Really original entry. Liked the visuals, especially effect when shooting on things works really well.
Being locked to the floor is a bit frustrating especially at the beginning The door could be a bit more visible (once your understand the pattern you find it easily tho). The overcharge mechanic with the gun gets a bit frustrating especially on the second boss (the one that give the shield). Maybe there is a bonus to reduce the cooldown i didn't found. The head movement should be reduced imo.
I had a lot of fun playing the game, lots of cool design idea ! Congrats !