Medal of Honor - Rising Sun cheats and cheat codes for Gamecube

Enter the following cheats at password screen at the options menu

BENGAL - Immortality 
GOURAMI - Bullet Shield 
DISCUS - Unlimited Ammo 
PLECO - Silver Bullet 
CICHLID - Achilles Head 
LOACH - All Replay Items 
ZEBRA - Invisible Soldiers 
TETRA - Men with Hats 
BOTIA - Perfectionist Mode
MOOR - Rubber grenade mode
LELEUPI - Snipe-O-Rama mode
SPINEFOOT - Big arms 
ALBINO - All missions

Control main menu:
Move the C-stick to control the background at the main menu. 

Multi-player costumes:
After you completed a mission and you get a medal, you also will get 
a skeleton key. This key opens a box which contains a new costumes 
for multiplayer mode. Note: There is only one box per mission.
There is no box on Pearl Harbor mission.