Donkey Kong Racing is a spin-off title featuring characters from the Donkey Kong franchise in a kart racing game. It differs from Donkey Kong 64's platforming focus, instead offering competitive racing gameplay.   While featuring familiar characters, it's a distinct genre change for the series.  Information about the developer and publisher would need further research, as this game differs significantly in gameplay from the mainline title. 

Donkey Kong Racing

Donkey Kong 64 (USA)