If you loved Cops vs. Thugs, try New Battles Without Honor and Humanity 1
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Kinji Fukasaku, and they both carry the raw mood tag, and they sit in Action / Crime / Drama territory. If that's the register that drew you to Cops vs. Thugs, the second film will land in a comparable space — through a different lens.
raw
What New Battles Without Honor and Humanity 1 is
You start in a prison cell as a disposable killer and suddenly the gang war erupts outside. Between the two warring bosses you’re just another piece to discard. Fukasaku frames this early yakuza flick as a prison boxing ring where every punch lands like a debt notice.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity