No, these are brand new costumes. The ones in-game, you buy with Fight money which can only be earned by playing the game.
Thanks.
I assume you aren't referring to the metallic costumes?
"hundreds" here means that you can use the same baseball cap for all characters, so that's already 35 costumes.
That can't be right. I remember seeing a tonne of customisation options so maybe a baseball cap counts as 1...
God, I wish they'd be clearer when they're doing this dlc and preorder exclusive bullshit on day 1.