Aster is a classic arcade style shooter, with fast action, aliens, (and sex). Earth is fighting a losing battle against aliens from another galaxy, and things are looking bleak. In a desperate gambit, Earth's military calls upon a hired gun to turn the tide.
It's practically impossible to aim in this game, because movement has no friction, there's no side movement and stepping on the edge of the arena teleports you to the opposite side, as well as enemies and asteroids. Unless you stand still on brakes, but any damage pushes you away and all your attempts in aiming.
There are 4 heavy weapons: grenade against...