Good game, but I do have a complaint. I know this is a demo but there a list it needs to improve:
The control is all click. The movement, the shooting and picking up weapons are relying on the mouse, making the game feel a little uncomfortable to use. Also, the fact that there one room with lots of enemies makes the game a bit more repetitive rather than being a challenge game.
Overall, being a parody of SuperHot (it seems you even make another one: SuperNot which I may check it out) and a 3d version of it, I like the concept of it. Keep it up!