This game is also available on PS1.
that takes me back - This enables backwards mode!
i have the key - This unlocks all cars and tracks
DFGY - All Cars
ERDRTH - All Tracks
CVCVBM - All Quick Race Tracks
OCVCVBM - No Quick Race Tracks
QTFHYF - Shorter Tracks
OPIOP - All Challenges
OPOIOP - No Challenges
FFOEMIT - Disable Checkpoint Times
NOEMIT - Enable Checkpoint Times
RFGTR - Stop The Bomber Mode