Shadow Mario is a creator of multiple Releasio games. He has worked on Super Releasio Bros., Super Releasio Bros. 2u, Super Releasio Kart, and Super Releasio Kart 64. Shadow Mario appeared As an unlockable character in Super Releasio Bros. 2j: The Lost Toads, and can be gotten after reaching Void-9. He used to be a Traitor Toad, but he learned from his mistakes and now faithfully serves Toad. Shadow Mario's Avatar: