Diddy Kong
Aside from "Donkey Kong Racing", two other sequels to "Diddy Kong Racing" were in development. One, named "Diddy Kong Pilot", with planes as the only vehicle, was planned for a release on the Game Boy Advance. Originally announced alongside "Donkey Kong Racing" at E3 2001, the game became "Banjo-Pilot" after Microsoft's acquisition of Rare. At the time of its announcement, the game featured the ability to play using a tilt function as well as a D-pad, and contained at least five tracks. The other, titled "Diddy Kong Racing Adventure", was a rejected pitch made by Climax Studios for the Nintendo GameCube around 2004. The project was never announced to the public in any capacity, and only became known after a video game archivist acquired the prototype and published a video about it in November 2016.