Click on the "PLAY" button and then select one of two cars. Then select your weapon (Machine Gun or Shotgun). As you earn more points in the game, other cars and weapons will be offered to you for purchase.
Your goal is to shoot your way forward without bumping into other cars or road blocks. On the way, you can pick up power ups like in the photo below. To activate them, click on them with your mouse or finger. To move between lanes, click with your mouse or finger on either side of the car, there are 4 lanes to choose from.