To  enter  any of the  following  codes, start a game, and  after  the
 "Scouting Report" screen, do the following:

For Big Heads:

 Tap X rapidly until the tip-off.  Then pause the game, and unpause it,
 and the players have big heads.

For Small Players:

 Tap Z rapidly until the tip-off.  Then pause the game, and unpause it,
 and the players have shrunk.

For Shot Percentage:

 Press and hold L until the tip  off.  Pause the game, then unpause it,
 and every time you go up for a shot, you can see the percentage it has
 to go in.