In an interview with British studio Rare, an interesting tidbit about the N64 project Dinosaur Planet was revealed.
Speaking to Retro Gamer, Phil Tossell revealed that the original concept was designed to be a "hybrid of Diddy Kong Racing and adventure game". Instead of simply roaming about this new world, there would be "some kind of track in it and a race as part of the story" in each level.
Dinosaur Planet was eventually lapped up by Nintendo, with Shigeru Miyamoto suggesting that the world of Star Fox would be a good fit for the project and the rest is history.
Could a hybrid between Dinosaur Planet and Diddy Kong Racing have worked?