Um...none? Team Ninja doesn't exactly pull their punches with "sex selling" in stuff like the DOA series, and that's even for both males and females (although the females are certainly more prominent), and NG is quite a bit more brutal than that series and it STILL doesn't really escape it.
If you want to drool over DOA female jailbait all day, go pick up DOA Xtreme Volleyball 2. I'm sure you'll have a blast. Just leave NG out of it.
"We're not gang members. We're not criminals. We're just dudes playing video games." ~ Maximilian