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.