this was a pretty interesting experience :) definitely a distinct take on the theme. I agree with some of the other comments that the controls were a bit sensitive since it was tricky to enter some corridors. Maybe adding some acceleration or friction to the move code might be something to look into. Also, the really small visibility definitely added to the challenge. I kept hoping to find an item or something that could increase the range.
I liked the proc gen aspect though and I'm curious how you handled ensuring that all levels would work with the spirit phase to ensure the player could always make the jump. nice entry.