International Superstar Soccer Pro '98 (PlayStation)
CheatingDome.com
CLASSIC ALL STARS (only for Japanse version)
At the main menu, the cursor must be at Exhibition (highlight).
Code
Effect
Up, Up, Down, Down, Left, Right, Left, Right, X, Circle
CLASSIC ALL STARS team which U can select by holding L1+R1 then pressing Circle inside 'Team Select screen'.
World All Stars Team
Highlight Exhibition and press Up, Up, Down, Down, Left, Right, Left, Right, Circle, X, then highlight Germany at the Team Select screen and press R1 + L1 + X.