As far as I know, there is no special rule that says ninja are supposed to wear a certain uniform. But after watching this video on youtube, I can’t help but think that there should be such a rule. Because this, folks, is just wrong.
But at the same time, it’s just too awesome. Pay particular attention to the moments in the video where his ponytail gets in the way, and he has to briefly interrupt his routing to brush it back over his shoulder. Equally delicious are the moments where he has to pull up his pants to keep his ninja belly from sticking out.