Cheats for Hydro Thunder (DC)

Quick start
Note: This trick assumes the game is under the default controller setting. Hold L during the pre-race countdown. Release L and hold R when the countdown reaches "3". Release R and hold L when the countdown reaches "2". Release L and hold R when the countdown reaches "1". If done correctly, your boat will get a faster start and a four-second boost.

Full pause screen
Pause the game and press X + Y.