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.

The Sega RingWide and Windows port of Melty Blood Actress Again, originally for the PS2 ... Earth), duo characters who were without one (Neco & Mech and Kohaku & Mech), and Riesbyfe Stridberg ...