I finished this last night...

It's an old 4 part OVA from 1990-1992, based on a manga of course. Mad Bull 34 has got to be one of the most chauvinistic anime series I've ever seen, only beat by the likes of say Urotsukidoji. (Pretty much every female character in the show eventually has their breasts shown, like it or not.) If you can get past that aspect of it, the story is fairly entertaining focusing on an insane cop and his straight laced partner. Mad Bull himself makes Dirty Harry look reserved seriously. I enjoyed the first two OVAs quite a bit, but the second two felt like the budget got neutered and the writing became too serious... losing the high comedic edge the prior episodes had. While I enjoyed going back in time and watching something I'd forgotten about, I can't recommend this series to anyone unless they truly enjoy raunchy lowbrow overly violent cinema. I mean, at one point Mad Bull pulls his pants down and has grenades tied to his pubes. Depending on how you feel about that, will tell you everything you need to know about this show.