This is a lean and mean 1970s yakuza exploitation picture that plays with a lot of genre tropes – rival groups, old ways versus young guns, etc. – all capped off by a deeply fatalistic streak. And mannequins!
A cinematic hero is only as good as the opposing villain. The films that brought us Skywalker-Vader, Creed-Balboa, and Matrix-Bennett are all examples of how contrasting characteristics bring balance to the contentious relationships between protagonists and antagonists. The characters headlining Kinji Fukasaku’s 1968 crime film BLACK LIZARD may or may not have chairs at the same table as the aforementioned duos, but they are definitely in the same restaurant.