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XBox - NBA 2K3 cheats

Go to the options menu after choose "Gameplay". 
Hold D-pad Left + Left Analog-stick Right and press Start. 
This will unlock the "Codes" selection in the options menu.
After enter the following case-sensitive codes:

3 bonus teams: Enter MEGASTARS as a cheat code
Trash in the streets: Enter SPRINGER as a cheat code
Black and white Graphics: Enter DUOTONE as a cheat code

Easy lay-up
While doing a dunk, push Square in the air to do an easy lay-up.

Win Easy:
Create a full team of playersand put there statistics all the way up then 
create a team to put them on play some games shoot some threes and 
you will win.
Submitted by: Lonely soldier Eric