===================================================================
--- 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.velocity = 0;
+	self.gravity = 0.8;
+	self.flapPower = -12;
+	self.flap = function () {
+		self.velocity = self.flapPower;
+		LK.getSound('flap').play();
+		// Add flap animation
+		tween(birdGraphics, {
+			rotation: -0.3
+		}, {
+			duration: 100
+		});
+		tween(birdGraphics, {
+			rotation: 0.3
+		}, {
+			duration: 200,
+			onFinish: function onFinish() {
+				tween(birdGraphics, {
+					rotation: 0
+				}, {
+					duration: 100
+				});
+			}
+		});
+	};
+	self.update = function () {
+		self.velocity += self.gravity;
+		self.y += self.velocity;
+		// Rotate bird based on velocity
+		if (self.velocity > 0) {
+			birdGraphics.rotation = Math.min(self.velocity * 0.05, 0.5);
+		} else {
+			birdGraphics.rotation = Math.max(self.velocity * 0.05, -0.5);
+		}
+	};
+	return self;
+});
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	self.speed = -4;
+	self.gapHeight = 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.setGapPosition = function (gapY) {
+		self.topPipe.y = gapY - self.gapHeight / 2;
+		self.bottomPipe.y = gapY + self.gapHeight / 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
+****/ 
+// Game variables
+var bird;
+var pipes = [];
+var ground;
+var gameStarted = false;
+var gameActive = false;
+var pipeTimer = 0;
+var pipeInterval = 90; // frames between pipes
+// Create ground
+ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 1,
+	x: 0,
+	y: 2732
+}));
+// Create bird
+bird = game.addChild(new Bird());
+bird.x = 400;
+bird.y = 1366; // Center of screen vertically
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 100,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+scoreTxt.y = 150;
+// Create start instruction
+var startTxt = new Text2('TAP TO START', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+startTxt.anchor.set(0.5, 0.5);
+LK.gui.center.addChild(startTxt);
+function createPipe() {
+	var pipe = new Pipe();
+	pipe.x = 2048 + 60; // Start off right edge
+	// Random gap position (avoid too high or too low)
+	var minGapY = 200;
+	var maxGapY = 2532; // Account for ground height
+	var gapY = minGapY + Math.random() * (maxGapY - minGapY);
+	pipe.setGapPosition(gapY);
+	pipes.push(pipe);
+	game.addChild(pipe);
+}
+function checkCollisions() {
+	// Check ground collision
+	if (bird.y + 30 >= 2632) {
+		// Ground level minus bird radius
+		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];
+		// Check if bird is in horizontal range of pipe
+		if (bird.x + 30 > pipe.x - 60 && bird.x - 30 < pipe.x + 60) {
+			// Check top pipe collision
+			if (bird.y - 30 < pipe.topPipe.y) {
+				return true;
+			}
+			// Check bottom pipe collision
+			if (bird.y + 30 > pipe.bottomPipe.y) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+function updateScore() {
+	for (var i = 0; i < pipes.length; i++) {
+		var pipe = pipes[i];
+		// Check if bird passed this pipe
+		if (!pipe.scored && bird.x > pipe.x + 60) {
+			pipe.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+			LK.getSound('score').play();
+		}
+	}
+}
+// Game input handling
+game.down = function (x, y, obj) {
+	if (!gameStarted) {
+		gameStarted = true;
+		gameActive = true;
+		startTxt.visible = false;
+	}
+	if (gameActive) {
+		bird.flap();
+	}
+};
+// Main game loop
+game.update = function () {
+	if (!gameActive) {
+		return;
+	}
+	// Update bird
+	bird.update();
+	// Check collisions
+	if (checkCollisions()) {
+		gameActive = false;
+		LK.showGameOver();
+		return;
+	}
+	// Update score
+	updateScore();
+	// Create new pipes
+	pipeTimer++;
+	if (pipeTimer >= pipeInterval) {
+		createPipe();
+		pipeTimer = 0;
+	}
+	// Update and clean up pipes
+	for (var i = pipes.length - 1; i >= 0; i--) {
+		var pipe = pipes[i];
+		pipe.update();
+		// Remove pipes that are off screen
+		if (pipe.x < -120) {
+			pipe.destroy();
+			pipes.splice(i, 1);
+		}
+	}
+};
\ No newline at end of file