Alternate Costume Colors
     Press the various Punch and Kick buttons while choosing a fighter
on the character selection screen.

Fight as Inoz
     Accumulate  over two hours of total game play. Then, hold L while
choosing Mamazo at the Character Selection screen.

Fight as Darkness
     Accumulate  over five hours of total game play. Darkness will now
be selectable at the Character Selection screen.

Extra Options
     Accumulate  over ten hours of total game play. An "Extra options"
selection will appear on the Options Menu.