Hydro Thunder Cheats

To race in a fishing boat, unlock all the hidden tracks first. Then, at the Boat Selection screen, highlight Thresher and then hold the L and R buttons and press View twice. Then select Chumdinger and you will race in a fishing boat.

Before you start a game, head to the Options menu and highlight back. Press up, up, down, up, down, down, start and you will open another secret track!

Pause the game and when the game is paused, press the X and Y buttons simultaneously.

Enter the following code when you get a high score : ?PB