Ninja Gaiden Sigma [SEP] publisher
's resolution.
Other versions "Ninja Gaiden Sigma".
In 2006, Tecmo and Sony announced the development of "Ninja Gaiden Sigma" for the PS3. Eidos obtained the European publishing rights for this game. Itagaki had no direct role in "Sigma" and judged it a flawed game, although he acknowledged that "Sigma" gave PlayStation owners a taste of "Ninja Gaiden". A version for PlayStation Vita, "Ninja Gaiden Sigma Plus", was released in North America and Europe on February 22, 2012.
Ninja Gaiden Sigma 2
Ninja Gaiden Sigma 2, stylized as Ninja Gaiden Σ2, is an enhanced port of the 2008 Xbox 360 video game "Ninja Gaiden II", and developed by Team Ninja exclusively for the PlayStation 3 in 2009. It includes the entirety of the original story mode as well as additional enhancements made to improve the game, along with updated textures and a 720p resolution. The game expands on "Ninja Gaiden II" in the same way "Ninja Gaiden Sigma" expanded on the original "Ninja Gaiden