Uhmmm....
I don't even like the Sonic franchise, save for how people employ Adventures of Sonic the Hedgehog into their Youtube Poops. In fact, I think I can safely say that if there's anything Sonic-related that I dislike more than the franchise, it's its fanbase and their abominable, unimaginative fancharacters.
Well, maybe, but on one condition: Only if my fan character can be some kind of disgusting internal parasite who slowly kills everyone.
Slim the Tapeworm? Wiggles the Liver Fluke?