Fight as Duku or Shorko: Highlight the following fighters at the character selection
screen for three seconds before moving to the next fighter: Billy,
Marian, Chung Fu, Jimmy. The word "Bingo" will confirm
correct code entry. Duku or Shorko may now be selected as a fighter.
Opponent select: Select one player mode, enter the options screen and
change all options to a different value. Then, change all the
options back to their original settings. An opponent will already
have been selected by the CPU on the character selection screen.
Select a character, then move the pointer to select your opponent.
