Today it was announced that the Wii U will be the first gaming console in Japan that launches an AO (Adults Only) rated title, the title in question; Ninja Gaiden 3: Razor’s Edge. In Japan, AO titles are referred to as CERO Z. The reasons being are fairly obvious: violence, gore, and suggestive themes. Though these are things that we often run across in M rated titles, so the question is; what makes Ninja Gaiden different from the rest? Here is my theory, the PS3 and 360 are consoles that are mainly targeted at the general audience for gamers, young adults and older. Though the Wii U has promise of being along the lines of its competition, the fact of the matter is that this is still a Nintendo console.  Nintendo is typically known for catering to all ages, young and old. Nintendo wanted it to be clear that Ninja Gaiden 3: Razor’s Edge is strictly for adults, and meant to be played only by adults, with no confusion. Yes, Nintendo has had M rated games in the past, but let it be known that said games are not pushed like others.  Not to mention the scarcity and availability of M rated Nintendo titles being brought to America. Plus this an AO rating we are talking about. It could be something else completely, but I feel this could be a reason.