Ninjas are very dangerous. That seams to be the only thing that American & Japanese movies seam to agree on.

While the the American movies ninjas a thought to be marshall artists & such, the Japanese movies play on the magicla parts of ninjutsu. Yes, there is some thing called "ninja magic" the ninjas master. This however is some thing we don't see in the 3 ninjas movies, though it is in the "American ninja" movies.

More to come...