There is some telling stuff about a rapidly changing Japanese society here, with veneers like "cop", "yakuza", "half-breed", "traitor" and "whore" not meaning a whole lot against Watari's hyperviolent nihilism. I appreciate the ruthlessness of the staging and editing, too: everyone simply wails on each other. That even a bit of redemption emerges in this excrement is masterful storytelling.
Fukasaku's rough style is too jerky and frantic, as if finding an annoying paradox between a modern and classic tone. The story, however, builds one's interest in its non-traditional fall from grace of its main character. Although this action choreography is often too shaky for clarity, the melodrama, charm, and humor gives it a cool vibe, akin to John Woo's later macho-reflection sentiments. Ending is tops, too.