Four bonus teams:
Select one player league mode. Pause game play and press B(2), C, B(2), C. A chime will confirm correct code entry. Press Down to select four new teams.

Sound test:
Enter league continue mode, select China as a team, enter KWGEN as a password, and press Start.

U.K. Pirates passwords:

AALOI
ONZAQ
UAKHM
HMLUI