I would have loved to see where you took this game, seems like you had a great vision in mind!

Very interesting concept! The game is basically impossible because it is an instant death. It would be nice to have polish in the sense of sounds/music and a more fleshed out art style.  Also, it took me a few seconds to understand how the games concept and items work. A brief explanation would be greatly appreciated! The explanation can even be added now on your games page and might even bring in a few more people to see it :) 

Edit: Also forgot to add that shooting with space is very confusing when you are aiming with the mouse. I would suggest switching to use "Fire1" instead which in unity will make it use the left mouse click!

Character controller is rough. The complete lack of music or sound makes it a very... desolate experience. Good effort though!