===================================================================
--- original.js
+++ change.js
@@ -1,71 +1,104 @@
 /**** 
-* Plugins
-****/ 
-var tween = LK.import("@upit/tween.v1");
-
-/**** 
 * Classes
 ****/ 
 var Bird = Container.expand(function () {
 	var self = Container.call(this);
+	// Create bird graphics
 	var birdGraphics = self.attachAsset('bird', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
+	// Physics properties
 	self.velocity = 0;
 	self.gravity = 0.8;
 	self.flapPower = -12;
 	self.maxVelocity = 15;
-	self.flap = function () {
-		self.velocity = self.flapPower;
-		LK.getSound('flap').play();
-		// Add flap animation
-		tween.stop(birdGraphics, {
-			rotation: true
-		});
-		birdGraphics.rotation = -0.3;
-		tween(birdGraphics, {
-			rotation: 0.3
-		}, {
-			duration: 300,
-			easing: tween.easeOut
-		});
-	};
+	// Tracking properties
+	self.lastY = 0;
 	self.update = function () {
+		// Store last position
+		self.lastY = self.y;
+		// Apply gravity
 		self.velocity += self.gravity;
+		// Limit velocity
 		if (self.velocity > self.maxVelocity) {
 			self.velocity = self.maxVelocity;
 		}
+		// Update position
 		self.y += self.velocity;
 		// Rotate bird based on velocity
-		var targetRotation = Math.max(-0.5, Math.min(0.8, self.velocity * 0.08));
-		birdGraphics.rotation = targetRotation;
+		birdGraphics.rotation = Math.min(Math.max(self.velocity * 0.05, -0.5), 1.2);
 	};
+	self.flap = function () {
+		self.velocity = self.flapPower;
+		LK.getSound('flap').play();
+	};
 	return self;
 });
-var Pipe = Container.expand(function () {
+var Ground = Container.expand(function () {
 	var self = Container.call(this);
-	self.gapSize = 300;
+	// Create ground graphics
+	var groundGraphics = self.attachAsset('ground', {
+		anchorX: 0,
+		anchorY: 0
+	});
+	// Movement properties
 	self.speed = -4;
-	self.scored = false;
-	// Create top pipe
-	self.topPipe = self.attachAsset('pipe', {
+	self.update = function () {
+		// Move ground left
+		self.x += self.speed;
+		// Reset position when off screen
+		if (self.x <= -2048) {
+			self.x = 0;
+		}
+	};
+	return self;
+});
+// Game variables
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	// Create top and bottom pipe parts
+	var topPipe = self.attachAsset('pipe', {
 		anchorX: 0.5,
 		anchorY: 1
 	});
-	// Create bottom pipe
-	self.bottomPipe = self.attachAsset('pipe', {
+	var bottomPipe = self.attachAsset('pipe', {
 		anchorX: 0.5,
 		anchorY: 0
 	});
-	self.setGapPosition = function (gapY) {
-		self.topPipe.y = gapY - self.gapSize / 2;
-		self.bottomPipe.y = gapY + self.gapSize / 2;
+	// Movement properties
+	self.speed = -4;
+	self.gapSize = 300;
+	self.passed = false;
+	// Tracking properties
+	self.lastX = 0;
+	self.setGapPosition = function (centerY) {
+		topPipe.y = centerY - self.gapSize / 2;
+		bottomPipe.y = centerY + self.gapSize / 2;
 	};
 	self.update = function () {
+		// Store last position
+		self.lastX = self.x;
+		// Move pipe left
 		self.x += self.speed;
 	};
+	self.getTopBounds = function () {
+		return {
+			x: self.x - 60,
+			y: 0,
+			width: 120,
+			height: topPipe.y
+		};
+	};
+	self.getBottomBounds = function () {
+		return {
+			x: self.x - 60,
+			y: bottomPipe.y,
+			width: 120,
+			height: 2732 - bottomPipe.y
+		};
+	};
 	return self;
 });
 
 /**** 
@@ -77,117 +110,112 @@
 
 /**** 
 * Game Code
 ****/ 
+// Game variables
+// Initialize bird asset - yellow circle for the flappy bird
+// Initialize pipe assets - green rectangles for obstacles
+// Initialize ground asset - brown rectangle for the ground
+// Initialize sound for flap
 var bird;
 var pipes = [];
+var ground1, ground2;
 var gameStarted = false;
-var gameOver = false;
 var pipeTimer = 0;
-var pipeSpacing = 300;
-// UI Elements
+var pipeSpacing = 400;
+// Score display
 var scoreTxt = new Text2('0', {
 	size: 80,
 	fill: 0xFFFFFF
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
-var instructionTxt = new Text2('TAP TO START', {
-	size: 60,
-	fill: 0xFFFFFF
-});
-instructionTxt.anchor.set(0.5, 0.5);
-LK.gui.center.addChild(instructionTxt);
 // Initialize bird
 bird = game.addChild(new Bird());
-bird.x = 300;
-bird.y = 1366;
-function startGame() {
-	gameStarted = true;
-	gameOver = false;
