===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,165 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Character = Container.expand(function () {
+	var self = Container.call(this);
+	var characterGraphics = self.attachAsset('character', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocityY = 0;
+	self.gravity = 0.8;
+	self.jumpForce = -15;
+	self.jump = function () {
+		self.velocityY = self.jumpForce;
+		LK.getSound('jump').play();
+	};
+	self.update = function () {
+		self.velocityY += self.gravity;
+		self.y += self.velocityY;
+	};
+	return self;
+});
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	// Top pipe
+	self.topPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	// Bottom pipe
+	self.bottomPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	self.speed = -4;
+	self.gapSize = 300;
+	self.scored = false;
+	self.setGapPosition = function (centerY) {
+		self.topPipe.y = centerY - self.gapSize / 2;
+		self.bottomPipe.y = centerY + self.gapSize / 2;
+	};
+	self.update = function () {
+		self.x += self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+var character;
+var pipes = [];
+var gameStarted = false;
+var spawnTimer = 0;
+var spawnInterval = 120; // 2 seconds at 60fps
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 100,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create start instruction
+var startTxt = new Text2('TAP TO START', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+startTxt.anchor.set(0.5, 0.5);
+startTxt.x = 2048 / 2;
+startTxt.y = 2732 / 2 + 200;
+game.addChild(startTxt);
+// Initialize character
+character = game.addChild(new Character());
+character.x = 2048 / 4;
+character.y = 2732 / 2;
+function startGame() {
+	if (!gameStarted) {
+		gameStarted = true;
+		character.jump();
+		game.removeChild(startTxt);
+	}
+}
+function spawnPipe() {
+	var pipe = new Pipe();
+	pipe.x = 2048 + 100;
+	// Random gap position (avoid too high or too low)
+	var minY = 300;
+	var maxY = 2732 - 300;
+	var gapCenterY = minY + Math.random() * (maxY - minY);
+	pipe.setGapPosition(gapCenterY);
+	pipes.push(pipe);
+	game.addChild(pipe);
+}
+function checkCollisions() {
+	// Check if character is off screen
+	if (character.y < -100 || character.y > 2732 + 100) {
+		LK.showGameOver();
+		return;
+	}
+	// Check pipe collisions
+	for (var i = 0; i < pipes.length; i++) {
+		var pipe = pipes[i];
+		// Check if character passed through pipe for scoring
+		if (!pipe.scored && character.x > pipe.x + 60) {
+			pipe.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+			LK.getSound('score').play();
+		}
+		// Check collision with pipes
+		if (character.intersects(pipe.topPipe) || character.intersects(pipe.bottomPipe)) {
+			LK.showGameOver();
+			return;
+		}
+	}
+}
+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 input handling
+game.down = function (x, y, obj) {
+	if (!gameStarted) {
+		startGame();
+	} else {
+		character.jump();
+	}
+};
+// Main game loop
+game.update = function () {
+	if (!gameStarted) return;
+	// Update character
+	character.update();
+	// Update pipes
+	for (var i = 0; i < pipes.length; i++) {
+		pipes[i].update();
+	}
+	// Spawn new pipes
+	spawnTimer++;
+	if (spawnTimer >= spawnInterval) {
+		spawnPipe();
+		spawnTimer = 0;
+	}
+	// Check collisions
+	checkCollisions();
+	// Clean up off-screen pipes
+	cleanupPipes();
+};
\ No newline at end of file