You are G.Nius, a robot, and your job is to supervise the maintenance robots of the space station, when it makes a crash landing on an unknow planet... Your aim : to escape from the wreck before it disintegrates completely, keeping out of the way of the robots, who by now have become uncontrollable.
Unfortunately you are at the bottom of the ship, the escape is at the top, and the lift is not working. To activate the lift, you have to visit all rooms of a floor and destroy the switches. This procedure has to be repeated on every floor. There are various obstacles on your way : traps, falling wreckage and havoc security robots. Another obsacle are the holes in the ground which bring G.Nius back to a lower floor when falling in. You can find additional ammo for your gun and energy by killing the security robots. The rooms, shown in a half-isometric perspective, are randomly divided when starting a new game.