Def Jam: Fight for NY

100 Reward Points
At the main menu go to the options menu. Then go to the cheats menu and type in: DUCKETS. (Be sure to make all the letters in CAPS or else the code will not work).
(Thanks to sniper_wolf333@yahoo.com)

400 Reward Points
At the main menu go into "extras". Then go to cheats or codes and type in all of the following for 100 reward points each: CROOKLYN, THESOURCE, GETSTUFF, and NEWJACK. (Be sure to make all the letters in CAPS or else the code will not work).
(Thanks to sniper_wolf333@yahoo.com)