I'll preface this comment with the admission that I didn't get past the first level. The clipping mechanic just never clicked for me. The atmosphere in terms of audio is there, but the visuals don't really support it, and the small typos really hurt when the text is so dominant (which is very cool btw)
The controls were also very sluggish to the point of frustration. The only way I made progress was with the unlimited jump is fun but that makes the game very breakable considering the very first hallway isn't closed off.
I see a lot of potential here, it's just sadly obscured by a few small gameplay oversights that are too big to ignore
(Written by Snek of SFG :3)