-	instructionTxt.visible = false;
+bird.x = 400;
+bird.y = 1366; // Center of screen vertically
+// Initialize ground
+ground1 = game.addChild(new Ground());
+ground1.x = 0;
+ground1.y = 2632; // Bottom of screen
+ground2 = game.addChild(new Ground());
+ground2.x = 2048;
+ground2.y = 2632; // Bottom of screen
+// Tap to flap
+game.down = function (x, y, obj) {
+	if (!gameStarted) {
+		gameStarted = true;
+	}
 	bird.flap();
+};
+// Collision detection helper function
+function checkCollision(birdBounds, pipeBounds) {
+	return birdBounds.x < pipeBounds.x + pipeBounds.width && birdBounds.x + birdBounds.width > pipeBounds.x && birdBounds.y < pipeBounds.y + pipeBounds.height && birdBounds.y + birdBounds.height > pipeBounds.y;
 }
-function spawnPipe() {
-	var pipe = new Pipe();
-	pipe.x = 2200;
-	// Random gap position (avoiding top and bottom edges)
-	var minGapY = 400;
-	var maxGapY = 2332;
-	var gapY = minGapY + Math.random() * (maxGapY - minGapY);
-	pipe.setGapPosition(gapY);
-	pipes.push(pipe);
-	game.addChild(pipe);
-}
-function checkCollisions() {
-	// Check ground and ceiling collision
-	if (bird.y > 2732 - 30 || bird.y < 30) {
-		return true;
+// Main game update
+game.update = function () {
+	if (!gameStarted) return;
+	// Store bird's last Y position
+	if (bird.lastY === undefined) bird.lastY = bird.y;
+	// Spawn pipes
+	pipeTimer++;
+	if (pipeTimer >= pipeSpacing / 4) {
+		// Adjust timing based on speed
+		var newPipe = new Pipe();
+		newPipe.x = 2200; // Start off-screen right
+		// Random gap position (avoid top and bottom areas)
+		var gapCenter = 400 + Math.random() * 1800; // Between 400 and 2200
+		newPipe.setGapPosition(gapCenter);
+		pipes.push(newPipe);
+		game.addChild(newPipe);
+		pipeTimer = 0;
 	}
-	// Check pipe collisions
-	for (var i = 0; i < pipes.length; i++) {
+	// Update pipes and check collisions/scoring
+	for (var i = pipes.length - 1; i >= 0; i--) {
 		var pipe = pipes[i];
-		// Simple collision detection with pipes
-		if (bird.x + 30 > pipe.x - 60 && bird.x - 30 < pipe.x + 60) {
-			if (bird.y - 30 < pipe.topPipe.y || bird.y + 30 > 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) {
-			pipe.scored = true;
+		// Initialize tracking properties
+		if (pipe.lastX === undefined) pipe.lastX = pipe.x;
+		// Check if pipe passed bird for scoring
+		if (!pipe.passed && pipe.lastX > bird.x && pipe.x <= bird.x) {
+			pipe.passed = true;
 			LK.setScore(LK.getScore() + 1);
 			scoreTxt.setText(LK.getScore());
-			LK.getSound('score').play();
 		}
-	}
-}
-function cleanupPipes() {
-	for (var i = pipes.length - 1; i >= 0; i--) {
-		var pipe = pipes[i];
+		// Remove pipes that are off screen
 		if (pipe.x < -200) {
 			pipe.destroy();
 			pipes.splice(i, 1);
+			continue;
 		}
+		// Check collision with pipes
+		var birdBounds = {
+			x: bird.x - 30,
+			y: bird.y - 30,
+			width: 60,
+			height: 60
+		};
+		var topBounds = pipe.getTopBounds();
+		var bottomBounds = pipe.getBottomBounds();
+		if (checkCollision(birdBounds, topBounds) || checkCollision(birdBounds, bottomBounds)) {
+			LK.effects.flashScreen(0xff0000, 500);
+			LK.showGameOver();
+			return;
+		}
+		// Update last position
+		pipe.lastX = pipe.x;
 	}
-}
-game.down = function (x, y, obj) {
-	if (!gameStarted) {
-		startGame();
-	} else if (!gameOver) {
-		bird.flap();
+	// Check collision with ground
+	if (bird.y >= 2582) {
+		// Ground collision (ground at 2632, bird radius 30)
+		LK.effects.flashScreen(0xff0000, 500);
+		LK.showGameOver();
+		return;
 	}
-};
-game.update = function () {
-	if (!gameStarted || gameOver) {
+	// Check collision with ceiling
+	if (bird.y <= 30) {
+		LK.effects.flashScreen(0xff0000, 500);
+		LK.showGameOver();
 		return;
 	}
-	// Update pipes
-	for (var i = 0; i < pipes.length; i++) {
-		pipes[i].update();
-	}
-	// Spawn new pipes
-	pipeTimer++;
-	if (pipeTimer >= pipeSpacing / 4) {
-		spawnPipe();
-		pipeTimer = 0;
-	}
-	// Update bird
-	bird.update();
-	// Check collisions
-	if (checkCollisions()) {
-		if (!gameOver) {
-			gameOver = true;
-			LK.getSound('hit').play();
-			LK.showGameOver();
-		}
-	}
-	// Update score
-	updateScore();
-	// Cleanup old pipes
-	cleanupPipes();
+	// Update last position
+	bird.lastY = bird.y;
 };
\ No newline at end of file