I believe to unlock costumes you just have to play through any difficulty you haven't already with that character in Time Attack, Arcade, or Survival.
Wait, what? You mean stuff unlocks regardless of difficulty (and if its been done before)?The fastest way to unlock costumes is to just repeat difficulty of choice in tag mode with any character missing costumes.
Yes I have all of these on PS3Is the new music from DOA1 and the remixes for Hayabusa, Kasumi and Ayane available in the PS3/360 version?
Wait, what? You mean stuff unlocks regardless of difficulty (and if its been done before)?