>>111924652Well Sonichu was a Pikachu who turned into a Sonic clone, and Sonic actually existed, at least originally, so no, he's an OC, not just a fusion. If Sonic didn't exist in that universe, or Sonic transformed into a part Pikachu, or fused with one, that wouldn't be an OC, it would be a fusion, or fanmade transformation, or something like that.