Roughly tied with Beelzebub as my favorite thing (thus far) in the game, the Basilisk has a beautifully colorful, terrifying and alien design all brought together by eye-stalks so unnaturally huge they can't even remotely fit in its head. Eye-stalks that actually used to be this guy's ears, and now also double as, er...wings. Yes, he can fly with those things, and it looks as funny as it sounds. The Basilisk is also blessed with what may be the coolest, darkest origin story yet. I would love so, so much to see an anime, manga or comic series that just further explored each fiend's tale.