NBA 2K3 (Gamecube) Cheats & Tips
Cheats, codes, tips, hacks, how to's, and walkthroughs
While at the Gameplay Menu in the Options Menu, hold D-Pad Left + Left Analog Stick Right and press Start. This will unlock the Codes Options at the Options Menu.
Unlock the Sega Sports, Visual Concepts, and Team 2K2
Type in MEGASTARS as a code.
Type in DUOTONE as a code.
Trash in the Streets
Type in SPRINGER as a code.