While playing a game, enter one of the following codes:

CHEAT CODE - Result
GIMMEALL - All cars and missions 
RESETLAP - Reset lap records and times 
KARTSON - Enable karts 
KARTSOFF - Disable karts 
KEYFOUND - All padlock keys found 
RESETKEY - Reset all keys 
CINEMAON - Unlock all FMV sequences 
RESETFMV - Reset all FMV sequences 
RESETALL - Return to default settings