Big Head Mode:
At the code screen type in heliumbrain and you should enable giant heads.
Enable Special Teams:
If you type in vc at the code screen then you will enable the special teams.
Type in what am I saying at the code screen to enable crazy commentary.
Enter "betheball" with no spaces and no caps in the code menu.
Unlock Wang Zhizhi of the Dallas Mavericks:
From the main menu, go to customize, teams, lineups, set active players, then you can substitute any Mavericks player for Wang.
Thanks to Revolution readers Bogs Dizon, Brian Smith and Jon Miller!