9 second boost
At the start of the race, between countdown from 3 to 2 rev your boat up about halfway, then let go to let it go back down. When it is all the way back right at 1 rev it up again and hold it until the race starts. If you did it you will start with a nine second boost. It may take some practice, but it works for all boats.
All tracks
Finish in the top 5 on ANY track and enter for your initials "?PB". This will unlock the tracks.
Gameshark codes
Must Be On: f124ffa02400
Place 1st All The Time: 812c4c960001
Infinite Turbo: 802c4c9d00ff
Unlock All Tracks:
812b5c940101
812b5c960101
812b5c980101
812b5c9a0101
812b5c9c0101
812b5c9e0101
812b5ca00101
Unlock All Boats:
812b5ca20101
812b5ca40101
812b5ca60101
812b5ca80101
812b5caa0101
812b5cac0101
812b5cae0101
Hydro Jump
To do the Hydro Jump you must have some boost power. To do it brake and then really fast do your booster then the boat will jump up into the air!
Infinite turbo
Pause the game and press A, B, Z(2), R, L, Up, C-Down, C-Left, Right, Z.