Giant Attack mode:
     Successfully  complete  arcade  mode.  Then highlight the "Arcade
Mode" option at the main menu, hold [Shield] and select "Confirm". The
character  selection  screen's  background  will  turn blue to confirm
correct code entry.
     Select   a  character  to  battle  a  giant  version  of  Shiki's
stepsister for a random number of rounds.

Giant Attack mode:
     Successfully  complete  arcade  mode.  Then highlight the "Arcade
Mode" option at the main menu, hold [Shield] and select "Confirm". The
character  selection  screen's  background  will  turn blue to confirm
correct  code  entry.  Select a character to battle a giant version of
Shiki's stepsister for a random number of rounds.

Alternate stage backgrounds:
     Do  not  use any continues while playing in arcade mode. You will
fight Aozaki Aoko after defeating Shiroi Len. Defeat her to unlock the
background that you fought her on in versus and training modes.

Fight as White Len and Aoko:
     Defeat  Aoko with all default characters and complete each of the
eight storylines in story mode.