Start a game, pause it, select "Options", and enter one of the codes below.
You will hear a click. Exit the options menu, go back to Resume Game menu.
Press the "Square" button. You will get a secret options menu. Greyed-out
choices require another code to work. Use the Left/Right on the D-pad to
change the settings.
Invisible Walls: X, X, X, Triangle, Square, Square, Square, Triangle
Curve Ball: Triangle, Square, X, Triangle, X, X
Super Power: Triangle, Square, Triangle, Triangle, Triangle, Triangle, Triangle, Triangle, Triangle, Triangle
Super Goalie: Square, Square, Square, Square, Square, Triangle, Triangle, Triangle, Triangle, Triangle, Triangle
Super Offense: Square, Square, Square, Square, Square, Triangle, X
Super Defense: Triangle, Triangle, Triangle, Triangle, Triangle, X, Triangle
Shootout: Square, Triangle, Square, X, Square, Triangle
Stupid Team: Square, Triangle, X, Square, Triangle, X
Formal: Square, Triangle, X, Square, Triangle, Triangle, X, Triangle
Federation: Square, Triangle, X, Square, Triangle, Triangle, X, X
Dynamic Duo: Square, Triangle, X, Square, Triangle, Triangle, Triangle, Square
Default Color: Square, Triangle, X, Square, Triangle, Triangle, Triangle, X
Invisible: Square, Triangle, X, Square, Triangle, Triangle, X, Square
Oktoberfest: Square, Triangle, X, Square, Triangle, Triangle, Triangle, Triangle
Some of the codes require you to go back to the main menu and select OPTIONS
to see the new choices found at the bottom.
Sun/shadows trick:
Pull down the options screen and enter Instant Replay. Then, while holding
down R1, rotate the D-pad to change the shadow's directions.