Every major cartoon and comic book character has had its adversaries: Lex Luthor in Superman to the Green Goblin in Spider-Man. In the case of Mickey Mouse, it was originally Pete the Cat in the animated cartoons, but in the comic books there developed a mysterious black blobular adversary known as The Phantom Blot, who closely resembled another mysterious character, The Shadow. Blot also became a chief opponent of Goofy as Super Goof, who makes his first appearance in this series. — Mark Arnold