Banjo-Karting

Banjo-Karting, or Banjo-Kazoomie, was an unreleased Banjo-Kazooie racing game that was developed for the the Xbox 360. It was started by Rare Ltd. just before the release of Banjo-Kazooie: Nuts & Bolts. The concept is somewhat similar to Banjo-Pilot, except that the characters would race in constructed vehicles made up of parts (like in Nuts & Bolts). The game was cancelled when Rare began to only develop Kinect software.

One of the cars originally featured in the prototype would later be incorporated into Sonic & Sega All-Stars Racing with Banjo-Kazooie.

Quotes
"I've always wanted to do a racing game. I got to spend two weeks working on a prototype racing game for the Xbox. It was codenamed 'Banjo-Kazoomie', and it was a kind of kart racer, but you constructed the karts out of different parts, so I guess it was kind of a precursor to 'Nuts & Bolts '. But for those two weeks I was doing the driving mechanics for it."

- Brendan Gunn

"We had a coin-up for a while, didn't we? Mark [Betteridge] was working on a racing game. Can you remember? It was a long time ago now. The working name was 'Balls-Out', as in flat-out."

- George Andreas