===================================================================
--- original.js
+++ change.js
@@ -5,274 +5,271 @@
 
 /**** 
 * Classes
 ****/ 
-var Character = Container.expand(function () {
+var Bike = Container.expand(function () {
 	var self = Container.call(this);
-	var characterGraphics = self.attachAsset('character', {
+	var bikeGraphics = self.attachAsset('bike', {
 		anchorX: 0.5,
-		anchorY: 1
+		anchorY: 0.5
 	});
-	self.speed = 5;
-	self.isInVehicle = false;
-	self.currentVehicle = null;
+	self.speed = 0;
+	self.maxSpeed = 15;
+	self.acceleration = 0.3;
+	self.deceleration = 0.2;
+	self.turnSpeed = 3;
+	self.angle = 0;
+	self.isAccelerating = false;
+	self.isBraking = false;
+	self.lastY = self.y;
+	self.lastSpeed = self.speed;
 	return self;
 });
-var CityElement = Container.expand(function (type, gridX, gridY) {
+var PowerUp = Container.expand(function (type, x, y) {
 	var self = Container.call(this);
-	self.elementType = type || 'road';
-	self.gridX = gridX;
-	self.gridY = gridY;
-	var assetName = 'road';
-	if (self.elementType === 'building') {
-		assetName = 'building';
-	} else if (self.elementType === 'park') {
-		assetName = 'park';
-	} else if (self.elementType === 'road') {
-		assetName = 'road';
-	}
-	var elementGraphics = self.attachAsset(assetName, {
-		anchorX: 0,
-		anchorY: 0
+	self.powerType = type || 'speed';
+	self.lastIntersecting = false;
+	self.collected = false;
+	var powerupGraphics = self.attachAsset('powerup', {
+		anchorX: 0.5,
+		anchorY: 0.5
 	});
-	self.down = function (x, y, obj) {
-		// Interact with city element
-		console.log('Interacted with', self.elementType);
-	};
+	self.x = x;
+	self.y = y;
 	return self;
 });
-var Vehicle = Container.expand(function (type, x, y) {
+var RoadObstacle = Container.expand(function (type, x, y) {
 	var self = Container.call(this);
-	self.vehicleType = type || 'car';
-	self.speed = type === 'train' ? 8 : type === 'bus' ? 4 : 6;
-	self.occupied = false;
-	var assetName = type;
-	var vehicleGraphics = self.attachAsset(assetName, {
+	self.obstacleType = type || 'obstacle';
+	self.lastIntersecting = false;
+	var assetName = type === 'powerup' ? 'powerup' : 'obstacle';
+	var obstacleGraphics = self.attachAsset(assetName, {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	self.down = function (x, y, obj) {
-		if (!self.occupied && !character.isInVehicle) {
-			// Enter vehicle
-			character.isInVehicle = true;
-			character.currentVehicle = self;
-			self.occupied = true;
-			character.x = self.x;
-			character.y = self.y;
-			if (self.vehicleType === 'car') {
-				LK.getSound('carEngine').play();
-			} else if (self.vehicleType === 'train') {
-				LK.getSound('trainHorn').play();
-			}
-		}
-	};
+	self.x = x;
+	self.y = y;
 	return self;
 });
 
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x87CEEB
+	backgroundColor: 0x228b22
 });
 
 /**** 
 * Game Code
 ****/ 
-var cityMap = [];
-var cityWidth = 25;
-var cityHeight = 20;
-var tileSize = 100;
-var cameraX = 0;
-var cameraY = 0;
-var vehicles = [];
-var explorationMode = true;
-// Character
-var character = new Character();
-character.x = 1024;
-character.y = 1366;
-game.addChild(character);
+var obstacles = [];
+var powerups = [];
+var roadElements = [];
+var raceDistance = 0;
+var targetDistance = 10000;
+var gameSpeed = 2;
+var isGameRunning = true;
+// Bike
+var bike = new Bike();
+bike.x = 1024;
+bike.y = 2200;
+game.addChild(bike);
 // UI Elements
