First Ninja Gaiden Sigma 2 DLC released, revealing | Engadget
Ninja Gaiden Sigma 2 DLC costume pack on the way – Destructoid
Team Ninja Gaiden Costume DLC by MomijiHayabusa on DeviantArt
Ryu Collector's Edition Costume Concept Art - Ninja Gaiden Sigma 2 Art Gallery | Ninja gaiden, Ninja art, Ninja
Twitter 上的 Random task:"@chivas135 @DOATEC_OFFICIAL In Ninja Gaiden Sigma 2 Plus Rachel's red fiend outfit had the black bodysuit. It's likely they only bothered making one version of the suit, because laziness.
Costumes | Ninja Gaiden Wiki | Fandom
Ninja Gaiden Sigma 2 costume blow-out « Video Games Daily