Unlock New Characters 
At the team select screen, go create a custom player and put these names on the 
custom player menu. Left mouse click the DONE button twice to unlock that 
character. 

LEMON BOY - Thor Herring 
BARRY DEJAY - Barry Dejay (duh!) 
KOBE - Kobe Bryant 
SHAQ - Shaquille O'Neal 
VINCE - Vince Carter 
MJ - Michael Jordan 
ALLEN IVERSON - Allen Iverson  

Funny noises:
Play in the Back-Alley Ball Court with any team. Go to the right end of the court 
and listen after turning off the commentary voices.