===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,369 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1", {
+	highScore: 0
+});
+
+/**** 
+* Classes
+****/ 
+var Cloud = Container.expand(function () {
+	var self = Container.call(this);
+	// Properties
+	self.speed = 1;
+	// Create cloud graphics
+	var cloudGraphics = self.attachAsset('cloud', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0.8
+	});
+	// Update method
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+var Dino = Container.expand(function () {
+	var self = Container.call(this);
+	// Properties
+	self.isJumping = false;
+	self.isDucking = false;
+	self.jumpVelocity = 0;
+	self.gravity = 0.8;
+	self.groundY = 0; // Will be set when positioning
+	// Create dino graphics
+	var dinoGraphics = self.attachAsset('dino', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	// Jump method
+	self.jump = function () {
+		if (!self.isJumping) {
+			self.isJumping = true;
+			self.jumpVelocity = -18;
+			LK.getSound('jump').play();
+		}
+	};
+	// Duck method
+	self.duck = function () {
+		if (!self.isDucking && !self.isJumping) {
+			self.isDucking = true;
+			dinoGraphics.height = 50; // Half height when ducking
+		}
+	};
+	// Stop ducking
+	self.stopDucking = function () {
+		if (self.isDucking) {
+			self.isDucking = false;
+			dinoGraphics.height = 100; // Normal height
+		}
+	};
+	// Reset dino state
+	self.reset = function () {
+		self.isJumping = false;
+		self.isDucking = false;
+		self.jumpVelocity = 0;
+		self.y = self.groundY;
+		dinoGraphics.height = 100;
+	};
+	// Update method
+	self.update = function () {
+		if (self.isJumping) {
+			self.y += self.jumpVelocity;
+			self.jumpVelocity += self.gravity;
+			// Check if landed
+			if (self.y >= self.groundY) {
+				self.y = self.groundY;
+				self.isJumping = false;
+				self.jumpVelocity = 0;
+			}
+		}
+	};
+	// Hit box for collision detection
+	self.getHitBox = function () {
+		return {
+			x: self.x - dinoGraphics.width / 2,
+			y: self.y - dinoGraphics.height,
+			width: dinoGraphics.width,
+			height: dinoGraphics.height
+		};
+	};
+	return self;
+});
+var Obstacle = Container.expand(function (type) {
+	var self = Container.call(this);
+	// Properties
+	self.type = type || 'cactus'; // 'cactus' or 'pterodactyl'
+	self.speed = 8;
+	// Create obstacle graphics
+	var graphics;
+	if (self.type === 'cactus') {
+		graphics = self.attachAsset('cactus', {
+			anchorX: 0.5,
+			anchorY: 1.0
+		});
+	} else {
+		graphics = self.attachAsset('pterodactyl', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	}
+	// Update method
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	// Increase speed method
+	self.setSpeed = function (newSpeed) {
+		self.speed = newSpeed;
+	};
+	// Hit box for collision detection
+	self.getHitBox = function () {
+		if (self.type === 'cactus') {
+			return {
+				x: self.x - graphics.width / 2,
+				y: self.y - graphics.height,
+				width: graphics.width,
+				height: graphics.height
+			};
+		} else {
+			return {
+				x: self.x - graphics.width / 2,
+				y: self.y - graphics.height / 2,
+				width: graphics.width,
+				height: graphics.height
+			};
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
+	backgroundColor: 0xFFFFFF
+});
+
+/**** 
+* Game Code
+****/ 
+// Game state
+var gameRunning = false;
+var gameSpeed = 8;
+var score = 0;
+var highScore = storage.highScore || 0;
+var lastObstacleTime = 0;
+var nightMode = false;
+var nextSpeedIncrease = 500;
+var nextCloudTime = 0;
+// Game objects
+var dino;
+var ground;
+var obstacles = [];
+var clouds = [];
+// UI elements
+var scoreTxt;
+var highScoreTxt;
+var tapToStartTxt;
+// Ground
+ground = LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0
+});
+ground.y = 2732 - 200; // Position ground near the bottom
+game.addChild(ground);
+// Score text
+scoreTxt = new Text2('0', {
+	size: 60,
+	fill: 0x000000
+});
+scoreTxt.anchor.set(1.0, 0);
+scoreTxt.x = 2048 - 30;
+scoreTxt.y = 30;
+game.addChild(scoreTxt);
+// High score text
+highScoreTxt = new Text2('HI: ' + highScore, {
+	size: 60,
+	fill: 0x888888
+});
+highScoreTxt.anchor.set(1.0, 0);
+highScoreTxt.x = 2048 - 30;
+highScoreTxt.y = 100;
+game.addChild(highScoreTxt);
+// Tap to start text
+tapToStartTxt = new Text2('TAP TO START', {
+	size: 80,
+	fill: 0x000000
+});
+tapToStartTxt.anchor.set(0.5, 0.5);
+tapToStartTxt.x = 2048 / 2;
