I have 4 accounts currently: ru, jp, eu and us PSN networks. as far as I know there is only japanese version of Ad Hoc party and I am using it... its a shame different versions of this game are not compatible but most of us have US version of it and its good all dlc are aviable for it for free! I began single player campaign to learn game mechanics and tracks... it is strange for me but I begin to love this game!