An awesome kung fu comedy with ninjas and other shits.
As a master sends his student to kill an evil ninja, this student fails, and search for a replacement that can kill his enemy. The chosen ones are two boys that had a normal life till then. Those two young boys are trained by the master to fight against the evil ninja. As they leave master's temple they have to fight with the evil ninja's girlfriend (lol).
(tired to continue this damn description?!)
This video is pretty popular on YouTube, uploaded by Nigahiga, the 1st most subscribed ever.