Tecmo Koei packed three bonus costumes with first print copies of Ninja Gaiden Sigma Plus 2. The Vita game includes a DLC code which can be redeemed for a set of heroine costumes.
Yeah, we know Ayane likes purple, but Rachel and Momoji too? Ninja Gaiden Sigma 2 Plus lets players use the heroines more often in tag mode and Ninja Race. You can see more screenshots of the new modes here.