The following are known Action Replay Codes for MX 2002 featuring Ricky Carmichael on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
47ee2b17
c823b7ed
ee148269
9fde23af

Max Score Freestyle
83c5f551
37eb0caa
79e14063
72cf494e

AR Button: Slow
dbba3a89
4cb74b94