Top-down shooter that takes everything it can from the movie Aliens. Clean out each level of the space station and then take the lift down to the next one. You collect money that can be used to buy weapons or more ammo for all the aliens that keep spawning from the holes in the ground. Keys are needed for doors and some doors are one way so one need to be careful to not get stuck in a room with no keys . The only thing I really dislike about the game is that every levels end in a timed run to the lift. If you fail it is game over no matter how many re-spawns you had left.