Characters...
	Fight Ryougi Shiki in Arcade M...
	Play as Archetype: Earth in he...

You can unlock one of the following characters.

Character	How to unlock
Archetype Earth Arcueid	Beat Arcade Mode with all characters.
Mecha Hisui w/ Kohaku	Beat Arcade Mode with Neco Arc.
Neco Arc Chaos	Beat Arcade Mode with Hisui and White Len.
Neco Arc w/ Mecha Hisui	Beat Arcade Mode with Miyako.
Tohno Akiha Uniform Version	Beat Arcade Mode with Tohno Akiha and Akiha Vermillion.

To fight Ryougi Shiki, win at least four matches before the eighth with Perfects and without losing a match. She'll fight you after the seventh match.

First you need to play as Archetype: Earth in her Eclipse Style. Then select her again by using the random character option. When you finally select her she will be in her Crescent Moon Style. Archetype: Earth in her Crescent Moon Style appears to be a phototype or a beta character.