Wave Race - Blue Storm cheats and cheat codes for Gamecube

Unlock Password option
Press Start + Z + X at the options menu to unlock a "Password" option.
Enter passwords the following password here:

Ride a Dolphin in free run mode: Enter "DLPHNMOD"

Unlock La Razza Canal time attack track: Enter "MJV8LKL6"

Unlock Southern Island stunt track: Enter "WCX5WP5A"

Unlock Expert Championship tournament: Enter "AJXY8P53"

Unlock Dolphin Park stunt track
Enter "KTUPWNPD"
Enter "463YWNX3" (japanise version)

Unlock Lost Temple Lagoon time attack track
Enter "LQ3TRKTE"
Enter "J784WMHF" (japanise version)

Weather
Reach 1st, 2nd, or 3rd place in the expert championship 

Try! mode
Finish training mode on beginner and master level

Unlock Arctic Bay track: Finish championship mode in normal mode
Unlock La Razza Canal track: Finish championship mode in advanced mode
Unlock Strongwater Keep track: Finish championship mode in expert mode


Change costume colors
Highlight a character at the character selection screen and hit Z.

In-game reset
During the game play, hold X + B + Start.