From the Main Menu, press Up (x2), Right (x2), Y (x3) to unlock all teams and modes.
Manual Ball Control
Pause during a game, then press Up (x2), Down (x2), Left (x2), Right (x2), L (x3), R, L, R, L. hold L + R and press Left or Right to move the ball on the pitch.
Extra National Classic Matches
Complete all 4 games in Classic Matches to unlock four new National Classic Matches.