NBA 2K3 – XBox

NBA 2K3 - Platform: XBox
      
Codes menu
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Select Gameplay at the options menu. Hold D-pad Left + Left 
Analog-stick Right and press Start. 

Hidden teams
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Enter "MEGASTARS" as a code at the cheat menu to unlock the VC, 
Sega, and NBA 2K2 teams. 

Garbage in the streets
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Enter "SPRINGER" as a code at the cheat menu to fill the streets 
with garbage.