Big Heads

To get "big head" players in Perfect Striker, just enter the following code 
at the title screen: Top C, Top C, Bottom C, Bottom C, Left C, Right C, Left 
C, Right C, B, A, and then hold down Z and press Start. Look familiar? 
Yep, it's the old Konami code.



Hidden Teams

Perfect Striker contains two additional, hidden teams. There are two 
ways that you can get these two new teams:

Play through and beat the League Mode, or Enter the following code 
(at the title screen):
Up, L, Up, L, Down, L, Down, L, Left, R, Right, R, 
Left, R, Right, R, B, A, and then hold down Z and press Start.