I really liked the idea of the last room with the gun on the countdown but unfortunately it lagged and stuttered quite a bit! Also I guess I have a strong expectation that hitting "shift" will make me move faster because I was surprised to crouch several times lol! I appreciated the extensive settings menu available, but it would have been nice to be able to adjust it mid-game when I had a better sense for how the mouse moved, etc. Unique take on the theme!