At the main screen, choose Team Management, then click on Customize. Click on the
name of a player and type these codes. Press enter after inputting, then click again and
type another code:

Zico            Enable 1982 Classic Match 
Hurst           Enable '82,'74,'70,'66 Classic Match 
Kenny           Flaming Ball 
Gabo            Big heads 
Kyle            Skeleton players 
Cartman         Take a dive 
Gonzo           Hot potato 
Mr Hat          Crazy Ball 
Powder          Silly Moves 
Neila           Alien Mode

Press 'back' to exit without actually changing the players' names. Now press Scroll
Lock to open the cheat menu.