The codes should work with the region specified but may work for other regions as well.
Device Compatibility: Action Replay, CodeBreaker & GameShark
Always First Place
e10d64e50000
300d64e50000
Start On Last Lap
d00d64b80000
800d64b80002
Infinite Special
800d65540006
Max Championship Points
300c21dc00ff
Unlock Everything
800986e8ffff
800986f0ffff
800986f2ffff
800986f4ffff
800986f8ffff
800986fcffff
All Challenges Complete
800986ecffff
800986eeffff