All-Star teams
Press [Start], [A], [Y], [Up], [Right], [B], [A], [Down] at the arcade mode menu.
Silicon Dream teams
Press [Y], [A], [B]x2, [A], [Down], [A], [B]x2, [A], [Down], [Up] at the arcade mode menu.
Unlock stadiums 1, 2, 5, and 11
Press [B], [Up], [Y], [Left], [A], [Right], [Down] at the arcade mode menu.
Unlock stadiums 3, 7, 10, and 15
Press [B], [A], [Left]x2, [Start], [B], [A], [Left]x2, [Start] at the arcade mode menu.
Unlock stadiums 8, 13, and 16
Press [B], [A], [Right], [Start], [B], [A], [Right], [Start] at the arcade mode menu.
Small players
Press [Down], [Up], [Left]x2, [A], [Right], [Down], [Start] at the arcade mode menu.