シン・ハムードさんのイラストまとめ

A crossover art with Osamu Tezuka characters by Go Nagai

The Mazinsaga story is deeper than this and has a new power system that is different from the rest of the Mazinger stories, especially that Mazinger here is a mask worn by Koji, and Mazinger forms as a shield around his body, not a giant robot.

God Mazinger: This is the only Mazinger story whose characters were different, here the protagonist named Yamato, who carries a supernatural power, he and his friends are dragged during a school trip to a parallel world similar to the European dark ages.

These four stories share the same elements and the same characters (except for God Mazinger), but the events of the story will be completely different. Unfortunately, none of these manga has got an anime adaptation.

and his gundam is called Devil Gundam.
Three things came together I don't think it's a coincidence.

If anyone is interested, there is an art book volume on Mangadex website contains Go Nagai's art from his most notable works.
The volume called: Kenran Goga

The 90s

You thought this is Fist of the north star, but it was KARATE APOCALYPSE.
I mean yes this is a rip-off

Captain Harlock is the true king of the pirates

Unlike the original story of Mazinger Z when Koji became a god to help humanity, on Mazinger zero manga Koji will become A DEMON GOD and mazinger will be very monsterous!!