Australia's notorious for its stringent treatment of videogames. Previously, any game rated higher than M15+ by the Australian Classification Board would get the boot from the country, forcing Australian gamers to find alternative avenues to get their hands on mature-rated games. There was controversy over Bethesda's Fallout 3, as the country originally banned the game for encouraging drug use, forcing the developers to change morphine to stimpaks.
Back in June 2012, the Australian Parliament passed legislation allowing R18+ games to reach the country's shores. However, the legislation was only recently enacted after New Years' Day, and only in select parts of the nation, as some territories have yet to approve it. Ironically enough, the first R18+ game approved by the Classification Board for the country was Ninja Gaiden III: Razor's Edge, which is published by kid-friendly Nintendo.
According to Classification Board director Lesley O'Brien, Razor's Edge earned the R18+ rating for "violence that is high in impact because of its frequency, high definition graphics, and emphasis on blood effects."
Ninja Gaiden III: Razor's Edge has already launched in the U.S. and Japan as Wii U launch titles and just launched in Europe today. The game's Australian release date is still to be determined.