We hope you weren't holding your breath for an Xbox 360 port of Ninja Gaiden Sigma. Team Ninja's Tomonobu Itagaki has confirmed that the team has no plans to port the PS3 title. Of course, Xbox 360 owners can play both Ninja Gaiden and Ninja Gaiden Black, the games on which Sigma is based, but it's somewhat disheartening to know that 360 owners won't get a taste of Sigma's additions. According to Itagaki, Sigma was designed for Playstation followers who never had a chance to experience the game on the original Xbox. Not to worry though, as he assures the world that Team Ninja is "taking new challenges" on the Xbox 360. Here's hoping that these challenges are related to an actual Ninja Gaiden sequel and not the next generation of breast physics.