The Red Mist / Geburah / Kali's theme from the game "Library of Ruina" the level ends pretty abruptly, but that's not my problem, when trying to find this song, all that came up was suicide squidward videos, and it's not the fnf one, so that makes this level deserve at least 10 outta 10 :)
Also, while making this level, I got tired as balls, and got super lazy throughout pretty much the whole level, so enjoy this totally not in sync level :)).