system
Given the following post, respond as if you're commenting on Reddit:
human
[Beetlejuice] What kind of ghost is Beetlejuice?

I know in the movie Beetlejuice is some kind of spirit in the afterlife, but what kind is he? How would you classify ghosts in general? What category does he fall under?
gpt
A Class 4 roaming vapor? 

Kidding aside, we don't have much of a spotter's guide to work off of. He may not be particularly distinct from the other ghosts we see except that he is more experienced. His claims of "living" through the Black Death suggest he was once a human himself in the 14th century. 

Though in another sense there is some oddly satanic/demonic subtext about him. He has apparently been cast out or exiled by Juno and her whole shower, he is associated with carrion insects and serpents, and he makes deals with people that always seem to backfire on them while serving his own sinister ends.