What is Ninja and How to be a Ninja

Wikipedia says; Ninja is a person specially trained in a variety of unorthodox arts of war. I have an excerpt from Wikipedia below.

How to be a Ninja?
I got a nice video from YouTube, which can tell you how to be a Ninja. With nice fights!!!.

In fact this looks funny and entertaining, and worth watching. You can very well share this video with your friends, if you like it very much.

Also read: Great car driving skills demonstration video