Rodman Quick Change-You can change Dennis Rodman's hair color by pressing the pass button when you select your team (and have chosen Dennis Rodman).

Baby Mode-At the "Tonight's Matchup" screen, enter 025 using the yellow "A," "Bottom C," and "Right C" buttons. This will activate Baby Mode. At the tonights matchup screen type in these codes.
"111" - Tournament mode
"120" - Quick passing
"284" - Max speed "709" - Max steal Big heads -- Hold up and push turbo and pass simultaneously

Big Heads-At the match-up screen, hold up on the joystick and push turbo and pass simultaneously.

Hidden Players-At the Match Up screen, use the A, bottom C and right C buttons to input these numbers. Hidden Players:
Scottie Pippen - Enter name; PIPPEN and the PIN; 0000
Dennis Rodman - Enter name; RODMAN and the PIN; 0000
Shawn Kemp - Enter name; KEMP and the PIN; 0000
Grant Hill - Enter name; GHILL and the PIN; 0000
Anfernee 'Penny' Hardaway - Enter name; AHRDWY and the PIN; 0000
Mortal Kombat Editors - Enter name; MORTAL or KOMBAT and the PIN; 0004
More Editors - Enter name; MUNDAY and the PIN; 5432
Even more Editors - Enter name; MARIUS and the PIN; 1005

Match-Up Codes-At the "Tonight's Matchup" screen, enter 273 using the yellow "A", "Bottom C", and "Right C" buttons. This will activate Stealth Turbo mode in which, in a two-player game, other players can't see how much turbo their oppenent has left. Here are some more:
616 will increase the blocking rating to max for both of your players
937 will activate legal goal-tends
390 is the code for no pushing
048 is for no background music
461 is unlimited turbo
552 is the hyper-speed code
Max Power - 802
No Drift - Hold Joystick Down and press shoot then turbo
ABA Mode - Hold Joystick Right and press shoot, turbo, pass

Rooftop Jam-To get to play on the rooftop of an apartment building, go the match-up screen and hold the joystick left and push the turbo (A) button three times really quickly.