Ninja Gaiden Sigma Plus - PlayStation Vita Using the new and exciting hardware possibilities that PlayStation Vita offers, players can tap the rear touch pad to strengthen their Ninpo, move the PlayStation Vita system around to aim the bow, and much, much more. The new Hero play style allows players new to the series to overcome the toughest of trials. With auto-support functions and unlimited Ninpo in tight situations, this play style will allow any player to feel like a Hero! Tons of missions that will challenge even the toughest ninja. Players can hone their combat prowess in the largest selection of missions Ninja Gaiden has yet to offer!