In Mario Kart
In pre-release screenshots of Mario Kart 64, a Magikoopa was playable, but before the game's final release, he was replaced by Donkey Kong. Also in Mario Kart: Super Circuit, one can be seen near the end of Bowser Castle 3 hovering back and forth. He did not appear in the reincarnation of it in Mario Kart Wii, but a bike shaped like a Magikoopa, the Magikruiser, can be unlocked in the game. A Magikoopa also has an unused icon for Mario Kart 8, meaning he was planned to appear in that game.