-var statusText = new Text2('EXPLORING CITY', {
-	size: 50,
+var speedText = new Text2('0 KM/H', {
+	size: 40,
 	fill: 0xFFFFFF
 });
-statusText.anchor.set(0.5, 0);
-LK.gui.top.addChild(statusText);
-var minimap = LK.getAsset('minimap', {
-	anchorX: 1,
-	anchorY: 0
-});
-LK.gui.topRight.addChild(minimap);
-var vehicleText = new Text2('ON FOOT', {
+speedText.anchor.set(0, 0);
+speedText.x = 50;
+speedText.y = 50;
+LK.gui.topLeft.addChild(speedText);
+var distanceText = new Text2('DISTANCE: 0M', {
 	size: 35,
 	fill: 0xFFFFFF
 });
-vehicleText.anchor.set(0.5, 1);
-vehicleText.y = -20;
-LK.gui.bottom.addChild(vehicleText);
-// Initialize city layout
-function generateCity() {
-	for (var x = 0; x < cityWidth; x++) {
-		cityMap[x] = [];
-		for (var y = 0; y < cityHeight; y++) {
-			cityMap[x][y] = null;
-			// Generate city layout
-			var elementType = 'road'; // Default roads
-			// Create building blocks
-			if ((x % 4 === 1 || x % 4 === 2) && (y % 4 === 1 || y % 4 === 2)) {
-				elementType = 'building';
-			}
-			// Add parks occasionally
-			if (x % 8 === 0 && y % 8 === 0) {
-				elementType = 'park';
-			}
-			var cityElement = new CityElement(elementType, x, y);
-			cityElement.x = x * tileSize;
-			cityElement.y = y * tileSize;
-			cityMap[x][y] = cityElement;
-			game.addChild(cityElement);
-		}
+distanceText.anchor.set(0.5, 0);
+LK.gui.top.addChild(distanceText);
+var controlText = new Text2('TAP TO ACCELERATE', {
+	size: 30,
+	fill: 0xFFFFFF
+});
+controlText.anchor.set(0.5, 1);
+controlText.y = -20;
+LK.gui.bottom.addChild(controlText);
+// Initialize racing track
+function generateTrack() {
+	// Create road segments
+	for (var i = 0; i < 30; i++) {
+		var roadSegment = LK.getAsset('road', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		roadSegment.x = 1024;
+		roadSegment.y = -200 - i * 150;
+		roadElements.push(roadSegment);
+		game.addChild(roadSegment);
 	}
-	// Spawn vehicles around the city
-	spawnVehicles();
+	// Spawn initial obstacles and powerups
+	spawnObstacles();
 }
-function spawnVehicles() {
-	// Spawn cars on roads
-	for (var i = 0; i < 8; i++) {
-		var car = new Vehicle('car');
-		car.x = Math.random() * 2048;
-		car.y = Math.random() * 2732;
-		vehicles.push(car);
-		game.addChild(car);
+function spawnObstacles() {
+	// Spawn obstacles
+	for (var i = 0; i < 15; i++) {
+		var obstacle = new RoadObstacle('obstacle');
+		obstacle.x = 700 + Math.random() * 648; // Keep on road
+		obstacle.y = -500 - i * 300;
+		obstacles.push(obstacle);
+		game.addChild(obstacle);
 	}
-	// Spawn buses
-	for (var i = 0; i < 3; i++) {
-		var bus = new Vehicle('bus');
-		bus.x = Math.random() * 2048;
-		bus.y = Math.random() * 2732;
-		vehicles.push(bus);
-		game.addChild(bus);
+	// Spawn powerups
+	for (var i = 0; i < 5; i++) {
+		var powerup = new PowerUp('speed');
+		powerup.x = 700 + Math.random() * 648;
+		powerup.y = -800 - i * 800;
+		powerups.push(powerup);
+		game.addChild(powerup);
 	}
-	// Spawn trains
-	for (var i = 0; i < 2; i++) {
-		var train = new Vehicle('train');
-		train.x = 200 + i * 800;
-		train.y = 300;
-		vehicles.push(train);
-		game.addChild(train);
-	}
 }
-function getGridPosition(worldX, worldY) {
-	return {
-		x: Math.floor(worldX / tileSize),
-		y: Math.floor(worldY / tileSize)
-	};
-}
-function exitVehicle() {
-	if (character.isInVehicle && character.currentVehicle) {
-		character.currentVehicle.occupied = false;
-		character.isInVehicle = false;
-		character.currentVehicle = null;
