It's literally this how it looks like. I have no idea where the skullgirls creators got this idea. The tail looks that way because that is the part that can "store" the energy. They are giant balls in the realms. It lives in multiple realms. As I get rid of them it gets less and less intelligent. And yes it can literally go through your head like that. I didn't encounter this kind of a "pure" parasite before.

And it's not kundalini. Not the cool pet of Samael. You can mindcontrol it to give you minor sacral chakra orgasm but it's so negligible I will not keep it for that.

And no I don't think this thing can make your corpse come back from the dead