The Hulk – Gamecube

The Hulk - Platform: Gamecube

Enter these at the "code input" option at the options screen. 

GMMSKIN - Invincibility 
FLSHWND - Regenerator 
GRNCHTR - Unlimited Continues 
HLTHDSE - Double Hulk HP 
BRNGITN - Double Enemies' HP 
MMMYHLP - Half Enemies' HP 
NMBTHIH - Reset High Score 
TRUBLVR - Level Select