-		vehicleText.setText('ON FOOT');
-		LK.getSound('footsteps').play();
+function updateBikePhysics() {
+	// Handle acceleration and deceleration
+	if (bike.isAccelerating) {
+		bike.speed = Math.min(bike.speed + bike.acceleration, bike.maxSpeed);
+	} else {
+		bike.speed = Math.max(bike.speed - bike.deceleration, 0);
 	}
-}
-function updateVehicleMovement() {
-	// Move trains along tracks
-	for (var i = 0; i < vehicles.length; i++) {
-		var vehicle = vehicles[i];
-		if (vehicle.vehicleType === 'train' && !vehicle.occupied) {
-			vehicle.x += 2;
-			if (vehicle.x > 2148) {
-				vehicle.x = -100;
-			}
-		}
+	// Update speedometer with smooth tween
+	var displaySpeed = Math.round(bike.speed * 10);
+	speedText.setText(displaySpeed + ' KM/H');
+	// Apply engine sound based on speed
+	if (bike.speed > 0) {
+		LK.getSound('bikeEngine').play();
 	}
 }
-function updateVehicleStatus() {
-	if (character.isInVehicle && character.currentVehicle) {
-		var vehicleType = character.currentVehicle.vehicleType;
-		vehicleText.setText('DRIVING ' + vehicleType.toUpperCase());
-		statusText.setText('DRIVING IN CITY');
-	} else {
-		vehicleText.setText('ON FOOT');
-		statusText.setText('EXPLORING CITY');
+function spawnNewObstacles() {
+	// Spawn new obstacles ahead of the bike
+	if (Math.random() < 0.3) {
+		var obstacle = new RoadObstacle('obstacle');
+		obstacle.x = 700 + Math.random() * 648;
+		obstacle.y = -100;
+		obstacles.push(obstacle);
+		game.addChild(obstacle);
 	}
+	// Spawn powerups occasionally
+	if (Math.random() < 0.1) {
+		var powerup = new PowerUp('speed');
+		powerup.x = 700 + Math.random() * 648;
+		powerup.y = -100;
+		powerups.push(powerup);
+		game.addChild(powerup);
+	}
 }
-function moveCharacterInVehicle(x, y) {
-	if (character.isInVehicle && character.currentVehicle) {
-		var vehicle = character.currentVehicle;
-		var speed = vehicle.speed;
-		var deltaX = x - vehicle.x;
-		var deltaY = y - vehicle.y;
-		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
-		if (distance > 5) {
-			vehicle.x += deltaX / distance * speed;
-			vehicle.y += deltaY / distance * speed;
-			character.x = vehicle.x;
-			character.y = vehicle.y;
+function checkCollisions() {
+	// Check obstacle collisions
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		var currentIntersecting = bike.intersects(obstacle);
+		if (!obstacle.lastIntersecting && currentIntersecting) {
+			// Collision detected - crash bike
+			LK.getSound('crash').play();
+			tween(bike, {
+				speed: 0
+			}, {
+				duration: 500,
+				easing: tween.easeOut
+			});
+			LK.effects.flashScreen(0xff0000, 500);
+			bike.speed = 0;
 		}
+		obstacle.lastIntersecting = currentIntersecting;
 	}
+	// Check powerup collection
+	for (var i = powerups.length - 1; i >= 0; i--) {
+		var powerup = powerups[i];
+		var currentIntersecting = bike.intersects(powerup);
+		if (!powerup.lastIntersecting && currentIntersecting && !powerup.collected) {
+			// Powerup collected
+			powerup.collected = true;
+			LK.getSound('powerup').play();
+			bike.maxSpeed += 3;
+			tween(powerup, {
+				alpha: 0,
+				scaleX: 2,
+				scaleY: 2
+			}, {
+				duration: 300,
+				onFinish: function onFinish() {
+					powerup.destroy();
+					powerups.splice(i, 1);
+				}
+			});
+			LK.setScore(LK.getScore() + 50);
+		}
+		powerup.lastIntersecting = currentIntersecting;
+	}
 }
-generateCity();
+generateTrack();
 game.down = function (x, y, obj) {
-	// Move character to touch position when on foot
