It would be remiss to include Skullomania on this list if he wasn't accompanied by his rival, buddy, and possible brother, Shadowgeist. Unfortunately, this isn't one of those sibling pairings where one brother turned out really well at the expense of the other one, and Shadowgeist is equally - if not more - of a doofus than his brethren. With his mismatched superhero outfit, naff symbol in the middle of his chest, and fragile-looking lightning-shaped ornament on his head (you can just imagine him breaking down in tears if you broke it, can't you?), Shadowgeist looks like a character from an obscure 80s childrens' morning cartoon.