var instructionTxt = new Text2('TAP TO START', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+instructionTxt.anchor.set(0.5, 0.5);
+instructionTxt.x = 2048 / 2;
+instructionTxt.y = 2732 / 2 - 200;
+game.addChild(instructionTxt);
+// Initialize bird
+bird = game.addChild(new Bird());
+bird.x = 2048 / 4;
+bird.y = 2732 / 2;
+// Create ground
+ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 1
+}));
+ground.x = 0;
+ground.y = 2732;
+function startGame() {
+	gameStarted = true;
+	if (instructionTxt.parent) {
+		instructionTxt.parent.removeChild(instructionTxt);
+	}
+	bird.flap();
+}
+function spawnPipe() {
+	var pipe = new Pipe();
+	var minY = 400;
+	var maxY = 2732 - 400;
+	var gapY = minY + Math.random() * (maxY - minY);
+	pipe.setup(gapY);
+	pipe.x = 2048 + 100;
+	pipes.push(pipe);
+	game.addChild(pipe);
+}
+function checkCollisions() {
+	// Check ground collision
+	if (bird.y + 30 >= ground.y) {
+		return true;
+	}
+	// Check ceiling collision
+	if (bird.y - 30 <= 0) {
+		return true;
+	}
+	// Check pipe collisions
+	for (var i = 0; i < pipes.length; i++) {
+		var pipe = pipes[i];
+		var birdLeft = bird.x - 40;
+		var birdRight = bird.x + 40;
+		var birdTop = bird.y - 30;
+		var birdBottom = bird.y + 30;
+		var pipeLeft = pipe.x - 60;
+		var pipeRight = pipe.x + 60;
+		// Check if bird is in pipe's x range
+		if (birdRight > pipeLeft && birdLeft < pipeRight) {
+			// Check collision with top pipe
+			if (birdTop < pipe.topPipe.y) {
+				return true;
+			}
+			// Check collision with bottom pipe
+			if (birdBottom > pipe.bottomPipe.y) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+function updateScore() {
+	for (var i = 0; i < pipes.length; i++) {
+		var pipe = pipes[i];
+		if (!pipe.scored && bird.x > pipe.x + 60) {
+			pipe.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+			LK.getSound('score').play();
+			// Increase difficulty slightly
+			if (LK.getScore() % 5 === 0 && pipeSpawnInterval > 60) {
+				pipeSpawnInterval -= 2;
+			}
+			break;
+		}
+	}
+}
+function cleanupPipes() {
+	for (var i = pipes.length - 1; i >= 0; i--) {
+		var pipe = pipes[i];
+		if (pipe.x < -200) {
+			pipe.destroy();
+			pipes.splice(i, 1);
+		}
+	}
+}
+game.down = function (x, y, obj) {
+	if (gameOver) {
+		return;
+	}
+	if (!gameStarted) {
+		startGame();
+	} else {
+		bird.flap();
+	}
+};
+game.update = function () {
+	if (gameOver) {
+		return;
+	}
+	if (gameStarted) {
+		// Check for collisions
+		if (checkCollisions()) {
+			gameOver = true;
+			LK.showGameOver();
+			return;
+		}
+		// Spawn pipes
+		pipeSpawnTimer++;
+		if (pipeSpawnTimer >= pipeSpawnInterval) {
+			spawnPipe();
+			pipeSpawnTimer = 0;
+		}
+		// Update score
+		updateScore();
+		// Cleanup off-screen pipes
+		cleanupPipes();
+	} else {
+		// Gentle floating animation when waiting to start
+		bird.y += Math.sin(LK.ticks * 0.1) * 0.5;
+	}
+};
\ No newline at end of file