This game is also available on PS2.
If done correctly an enter cheat screen will appear.
Type in following codes:
TopBird - Stay on watercraft
Passport - All levels
F18 - Race F18 in time trials
IBelieve - Race UFO in time trials
AllChar - All charcters
Hobble - Normal AI on Hard
AllOutAI - Very Hard AI
LaPinata - All Wetsuits
PMeterGo - Max performance meter
SEADOO - Play sea trials against ghosted current selected player