Use WASD or arrow keys to move. Your goal is to dodge and shoot the enemies, which are the black dots. Every time you beat a level and destroyed all the enemies, the newer level will have more. There are infinite levels and the goal is to stay alive as long as possible. There are two bars. One is called energy and the other health. Your energy will slowly come back but your health won't. Everytime you move, some energy disappears. If you run out of energy, your tank will stop and will not move until the energy bar refills enough. Once you die, you will see your score and the cloud score (world highest score)