Fight as Oboro Bishamon
Select any mode. Highlight Bishamon at the character selection screen then hold [Start] and press any [Punch] or [Kick].
Fight as Shadow
Select arcade mode. Highlight "?" at the character selection screen then press [Start], [Start], [Start], [Start], [Start], followed by any [Punch] or [Kick].
Fight as Marionette
Select arcade mode. Highlight "?" at the character selection screen then press [Start], [Start], [Start], [Start], [Start], [Start], [Start], followed by any [Punch] or [Kick].
EX Options
Hold [L] and choose the "Option" selection at the main menu.