I chalked up a 10 for this movie, because in truth it is one of the most entertaining films I have ever seen. Looks like it was shot on some grainy 16mil film on a desert island off the coast of Japan.
The main plot revolves around a group of "blood thirsty Kung-fu maniacs" (as quoted from the VHS box)who are trying to "take over the world". Although that is never mentioned in the movie. Neither is anything mentioned about a golden monkey. In fact, after you see it you'll realize it should have been called Claw of the Red Crab instead.
The bad guys are looking for a "secret manual" which they were using improperly I suspect, because some old guy who seems like he used to be in kahoots with them stole it and burned it. The movie then shows the main character getting his a**e whooped several times in a row for about 35 minutes. Then he learns the secret of the crab style, or something, and kicks everyone else's a**e.
Look for the Peter Gunn theme to play in one of the fighting scenes (when the main character fights the fat dude who drinks a lot).
Great movie if you want to kick back and not take it seriously