yup, reading this comment I couldn't stop thinking about Rumble in the Bronx. Police Story and a bunch of other more obscure HK movies are pretty dark as well.
Police Story 1-4 were all good fun. Not really for kids though. Plenty of bawdy jokes and innuendo.
edit: found it, new police story https://www.youtube.com/watch?v=DdEvxSxZAdE