Good things first: The visuals and controls are good and original. The idea is something I would've honestly never thought of, and theoretically it sounds very creative and like a great game idea.
The UI is not fitting and neither is the font. It was not clear how to get started with the game and how to progress and sometimes the camera would clip out of the walls and the view would look weird. I think some sort of tutorial or interactive explanation would be very useful, along with a more suitable UI and font. Other than that, very creative game; very nice!