YMMV / JoJopolis

• Ensemble Dark Horse: Jonnie Newt. With his balanced-yet-awesome ability, his great design and being the only person that tags along with Jordan at the end, the comic's fanbase loves him. So much in fact, that a spinoff starring him, A$AP Mob Feedback, is in development, and has had Approval of God.
• Epileptic Trees: Is Rose a Rock Human? There's no confirmation either way, but there are many odd comments that could point to it, such as Jordan noting that her skin was like Rock after being affected by Everywhere At The End Of Time, and the position that she passes out in after this resembling the stock Rock Human hibernation pose. The fact that her alternate universe equivalent is one doesn't help either.
• Memetic Mutation: John Football ^Explanation  A one-off character that appears at the Rose Bowl that is an unfortunate victim of God Only Knows, and has become an Ensemble Dark Horse for reasons that can only be explained as ironic