The codes should work with the region specified but may work for other regions as well.
Device Compatibility: Action Replay, CodeBreaker & GameShark
All Cups Unlocked
300a69b00003
300a69b40003
300a69b80003
Press Select=Start On Last Lap
d00a879efffe
80061f580002
d00a879efffe
80061f5c0003
Infinite Turbo-Easy
30061ec60004
All Difficulties
300a68dc0003
300a68e00003