NBA 2K3 Codes -

Unlock cheat menu:)
Submit the case sensitive code the options menu and choose GAMEPLAY. Press and hold + and push . You will now see a CODES section in the OPTIONS menu.

Unlock bonus teams:)
Submit the case sensitive code MEGASTARS to unlock the Sega Sports, Visual Concepts, and Team 2K2 in exhibition and street modes.

Duotone graphics:
Submit the case sensitive code DUOTONE to have your player in color with all other players in black and white.

Trash in the streets:
Submit the case sensitive code SPRINGER to see trash in the streets. REMEMBER: This does not work in the gym.

Alternate entrance:
At the screen where all the NBA teams are shown, press , , , or to see a different entrance.

Get an easy lay-up:
While doing a dunk, push in the air to perform an easy lay-up.