Just unlocked a hilarious bonus in Dead or Alive: Dimensions that not many people may be aware of.  Zack has an alternate costume in the game inspired by the Koei Wii RPG Opoona.  True to form, Zack takes  it to the flamboyant extreme with a battlecry of "OPOONA!" at the start of battle.  A neat little thing to throw in there, though I'm not sure how many would get the reference.