BEHOLD!!!! The first of the 4 Halloween characters! Jesus Christ this one took too long, but he's here! In my take of him, he's some bizarre mish-mash of different endos, most of which I modeled only for this fellow(took some notes from the Mimic while designing this guy). If it's not obvious enough, use the mouse to control the flashlight in order to get a better look at him.
@ShadeDemon for the original design and permission to do this. If you're using this boi, be sure to credit ME and @ShadeDemon. Fun fact: I originally kept a separate sprite that had a cleaner version of Void's endo, but I accidentally deleted it. :) *pain*