-	if (!character.isInVehicle) {
-		character.targetX = x;
-		character.targetY = y;
-	}
+	// Start accelerating
+	bike.isAccelerating = true;
 };
 game.up = function (x, y, obj) {
-	// Double tap to exit vehicle
-	var currentTime = Date.now();
-	if (currentTime - (game.lastTapTime || 0) < 300) {
-		if (character.isInVehicle) {
-			exitVehicle();
-		}
-	}
-	game.lastTapTime = currentTime;
+	// Stop accelerating
+	bike.isAccelerating = false;
 };
 game.move = function (x, y, obj) {
-	if (character.isInVehicle) {
-		moveCharacterInVehicle(x, y);
-	} else {
-		// Move character on foot
-		var deltaX = x - character.x;
-		var deltaY = y - character.y;
-		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
-		if (distance > 5) {
-			character.x += deltaX / distance * character.speed;
-			character.y += deltaY / distance * character.speed;
-			LK.getSound('footsteps').play();
-		}
+	// Steer bike left and right
+	var deltaX = x - bike.x;
+	if (Math.abs(deltaX) > 20) {
+		bike.x += deltaX * 0.05;
+		// Keep bike on track
+		bike.x = Math.max(700, Math.min(1348, bike.x));
 	}
 };
 game.update = function () {
-	// Keep character in city bounds
-	if (character.x < 20) character.x = 20;
-	if (character.x > 2028) character.x = 2028;
-	if (character.y < 30) character.y = 30;
-	if (character.y > 2702) character.y = 2702;
-	// Update vehicle movements
-	updateVehicleMovement();
-	updateVehicleStatus();
-	// Move character towards target when on foot
-	if (!character.isInVehicle && character.targetX !== undefined) {
-		var deltaX = character.targetX - character.x;
-		var deltaY = character.targetY - character.y;
-		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
-		if (distance > 10) {
-			character.x += deltaX / distance * character.speed;
-			character.y += deltaY / distance * character.speed;
-		} else {
-			character.targetX = undefined;
-			character.targetY = undefined;
+	if (!isGameRunning) return;
+	// Update bike physics
+	updateBikePhysics();
+	// Move world elements down based on bike speed
+	var worldSpeed = gameSpeed + bike.speed * 0.5;
+	// Move road segments
+	for (var i = 0; i < roadElements.length; i++) {
+		var road = roadElements[i];
+		road.y += worldSpeed;
+		if (road.y > 2832) {
+			road.y = roadElements[(i - 1 + roadElements.length) % roadElements.length].y - 150;
 		}
 	}
-	// Keep vehicle and character together
-	if (character.isInVehicle && character.currentVehicle) {
-		// Keep character position synced with vehicle
-		character.x = character.currentVehicle.x;
-		character.y = character.currentVehicle.y;
+	// Move obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		obstacle.y += worldSpeed;
+		if (obstacle.y > 2832) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+		}
 	}
+	// Move powerups
+	for (var i = powerups.length - 1; i >= 0; i--) {
+		var powerup = powerups[i];
+		powerup.y += worldSpeed;
+		if (powerup.y > 2832) {
+			powerup.destroy();
+			powerups.splice(i, 1);
+		}
+	}
+	// Update race progress
+	raceDistance += worldSpeed * 0.1;
+	distanceText.setText('DISTANCE: ' + Math.round(raceDistance) + 'M');
+	// Check win condition
+	if (raceDistance >= targetDistance) {
+		isGameRunning = false;
+		LK.showYouWin();
+	}
+	// Spawn new obstacles and powerups
+	if (LK.ticks % 60 === 0) {
+		spawnNewObstacles();
+	}
+	// Check collisions
+	checkCollisions();
+	// Keep bike in racing bounds
+	bike.x = Math.max(700, Math.min(1348, bike.x));
 };
\ No newline at end of file