Using the BlayzBloo art, Arc System Works created BlazBlue Mobile Battle. It looks like a fighting game, but BlazBlue Mobile Battle is really a social game. Players can fight each other and call friends for support while exploring Kagutuchi port.
The game uses a free to play, but you have to pay for items model that many social games use. BlazBlue Mobile Battle is made for Mobage-town, the same service Atlus picked for Persona 3 Social.