"Only 23 games have ever been rated Adults Only in the 13-year history of the Entertainment Software Rating Board, according to the board's site.

If Manhunt 2's AO rating sticks it will be the twenty-fourth title to receive such a rating and the first console title, not including the Hot Coffee edition of GTA San Andreas, to get such a distinction.

Other AO titles include Playboy the Mansion: Private Party, which received its rating due to nudity and strong sexual content; the director's..."