- Awesome Music: The theme from the first OVA.
- Complete Monster: The Slum King, the most powerful warlord of the Kanto region, maintains his power through brutal murder and violent conquest where nobody is spared if they resist. He allows rape, murder and looting, and when someone really annoys him, he'll simply subject them to Cold-Blooded Torture. Perhaps the worst thing he has done is the creation of "Dog-People", which means cutting off all the limbs of a victim and making them crawl on peg-leg stubs while he keeps them as a Sex Slave.
- Darkness-Induced Audience Apathy: Being at least 10 times more brutal, graphic and crapsacky than Fist of the North Star with a (at first) apathetic and sadistic main character, it's pretty hard to go through this series for some.
- Harsher in Hindsight: The world went to crap following a major natural disaster. Cool! Did we mention that the disaster took place on September 11th, 197-? Oh...
- ...or that the natural disaster was a massive earthquake that completely demolishes Japan.
- Narm: The excessive swearing in the English dub.
Lazer: Goddamit! Where the hell is Jack, the fuckin' chicken shit! Fuckin' fuckin shit, fuckin' shit!
- Parody: Guess who the Marvel Pirates in Shin Violence Jack are based on? Come on, guess!
- What Do You Mean, It's for Kids?: This series was originally a Shounen series, of all things. Eventually though, enough people complained to get it shifted to a Seinen magazine.