Thanks for the game!
I liked how methodically the game was following established simple rules and how well were they communicated to the player through the use of color, sounds, and UI. As I was playing I was always aware of what I have to do and what is my ultimate goal, yet always expecting something strange to happen. The pacing is good, and I'm especially thankful for including the run option to make the second playthrough slightly quicker. The use of sounds is effective, 3D models design is simplistic yet self-sufficient. Have I already mentioned that the use of color in this game is fantastic?
From now on I am intended to reference your game as a great example of a 3D first-person game jam project that finds strength in its limitations :)