Super Spin

Yoshi Racing is a rejected pitch for a 3D game in the Yoshi franchise. The game was revealed in an article by Eurogamer detailing Argonaut Games' involvement in the development of Star Fox where the game was described as a 3D platformer and left unnamed, while a message board post by an Argonaut employee named the game "Yoshi Racing" and described it as a character racing game. Following their successful collaboration with Nintendo on Star Fox, British game developer Argonaut Games pitched a 3D game starring Yoshi and made a prototype for it. However, Nintendo did not follow on the offer, with one Argonaut employee speculating this was because the company did not want to let third-parties use its characters. Following this setback, Argonaut decided to retool the prototype as an original IP, Croc: Legend of the Gobbos.

Diddy Kong Pilot was the planned follow-up to Diddy Kong Racing, but instead focusing only on flying and nothing else. Due to Rare being acquired by Microsoft, Rare was already far at work into the game and instead of scrapping it altogether, the game was removed of all Donkey Kong references and was turned into Banjo-Pilot. There are two known very different versions of the game, since it was remade from scratch mid-development.

A James Bond game for the Virtual Boy was in development by an unknown studio (possibly T&E Soft), during the years when Nintendo held the publishing rights for the James Bond franchise. Only one screenshot of the game exists from a brochure, and first-hand accounts of the game are scarce. The game appears to have been a racing/shooting game.

Cancelled port for the Game Boy Color.

Mario Kart XXL is a Game Boy Advance tech demo created by Denaris Entertainment Software for Nintendo in 2004. It demonstrates the Game Boy Advance's ability to render and scale/rotate two different background layers.

Virtua Hamster is a unreleased Sega 32X game. The game was to star a variety of selectable rodents attached to rocket packs who could travel through a series of connected tubes, fighting each other and avoiding various obstacles. It was built solely with the 32X in mind, however after the console failed development moved to the Sega Saturn for a short while before being axed completely. It is also reported that Sega of Japan were not keen on use of the "Virtua" in the game's name, possibly so that the game was not associated with Sega AM2's Virtua Fighter and Virtua Racing. An alternate box mock-up uses the title Virtual Hamster instead. In August 2009, Ryo Suzuki of SEGASaturno.com dumped an early prototype version of this game. In it, the only selectable character is hamster, Chip, and there is only one empty level (though there are numerous non-moving 3D models of other characters and items dotted around the map). A resets the game, and B/C can be used to move the camera forwards and backwards through the tube. There are also two Sega screens.

Tamiya Racing 64 is a tech demo for a racing game (presumably the similarly unreleased Mini Racers) with licensed remote-controlled cars, featuring very sensitive controls and vacuum cleaner engine sounds. It was developed by Intermetrics, associated with Looking Glass Studios.

Mini Racers is a Driving game, developed and published by Looking Glass Studios, which was cancelled before it was released.