So I've been scrounging around for any and all news about DOA 5 and apparently there is this little bit of news coming out of TGS:
At TGS, it was stated that these "rare" costumes - as they call them - are unlocked by clearing the unlockable "Legend" difficulty (the highest unlockable difficulty) in either Time Attack or Arcade (can't remember). What's more, the opponents are random, and you must defeat the opponent when they have this "rare" costume on during gameplay to unlock it. The chances of encountering them are at least 30%.
So, if you wanna see the really skimpy bikini's they aren't DLC you have to actually work your ass off for them:
- Must be on Legend the 7th and hardest difficulty setting
- Must play Arcade or Time Attack with 2 round matches
- You have a 30% chance of encountering an enemy wearing a "Rare" costume
This seems a interesting route and similar thing to what Mortal Kombat did locking Mlieena's skimpy outfit behind completing the challenge tower. Things like this is what get me excited about the game not so much for the oogling at the bikinis but the fact that they packed all sorts of little things like this in the game to give you things to do.
You can see one of the (I think) developers try this with Ayane in this video here as well as a few screenshots of one costumes: