Hmmm...
There are different principles of ninjitsu, and different methods of what they do... most of what I learned was palm strikes to the nose and temple, weapons like Sai and nunchuku etc, and punches to the ribcage, as well as punching trees and moulding the knuckles, didn't do much throwing, and certainly no kicking haha, hands are the fastest weapon, although I rekon knowing how to kick someone in the head would be alrite haha
On top of that, theres a few more quirky things to ninjitsu
-Dave