Pachislot Ninja Gaiden (ＰＡＣＨＩＳＬＯＴ ＮＩＮＪＡ ＧＡＩＤＥＮ Pachislot Ninja Gaiden?) is a Pachislot game by NANASHOW, based on the Ninja Gaiden series which began distribution on February 2016. The game follows the chapter structure of Ninja Gaiden II and Ninja Gaiden Sigma 2.