You know, I like the idea of this one quite a bit. I wouldn't mind seeing a female versus female follow up against a female enemy ninja or maybe even a corseted European noblewoman on a 'Black Ship' where you try to fight with blades (lose clothing), maybe seduce the other as you struggle, and then, Kaiju tentacles ravage the loser of the fight (this is Japan after all) with the famous Hokusai octopus painting in the background. Either way, ninjas are a fun concept