Was Coco a Ghost...? (Boku no pico)

I just finished boku no pico and I'm honestly...confused as to whether or not coco was a ghost. At the beginning Pico and Chico were just walking around the city until all the lights went out and Coco appeared out of nowhere, but the main point is; every time Coco appeared the lights went out and what not. Though there may have been other reasons indicating that coco was a ghost I just don't even know...
Anyone else thought coco was a ghost?

No. Ghost don't shower and piss.

Ah, you have a good point...Guess I was over thinking things...

Also Have you ever tried Buttfucking a ghost? Damn near impossible.

Too many holes in that show. Of all kinds. Font even bother analyze. Too scary.