While I know Jacky, I will be first going into training mode with him, and completing his combo training. Tag training as well, now that I have a team. After that, or before, playing online with friends. We are all getting it the same day. Can't wait to play it with them. When they aren't around, probably combo training mode. I plan on finishing it for every character. Not sure about unlocking things. I don't think there will be much to unlock. In the streams we've seen, it looks like every costume was there and ready to use. Unless they just had it there for people to preview, I think every character and costume will be unlocked from the start.