When Playboy reviewed Wii title Onechanbara: Bikini Samurai Squad, it asked publisher D3 for this: Exclusive naked pics. And exclusive naked pics it got.
Above and below are images directly from D3 of the game's heroine Aya wearing her cowboy and boots, but not much else. At least she's got her swords. Very important! You can't kill zombies with boobs.
Bikini Samurai Squad [Playboy]