I remember back when I would spend far too much time at my old LGS in St. Louis, there was one other regular who was taking "ninja classes." I don't know if he actually did go to them or not, or what he was learning while there. I just know he was the envy of some of the other kids there. Well, those other kids could now have their own ninja aspirations in RPG form with Ninja Crusade 2nd edition, up on Kickstarter now.
Create your own ninja as one of the 10 different clans and send them on missions against The Empire (who is looking to wipe out all ninjas), other ninjas (who may not be playing nice), or go out into the world in search of adventure and excitement (and other training opportunities). The game uses a brand-new game system that Third Eye Games has called the Chakra System. It's meant to give you fast-paced martial arts fights like you'd see in kung-fu movies or anime.
The campaign is a bit over 1/3 funded with still 29 days left to go.