Part 1: Muscular Man fights other Muscular man who's a vampire
Part 2: Muscular Grandson of Muscular Man fights Muscular Aztec Gods
Part 3: Grandson of Part 2 Muscular Man fights Muscular Vampire Man from Part 1
Part 4: Muscular high school students fight maniacs.
Part 5: Son of Muscular Vampire Man from part 1 is on a quest to become the best Mafia boss like no one ever was
Part 6: Sexy Daughter of Grandson of Part 2 Muscular man fights Fashion Designer Priest, who is Part 1's Muscular Vampire Man's favorite servant.
Part 7: Paraplegic Horse Jockey fights the President of the USA
Part 8: Not caught up so I can't help here
I think someone once talked about it and it was basically something like he was more influenced by stuff like Fist of the North Star and it showed in his work, but as he continued making art, his style changed as well and became more unique, dood.