It's a mechanical gun simulator that translates every part of movement on a gun into keyboard input. You move around a randomly generated map collecting taped recordings and you get killed instantly by one of two types of enemies. I would have played all of it if the time-to-kill was one or two shots slower and if you didn't lose all progress once you died and had to find all eleven tapes again. Also you can't skip the voice recordings. But I got it for 99 cents. Unique and strange.