Kiill all enemy. Arcade shooter game. Space shooter with spaceship upgrade possibilities. You can use the Shop at the beginning of every level to buy a more advanced spaceship, weapons, armor plating, reactor, shield, and much more. Kiill all enemy. Arcade shooter game. Space shooter with spaceship upgrade possibilities. You can use the Shop at the beginning of every level to buy a more advanced spaceship, weapons, armor plating, reactor, shield, and much more. For more information about game objects, see the Encyclopedia, which contains a brief description of every object in the game.