Atlus have readied a new update to Persona 4 Arena, the 2D fighter featuring the RPG franchise's sleuthing friends and foes, and issued a new video with two free downloadable fighters in Adachi and Marie.
If you've never played Shin Megami Tensei: Persona 4 (or the game's PlayStation Vita port, Persona 4 Golden) then you might want to skip this and check out that game's story first.
Atlus says that each character will be available within a week of the game's launch. The company also have a Teddie Bop Bag and Tarot Cards for those who skipped the original release and want to preorder.