Really cool entry, visually I think you nailed it 100%, kinda felt portal x hotline Miami in a way. I do with you could do a "Make noise" sort of command to make enemys face you, would make the desync more relevant to normal playing.
Edit: I did go back and test, but it is possible to beat the whole game desyncless. just thought that would be an interesting run. I mainly went back cause I wanted to do another run tho :D
Great work!