===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,213 @@
-/****
+/**** 
+* 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();
+		// Add a small rotation animation
+		tween(birdGraphics, {
+			rotation: -0.3
+		}, {
+			duration: 200
+		});
+		tween(birdGraphics, {
+			rotation: 0.3
+		}, {
+			duration: 300,
+			onFinish: function onFinish() {
+				tween(birdGraphics, {
+					rotation: 0
+				}, {
+					duration: 200
+				});
+			}
+		});
+	};
+	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(0.5, self.velocityY * 0.05);
+		}
+	};
+	return self;
+});
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	self.speed = -4;
+	self.gapSize = 300;
+	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.setupPipes = function (gapCenterY) {
+		self.topPipe.y = gapCenterY - self.gapSize / 2;
+		self.bottomPipe.y = gapCenterY + self.gapSize / 2;
+	};
+	self.update = function () {
+		self.x += self.speed;
+	};
+	self.checkBirdCollision = function (bird) {
+		var birdBounds = {
+			left: bird.x - 30,
+			right: bird.x + 30,
+			top: bird.y - 30,
+			bottom: bird.y + 30
+		};
+		var pipeBounds = {
+			left: self.x - 60,
+			right: self.x + 60
+		};
+		// Check if bird is within pipe x bounds
+		if (birdBounds.right > pipeBounds.left && birdBounds.left < pipeBounds.right) {
+			// Check collision with top pipe
+			if (birdBounds.top < self.topPipe.y) {
+				return true;
+			}
+			// Check collision with bottom pipe
+			if (birdBounds.bottom > self.bottomPipe.y) {
+				return true;
+			}
+		}
+		return false;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+var bird;
+var pipes = [];
+var ground;
+var scoreTxt;
+var gameStarted = false;
+var gameOver = false;
+var pipeSpawnTimer = 0;
+var pipeSpawnInterval = 120; // 2 seconds at 60fps
+// Initialize bird
+bird = game.addChild(new Bird());
+bird.x = 400;
+bird.y = 1366; // Center of screen vertically
+// Initialize ground
+ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0
+}));
+ground.x = 0;
+ground.y = 2732 - 100; // Bottom of screen
+// Initialize score display
+scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+scoreTxt.y = 100;
+// Game input handling
+game.down = function (x, y, obj) {
+	if (!gameOver) {
+		if (!gameStarted) {
+			gameStarted = true;
+		}
+		bird.flap();
+	}
+};
+// Spawn pipe function
+function spawnPipe() {
+	var pipe = game.addChild(new Pipe());
+	pipe.x = 2048 + 60; // Start off-screen right
+	// Random gap position (avoid too high or too low)
+	var minY = 200 + pipe.gapSize / 2;
+	var maxY = ground.y - 200 - pipe.gapSize / 2;
+	var gapCenterY = minY + Math.random() * (maxY - minY);
+	pipe.setupPipes(gapCenterY);
+	pipes.push(pipe);
+}
+// Main game update loop
+game.update = function () {
+	if (!gameStarted || gameOver) {
+		return;
+	}
+	// Update bird
+	bird.update();
+	// Check ground collision
+	if (bird.y + 30 >= ground.y || bird.y - 30 <= 0) {
+		gameOver = true;
+		LK.effects.flashScreen(0xff0000, 1000);
+		LK.setTimeout(function () {
+			LK.showGameOver();
+		}, 500);
+		return;
+	}
+	// Spawn pipes
+	pipeSpawnTimer++;
+	if (pipeSpawnTimer >= pipeSpawnInterval) {
+		spawnPipe();
+		pipeSpawnTimer = 0;
+	}
+	// Update pipes and check collisions
+	for (var i = pipes.length - 1; i >= 0; i--) {
+		var pipe = pipes[i];
+		pipe.update();
+		// Check collision
+		if (pipe.checkBirdCollision(bird)) {
+			gameOver = true;
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.setTimeout(function () {
+				LK.showGameOver();
+			}, 500);
+			return;
+		}
+		// Check scoring
+		if (!pipe.scored && bird.x > pipe.x) {
+			pipe.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+			LK.getSound('score').play();
+		}
+		// Remove off-screen pipes
+		if (pipe.x < -120) {
+			pipe.destroy();
+			pipes.splice(i, 1);
+		}
+	}
+};
\ No newline at end of file