Ninjistu takes simple 'dirty' techiques, andd apply them in a brutal way. However, the applcation of such techniques are very technical, when compared to say, JKD.
In a real, adrennalin fueled situation, you lose many of your fine motor skills, so many Ninjitsu techniques would become obselite, wheras JKD takes the most simple and direct route to taking out an oponent.
Of course, we ALL know Nijas can fly, which kicks major ass!
Yea, Ninjitsu artists are too technical, to many movements. So, a JKD man with a few simple techniques should beat a ninja fairly easy.
Watch out for sneak attacks, a ninja might try to drop a smoke bomb and throw ninja stars from the tree that he's hiding in. They are trained assasins, they arent very well trained to go toe to toe... they would rather throw knives at your back or pin you with poison darts from thier blow guns 20 feet away. ha!
I've taken real ninjutsu. It's a cool art to learn but if it was something more practical or in my opinion "better" than JKD, I wouldn't still be with JKD now would I? I would say if you have a choice between Taekwondo, Karate, or Ninjutsu, take Ninjutsu. It's more practical than those arts. It also has tons of weapons so if you are a weapons buff, that is your art. I think BJJ and JKD are more practical. But for it's time, ninja were the JKD guys of their day so to speak:
Using whatever works in an emergency.
Ive taken a few Ninja classes. The instructor was kinda creepy, like he would look at me like he knew that I knew martial arts and he was ready for my attack. haha! I had a strange sense about that guy, it was odd. I'm a very good judge of character and he seemed to be too, so it was like we were trying to figure each other out, with out speaking. Its hard to explain. haha! I would admit, his senses were strong, like, he would be good at Chi sau or intercepting, but he didnt reveal too much of HIS techniques.
I took some classes in bujinkan ninjitsu. The major problems I had with it was the weapon focus and the stance. It is not a good art for a street fight because it assumes your opponent is using a sword or other types of weapons carried back in the day. Most of the techniques were counter attacks though, and I am not a big fan of waiting to be punched at. On the other hand its not as soft as aikido or judo because once you get an arm or a leg your striking at the armpit, neck, and face with either the side of the hand or a thub strike. Also the recent addition of the warriors creed is a nice touch.
THE WARRIOR CREED
By Robert L. Humphrey
Wherever I go,
everyone is a little bit safer because I am there.
Wherever I am,
anyone in need has a friend.
Whenever I return home,
everyone is happy I am there.
ha!