I've found the word spelled "Papimer" as well. But the info on the web is scarce.
Which Megaten game is that from? Lol, that makes me wonder about the classic portrayal of demons and all that. What's so evil about them? If I were to portray my impression on a demon on page, both its looks and what it does, I'd probably have it rated X and burned right after that.
Take the portrayal of demons in movies like End of Days. The hell? The Devil's evil deeds are limited to killing people in car accidents and shit? How distinctively evil...! Now I see why he's got his reputation as the prince of darkness.

Now things like that Megaten demon are a bit closer to the mark. Imagine Schwarzenegger fighting something like that at the endgame.

imageimage"I'M A COP YOU IDIOT!!!"