During a recently livestream where Hamster announced a new batch of upcoming NeoGeo and arcade games for Switch, there was one mystery inclusion. However, it is a mystery no longer.
Arcade Archives Ninja Gaiden is now announced for Switch. A release date was not confirmed, but it should be within the next two months. Unlike the more well known NES game, Arcade Ninja Gaiden is a beat em up.
Source: Hamster