Enter the following codes at the Codes screen in the Options menu:
Infinite Speed: CARDIOMAN
Unlock Chicago Skyline Court: WINDYCITY
No Trade Boundaries: GIMMETHAT
Simple Alley-oops: IGOTHOPS
Simple three-pointers: THREE4ALL
Unlock Tiny Players: SMALLSHOES
Unlock Volleyball: SPIKEIT
Unlock Xbox Ball: BACHMAN
Unlock Beach Ball: SANDINMYSHORTS
Play With Soccer Ball: HOOLIGAN
Play With ABA Ball: OLDSCHOOL
Play With WNBA Ball: GOTGAME
Unlock 8-Ball: GAMEOVER