The ESRB has rated God of War: Ghost of Sparta Mature, noting it features "Blood and Gore, Intense Violence, Nudity, Sexual Content".
Commenting specifically on the nudity and sexual content, the ESRB rating states: "The game also contains a sex mini-game in which players may lead topless women into a bedroom. Actual sex is never depicted; the camera pans out to the foot of a shaking bed. As players respond to on-screen prompts with button presses, loud moaning sounds can be heard."
Some nudity and a sex mini-game is commonplace for a God of War title, so it comes as no surprise to find one in the franchise's second appearance on PSP.
God of War: Ghost of Sparta is scheduled for release on November 5.