YMMV / Susanoo

• Big-Lipped Alligator Moment: The lighting horse spirit that appears to Sayuri while she is being raped. Although it is later shown again in a flashback of the moment, it is never explained nor mentioned and has no effect whatsoever in the plot.
• Creator-Driven Successor: This series was very clearly meant to be a Spiritual Successor to GoNagai's his most famous work, Devilman, from the demonic, Dark Fantasy themes, to the fact that Shingo and Uryu are very clear expies of Akira Fudo and Ryo Asuka.
• Narm: Shingo comparing Uryu to Hitler is not unaccurate, but his previous line about "...the reek of FASCISM!" on him can be a bit hard to take seriously.
• Too Bleak, Stopped Caring: The story gradually becomes much bleaker and nihilistic, not helped by the fact that the main bad guys get off scott-free through a vaguely executed Redemption Earns Life (very odd, considering most of the villains in Go Nagai's works tend to meet a very gruesome fate for their actions), along with the story not showing a real conclusion. All of that combined arguably makes it a tad too depressing for most readers and Nagai fans.
• Unintentionally Sympathetic: The fat, funny-looking yakuza Shingo beats up in Chapter 19. While he presumably deserves the assault he gets from Shingo for being a mobster and such, the only villainous act we get to see him commit is grabbing a woman's ass, just like the average Nagai male character. Otherwise, he is so sheepish and self-deprecative even before walking on Shingo that one cannot help but pity him when the latter scares the crap out of him and thrashes his attire, all while the guy can only stare while looking about to cry (and that without Shingo ever revealing his powers, which means this yakuza allowed himself to be kicked around by a random highschooler). He doesn't even resent Shingo after the thrashing, but is merely in awe of him for how cool he is! Even worse, intentionally or not, the whole act plays exactly like the awful instance in which Shigeru is bullied by Kashimura in Chapter 1, with the mobster and Shigeru having strikingly similar designs.
• Unintentionally Unsympathetic: Even though Uryu shows remorse in the end, he is responsible for all the bad things that had happened in the story, and doesn't receive any punishment for his actions, making it incredibly hard to see him in a redeeming light despite his epiphany. The fact he had the nerve to rub it in Shingo's face that he had been manipulating him the whole time just makes him all the more impossible to sympathize with.