Dead or Alive Xtreme Beach Volleyball

I once read in Electronic Gaming Monthly that there was a way to unlock a topless mode

However, it was quite a lengthy guide they gave, and EGM is known for giving fake tips/tricks(For example, the April Fools joke about unlocking sonic/tails in brawl), so it's likely to also be a fake

The only nudity within this game is the moonlight-silhouette of Christie when jumping into the ocean.
Otherwise, you do not get any nudity - you can see through the visor equipped by the girl if she wears a suit with transparency on it (ex. Lei Fang's Emu) but there are still stars over the naughy parts.

C-A