I was writing a note in total disagreement, saying there has to be a cutoff somewhere, which I tought was "M." Sort of like adulthood--once you reach 18, anything goes, whether you're 18 or 80. I thought "M" was the same idea for video games.
But I am wrong.
The Entertainment Software Rating Board (http://www.esrb.org/), which rated the game "M," actually does have a category "AO" for "adults only," and I don't know why this rating wasn't chosen based on their criteria for an "AO" game. The difference in practical terms is negligible, as M is for 17+ and AO is for 18+.
FWIW I'd play this game if I had time... my PS2 has been collecting dust--saw dust, drywall dust, etc--while I work on my house. :)
"The Entertainment Software Rating Board (http://www.esrb.org/), which rated the game "M," actually does have a category "AO" for "adults only," and I don't know why this rating wasn't chosen based on their criteria for an "AO" game."
'AO' basically translates to "There's full frontal nudity and sex in this game." And as far as I know, only two games so far have that rating.