Ninja Gaiden II is the sequel to Ninja Gaiden Dragon Sword and was released worldwide on Xbox 360 in June, 2008. It was developed by Team Ninja and published by Microsoft Game Studios, marking the first time a Team Ninja developed game was not published by Tecmo. While sharing the same number as the Nintendo Entertainment System game Ninja Gaiden II: The Dark Sword of Chaos, it is not a conversion of that older title. The game has not been released in Germany, due to lack of a USK rating.