The codes should work with the region specified but may work for other regions as well.
Device Compatibility: Action Replay, CodeBreaker & GameShark
All Character Equipment
500005010000
300100a60001
500005010000
300100ad0001
500005010000
300100b40001
500003010000
300100bd0001
500005010000
300100c50001
500005010000
300100cc0001
500005010000
300100d30001
500004010000
300100da0001
500003010000
300100e00001
500005010000
300100e80001
500005010000
300100ef0001
500005010000
300100f60001
300100fd0001
P2 Infinite Freestyle Time
801430b82400
Unlock All Characters
500014010000
300100720001
Have Arroyo Grande 2 Level
3001017a0001
Have Seacliff 2 Level
3001017b0001
Have Aztec Island 1 Level
3001017C0001
Have Lakeside Park 2 Level
3001017d0001
Have The Metro Level
300101820001
Have Lakeside Park 3 Level
300101830001
Have Seacliff 3 Level
300101840001
Have Arroyo Grande 3 Level
300101850001
Have Aztec Island 3 Level
300101860001
P1 Infinite Freestyle Time
80143bd02400
Infinite Purchase Points
8001010a00ff
Max Race Points (Circuit)
300104e00063
300102240063