/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var Motorcycle = Container.expand(function () {
	var self = Container.call(this);
	var motorcycleGraphics = self.attachAsset('motorcycle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 4.0,
		scaleY: 5.33
	});
	self.speed = 15;
	self.moveLeft = false;
	self.moveRight = false;
	self.moveBackward = false;
	self.moveForward = true;
	self.laneWidth = 512;
	self.currentLane = 1;
	self.minX = 256;
	self.maxX = 1792;
	self.velocity = {
		x: 0,
		y: 0
	};
	self.update = function () {};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2.67,
		scaleY: 3.54
	});
	self.baseSpeed = 12;
	self.speed = 12;
	self.lastY = self.y;
	self.setDifficulty = function (difficultyLevel) {
		self.speed = self.baseSpeed + (difficultyLevel - 1) * 2;
	};
	self.update = function () {
		self.lastY = self.y;
		self.y += self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a1a
});

/**** 
* Game Code
****/ 
var roadGraphic = LK.getAsset('road', {
	anchorX: 0.5,
	anchorY: 0.0
});
roadGraphic.x = 1024;
roadGraphic.y = 0;
game.addChild(roadGraphic);
var motorcycle = game.addChild(new Motorcycle());
motorcycle.x = 1024;
motorcycle.y = 2000;
var obstacles = [];
var score = 0;
var distance = 0;
var gameActive = true;
var spawnRate = 60;
var spawnCounter = 0;
var difficulty = 1;
var scoreTxt = new Text2('Score: 0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.x = 1024;
scoreTxt.y = 50;
LK.gui.top.addChild(scoreTxt);
var lanePositions = [256, 768, 1280, 1792];
game.move = function (x, y, obj) {
	if (!gameActive) return;
	var targetX = x;
	targetX = Math.max(motorcycle.minX, Math.min(motorcycle.maxX, targetX));
	motorcycle.velocity.x = (targetX - motorcycle.x) * 0.15;
	motorcycle.x += motorcycle.velocity.x;
};
game.update = function () {
	if (!gameActive) return;
	motorcycle.update();
	spawnCounter++;
	if (spawnCounter >= Math.max(30, spawnRate - Math.floor(difficulty))) {
		spawnCounter = 0;
		var randomLane = Math.floor(Math.random() * 4);
		var newObstacle = new Obstacle();
		newObstacle.x = lanePositions[randomLane];
		newObstacle.y = -100;
		newObstacle.lastY = newObstacle.y;
		newObstacle.lastWasColliding = false;
		newObstacle.setDifficulty(difficulty);
		obstacles.push(newObstacle);
		game.addChild(newObstacle);
		LK.getSound('whoosh').play();
	}
	distance++;
	difficulty = 1 + Math.floor(distance / 500);
	scoreTxt.setText('Score: ' + score);
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.update();
		if (obstacle.lastY <= 2732 && obstacle.y > 2732) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			score++;
			scoreTxt.setText('Score: ' + score);
			continue;
		}
		var isColliding = motorcycle.intersects(obstacle);
		if (!obstacle.lastWasColliding && isColliding) {
			gameActive = false;
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xFF0000, 500);
			LK.setScore(score);
			LK.showGameOver();
			return;
		}
		obstacle.lastWasColliding = isColliding;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -34,9 +34,11 @@
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
 	var obstacleGraphics = self.attachAsset('obstacle', {
 		anchorX: 0.5,
-		anchorY: 0.5
+		anchorY: 0.5,
+		scaleX: 2.67,
+		scaleY: 3.54
 	});
 	self.baseSpeed = 12;
 	self.speed = 12;
 	self.lastY = self.y;