Here are some cheats and tips for the game All Star Tennis ’99.
Big head and feet:
Hold L1 + L2 + R1 + R2 during game play.
Change crowd’s sound:
Enable “Big head and feet” mode. Then hold L1 + L2 + R1 + R2 during game
play to speed up or slow down the crowd sound. To stop the crowd sounds,
pause game play, then resume.