===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,210 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Cactus = Container.expand(function () {
+	var self = Container.call(this);
+	var cactusGraphics = self.attachAsset('cactus', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.speed = gameSpeed;
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+var Dino = Container.expand(function () {
+	var self = Container.call(this);
+	var dinoGraphics = self.attachAsset('dino', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.groundY = 2600;
+	self.x = 300;
+	self.y = self.groundY;
+	self.velocityY = 0;
+	self.isJumping = false;
+	self.isDucking = false;
+	self.jumpPower = -25;
+	self.gravity = 1.2;
+	self.duckHeight = 40;
+	self.normalHeight = 80;
+	self.jump = function () {
+		if (!self.isJumping) {
+			self.velocityY = self.jumpPower;
+			self.isJumping = true;
+		}
+	};
+	self.duck = function () {
+		if (!self.isDucking && !self.isJumping) {
+			self.isDucking = true;
+			dinoGraphics.height = self.duckHeight;
+			self.y = self.groundY - self.duckHeight + self.normalHeight;
+		}
+	};
+	self.stopDuck = function () {
+		if (self.isDucking) {
+			self.isDucking = false;
+			dinoGraphics.height = self.normalHeight;
+			self.y = self.groundY;
+		}
+	};
+	self.update = function () {
+		if (self.isJumping) {
+			self.velocityY += self.gravity;
+			self.y += self.velocityY;
+			if (self.y >= self.groundY) {
+				self.y = self.groundY;
+				self.velocityY = 0;
+				self.isJumping = false;
+			}
+		}
+	};
+	return self;
+});
+var Ground = Container.expand(function () {
+	var self = Container.call(this);
+	var groundGraphics = self.attachAsset('ground', {
+		anchorX: 0,
+		anchorY: 0
+	});
+	self.speed = gameSpeed;
+	self.update = function () {
+		self.x -= self.speed;
+		if (self.x <= -2048) {
+			self.x = 0;
+		}
+	};
+	return self;
+});
+var Pterodactyl = Container.expand(function () {
+	var self = Container.call(this);
+	var pterodactylGraphics = self.attachAsset('pterodactyl', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = gameSpeed;
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0xffffff
+});
+
+/**** 
+* Game Code
+****/ 
+var dino;
+var obstacles = [];
+var groundElements = [];
+var gameSpeed = 8;
+var baseSpeed = 8;
+var maxSpeed = 20;
+var speedIncrement = 0.01;
+var obstacleSpawnTimer = 0;
+var obstacleSpawnDelay = 120;
+var minSpawnDelay = 60;
+var distance = 0;
+var isPressed = false;
+// Create score display
+var scoreText = new Text2('Distance: 0', {
+	size: 60,
+	fill: 0x000000
+});
+scoreText.anchor.set(0, 0);
+LK.gui.topRight.addChild(scoreText);
+scoreText.x = -300;
+scoreText.y = 50;
+// Create dino
+dino = new Dino();
+game.addChild(dino);
+// Create ground elements
+for (var i = 0; i < 3; i++) {
+	var ground = new Ground();
+	ground.x = i * 2048;
+	ground.y = 2620;
+	groundElements.push(ground);
+	game.addChild(ground);
+}
+function spawnObstacle() {
+	var obstacleType = Math.random();
+	var obstacle;
+	if (obstacleType < 0.7) {
+		// Spawn cactus
+		obstacle = new Cactus();
+		obstacle.x = 2200;
+		obstacle.y = 2600;
+	} else {
+		// Spawn pterodactyl
+		obstacle = new Pterodactyl();
+		obstacle.x = 2200;
+		obstacle.y = 2450 + Math.random() * 100;
+	}
+	obstacle.speed = gameSpeed;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+function checkCollisions() {
+	for (var i = 0; i < obstacles.length; i++) {
+		var obstacle = obstacles[i];
+		if (dino.intersects(obstacle)) {
+			LK.showGameOver();
+			return;
+		}
+	}
+}
+game.down = function (x, y, obj) {
+	isPressed = true;
+	if (!dino.isJumping) {
+		dino.jump();
+	}
+};
+game.up = function (x, y, obj) {
+	isPressed = false;
+	dino.stopDuck();
+};
+game.update = function () {
+	// Handle ducking
+	if (isPressed && !dino.isJumping) {
+		dino.duck();
+	}
+	// Update game speed
+	gameSpeed = Math.min(baseSpeed + distance * speedIncrement, maxSpeed);
+	// Update distance and score
+	distance += gameSpeed * 0.1;
+	LK.setScore(Math.floor(distance));
+	scoreText.setText('Distance: ' + Math.floor(distance));
+	// Update ground speed
+	for (var i = 0; i < groundElements.length; i++) {
+		groundElements[i].speed = gameSpeed;
+	}
+	// Spawn obstacles
+	obstacleSpawnTimer++;
+	var currentSpawnDelay = Math.max(obstacleSpawnDelay - distance * 0.5, minSpawnDelay);
+	if (obstacleSpawnTimer >= currentSpawnDelay) {
+		spawnObstacle();
+		obstacleSpawnTimer = 0;
+	}
+	// Update obstacle speeds and remove off-screen obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		obstacle.speed = gameSpeed;
+		if (obstacle.x < -100) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+		}
+	}
+	// Check collisions
+	checkCollisions();
+};
\ No newline at end of file