Cheat List
All International teams and cups: Hold TRIANGLE and enter SQUARE, X, X,CIRCLE, TRIANGLE, TRIANGLE at the game mode screen.
All stadiums from every league: Hold SQUARE and enter TRIANGLE, TRIANGLE, TRIANGLE, CIRCLE, CIRCLE, L TRIGGER.
Argentina league: Hold L TRIGGER and enter SQUARE, CIRCLE, TRIANGLE
Complete Challenge mode: Hold L TRIGGER and enter SQUARE, CIRCLE, SQUARE, X, CIRCLE

Unlockable: Custom Challenge
Complete all the challenges in challenge mode.