You must enter the options menu and select "Gameplay".
Hold D-pad Left + Left Analog-stick Right and press 
Start. The Codes selection will now be unlocked at the
options menu. 

Easy win:
Turn off fouling in the NBA rules section of the options 
menu. Use the intentional foul to make the other team drop
the ball, pick it up, score, and repeat as needed. 

Turn off fouls and goaltending then just keep blocking 
them and there will be no foul. 

Easy dunk:
To do the Vince Carter dunk on a break away, control 
Stackhouse, Bryant, Carter, Macgrady, or any other good 
player. Hold Turbo and go up for a dunk. You will make it
most of the time. 

Bonus teams: 
Enter MEGASTARS

Muhammad Ali & Michael Jackson: 
During an exhibition game, press Start and hold L. Go 
onto the Sixers and they should be on the starting lineup.

Airball: 
At the main menu choose "Street". Press White, then hold
L and press Y, Y. Press Start. 


by unknown