This is how it goes:Ikaruga has been anounced for the PS2 too,so i think their just bringin it out for the DC fans that want it (in a limited number of games printed),and the PS2 Version is supposed to bring in the cash..like Sega did it with Space Channel 5 Vol. 2...
It will have a 2 Player mode.Thae arcade has one,the home version has one 🙂