Perfect PlayersGo to player edit and go to someone from another team. Take all their skills down to 35 and when you are on the + side, go to your team and make any player perfect.
Increase Team BankrollGo to the team edit screen and press Square, X, Square, L2, L1. Once entered, you can highlight the money option and change the amount.
Unlimited Player AttributesAt the Player Edit screen, higlight any one of the attributes and press L1, L2, X, Square, X.
Control Ball Physics (PAL Version)At the Team Edit screen, press Square, X, Square, L2, L1.
Harder KicksAt the Team Selection screen, press R1, L1, Down, Up, Left.