Gungrave, HeatGuy J Recommendations
When i first started Heat Guy J i immediately thought of my friend who really likes Gungrave. I thought he would really enjoy Heat Guy. Heat guy deals with crime and cops, which is kinda similar to Gungrave, but its the action, gun-play, and sci-fi elements that feel the same. Either way, you'll enjoy heat guy and gungrave for the action. Also the dubs are pretty good in heat guy.
Both explore themes of close friendship and betrayal. Both involve mafia and police; both have sci-fi elements. Both are serious realistic dramas with introspection and great character development, but Gungrave is much more tragic.
In both series, there is a lot of action, drama, and violence. There is a theme of friendship and betrayal present in both titles.
Both series also deals with civil conflicts that involves police and bits of science fiction. Both series also involves some tragedy but at the same time also has some hope.
Both series are rare gems and are worth a shot.