Press Y, X, B, A, L, R at the options screen. The screen will flash red to confirm correct code entry. Fighters will now bleed when hit.
Special story mode:
Select a number from one through six on the music option screen. This value will correspond to the fighter order on the duel screen (1: Shaq, 3: Beast, 5: Memphis, 7: Rajah, 2: Kaori, 4: Sett, 6: Voodoo). Press Up, Down, B, Left, Right, B. The screen will flash purple to confirm correct code entry. Story mode may now be played with a character other than Shaq.
Fight Beast in story mode:
Walk down the stairs at the bottom right corner of the first island and press Start.
Defeat Voodoo in story mode, then return to ‘The Lost Jungle’ area and press Start.
Press Up, Right, B, Down, Left, B. The screen will flash yellow to confirm correct code entry. Enter the duel mode character selection screen that displays the background. Press X + B on controllers one and two. The picture in the center of the screen will disappear.