Dog mode
Press [Up]x2, [Down]x2, [Left], [Right],
[Left], [Right], [X] + [Circle] at the title
screen. The sound of a dog barking will confirm correct code entry.
The referee and linesman will be dogs when the next match starts.
All-Stars
Press [Right], [Up], [Down], [Left],
[X], [Square], [Triangle], [Left], [Right],
[Square], [Triangle] on controller two at the title
screen.