Press L1, L2, R1, R2 at the same time when you are in Option menu to unlock all costume, voice, cinematics, except those of Honoka's, Raidou's, and Naotora's
Thank you. I just did that earlier. Now all I have to do is redo the combo challenges and the command training.
The SW costumes are still corrupty I believe, especially Brad's... try not to play as the SW costumes on arcade or time attack >.>