You have a tank with which you must hit the largest number of targets on the horizon. The tank's sight is controlled by tilting the device (on a phone or tablet) or by moving the mouse (for a computer). You have a limited number of shells, which are replenished after accurate hits. The flight of projectiles is calculated according to physical laws, so it is not so easy to hit a moving target. The more opponents you hit, the more difficult the game becomes.