Splashdown

Cheat Code Central
Provides cheats and codes for the Xbox version.
http://www.cheatcc.com/xb/splashdown.html

Cheat Code Central
Provides cheats and codes for the PS2 version.
http://www.cheatcc.com/psx2/splashdown.html

Game Revolution
Offers cheats, codes, and a review.
http://www.gamerevolution.com/oldsite/games/codes/ps2/splashdown.htm

Splashdown
Official site. Provides a description and game information.
http://www.gosplashdown.com/