Tadashi Yamashita who is the henchman carrying the sword for protecting Mr. Lee, would go on to play a ninja in The Octagon starring Chuck Norris, would would be released in 1980, months after the release of this film and American Ninja, where he was the deadly Black Star Ninja.
As the closing credits are printed out, Christipher Joy's name is misspelled as "Christipher Joy."
There are two versions of this film. One version that was available on the MGM digital cable channel which only runs 90 Minutes and missing eleven minutes. The uncut version which was just released by Kino Lorber is the complete uncut version that restores alot of scenes including Ed Parker killing both of Mr. Lee's henchmen, and a scene revealing that The Cowboy was still alive after Mailei double crossed him and shot him amongst the few scenes that were restored from the cut version.