+tapToStartTxt.y = 2732 / 2;
+game.addChild(tapToStartTxt);
+// Initialize dino
+dino = new Dino();
+dino.x = 300;
+dino.groundY = ground.y;
+dino.y = dino.groundY;
+game.addChild(dino);
+// Start the game
+function startGame() {
+	if (!gameRunning) {
+		gameRunning = true;
+		gameSpeed = 8;
+		score = 0;
+		nextSpeedIncrease = 500;
+		// Reset dino
+		dino.reset();
+		// Clear obstacles
+		for (var i = obstacles.length - 1; i >= 0; i--) {
+			obstacles[i].destroy();
+		}
+		obstacles = [];
+		// Clear clouds
+		for (var i = clouds.length - 1; i >= 0; i--) {
+			clouds[i].destroy();
+		}
+		clouds = [];
+		// Update UI
+		tapToStartTxt.visible = false;
+		scoreTxt.setText('0');
+		// Set background to day mode
+		game.setBackgroundColor(0xFFFFFF);
+		nightMode = false;
+	}
+}
+// Collision detection
+function checkCollision(dinoHitBox, obstacleHitBox) {
+	return !(dinoHitBox.x + dinoHitBox.width < obstacleHitBox.x || dinoHitBox.x > obstacleHitBox.x + obstacleHitBox.width || dinoHitBox.y + dinoHitBox.height < obstacleHitBox.y || dinoHitBox.y > obstacleHitBox.y + obstacleHitBox.height);
+}
+// Spawn a new obstacle
+function spawnObstacle() {
+	var type = Math.random() > 0.3 ? 'cactus' : 'pterodactyl';
+	var obstacle = new Obstacle(type);
+	// Position it
+	obstacle.x = 2048 + 100;
+	if (type === 'cactus') {
+		obstacle.y = ground.y;
+	} else {
+		// Pterodactyls can be at different heights
+		var height = Math.random() > 0.5 ? 200 : 300;
+		obstacle.y = ground.y - height;
+	}
+	obstacle.setSpeed(gameSpeed);
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+// Spawn a new cloud
+function spawnCloud() {
+	var cloud = new Cloud();
+	cloud.x = 2048 + 100;
+	cloud.y = ground.y - 300 - Math.random() * 200;
+	clouds.push(cloud);
+	game.addChild(cloud);
+}
+// Game over
+function gameOver() {
+	gameRunning = false;
+	LK.getSound('collision').play();
+	// Update high score
+	if (score > highScore) {
+		highScore = score;
+		storage.highScore = highScore;
+		highScoreTxt.setText('HI: ' + highScore);
+	}
+	tapToStartTxt.setText('GAME OVER - TAP TO RESTART');
+	tapToStartTxt.visible = true;
+	// Show game over screen
+	LK.showGameOver();
+}
+// Game input handlers
+game.down = function (x, y, obj) {
+	if (!gameRunning) {
+		startGame();
+	} else {
+		// If user clicks/taps top half of screen, jump
+		if (y < 2732 / 2) {
+			dino.jump();
+		} else {
+			// If user clicks/taps bottom half, duck
+			dino.duck();
+		}
+	}
+};
+game.up = function (x, y, obj) {
+	// Stop ducking when released
+	if (gameRunning) {
+		dino.stopDucking();
+	}
+};
+// Game update loop
+game.update = function () {
+	if (!gameRunning) {
+		return;
+	}
+	// Update score
+	score++;
+	if (score % 10 === 0) {
+		scoreTxt.setText(Math.floor(score / 10));
+	}
+	// Day/night transition every 1000 points
+	if (score % 1000 === 0 && score > 0) {
+		nightMode = !nightMode;
+		game.setBackgroundColor(nightMode ? 0x333333 : 0xFFFFFF);
+		scoreTxt.setFill(nightMode ? "#FFFFFF" : "#000000");
+		// Play milestone sound
+		LK.getSound('milestone').play();
+	}
+	// Increase speed every 500 points
+	if (score >= nextSpeedIncrease) {
+		gameSpeed += 0.5;
+		nextSpeedIncrease += 500;
+		// Update speed of existing obstacles
+		for (var i = 0; i < obstacles.length; i++) {
+			obstacles[i].setSpeed(gameSpeed);
+		}
+	}
+	// Spawn obstacles
+	if (LK.ticks - lastObstacleTime > 60 + Math.random() * 60) {
+		spawnObstacle();
+		lastObstacleTime = LK.ticks;
+	}
+	// Spawn clouds
+	if (LK.ticks - nextCloudTime > 180) {
+		spawnCloud();
+		nextCloudTime = LK.ticks + Math.random() * 180;
+	}
+	// Update dino
+	dino.update();
+	// Collision detection and update for obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].update();
+		// Check collision with dino
+		var dinoHitBox = dino.getHitBox();
+		var obstacleHitBox = obstacles[i].getHitBox();
+		if (checkCollision(dinoHitBox, obstacleHitBox)) {
+			gameOver();
+			return;
+		}
+		// Remove obstacles that are off-screen
+		if (obstacles[i].x < -100) {
+			obstacles[i].destroy();
+			obstacles.splice(i, 1);
+		}
+	}
+	// Update clouds
+	for (var i = clouds.length - 1; i >= 0; i--) {
+		clouds[i].update();
+		// Remove clouds that are off-screen
+		if (clouds[i].x < -150) {
+			clouds[i].destroy();
+			clouds.splice(i, 1);
+		}
+	}
+};
+// Play background music
+LK.playMusic('bgMusic', {
+	volume: 0.3
 });
\ No newline at end of file