Franco Nero on the billing is a sign of a top notch z-movie.
[video=youtube;c_sFGnW1Wmg]http://www.youtube.com/watch?v=c_sFGnW1Wmg[/video]
Also, I wish I could find that final scene from Enter the Ninja on YouTube with the "so Mr. Ninja, who will you kill next?" yokel.