History Characters / SonicTheHedgehogModernEraAntagonists1

* DarkMessiah: Black Doom appears to be heavily based on corrupt religious figures. He claims to care deeply for his congregation, but throughout the game he's shown needlessly placing them in harm's way for the "greater good", he secretly plots to [[spoiler:[[ToServeMan quite literally]]]] leech off the people he [[FalseProphet promises to save]], [[spoiler:he helped sire Shadow, literally making him his father]], and his design resembles a Lovecraftian bishop. He even has the nerve to use the word "salvation" in the Last Story.

* HumansAreTheRealMonsters: Black Doom believes humans are a worthless race that will self-destruct in due time, and considers using them as food for the Black Arms an act of mercy. During multiple points of the story, if choosing his side, Black Doom will tempt Shadow with illusions and words, showing how terrible humankind is.

* {{Hypocrite}}: During the cutscene before the Heavy Dog boss, Black Doom disgustedly points out to Shadow that humans are willing to sacrifice their own for greed, even though he has no qualms about sacrificing his own army for personal gain and [[ToServeMan plans to use humanity as a food source]].

* KnightOfCerebus: One of the few ''Sonic'' villains to be played completely seriously. His invasion of Earth is essentially full-scale colonialism and he comes within a hairsbreadth of [[ToServeMan turning the human race into lunch]]. He also serves as a personal one to Shadow.

* TimeLimitBoss: [[spoiler:The final battle with him zig-zags this trope. As the fight between him and Shadow rages in the sky, Sonic and co. are slowly succumbing to the paralyzing nerve gas of the Black Comet. The longer the fight goes on, the more bleak it becomes for them. However, [[TakeYourTime you can take as long as you like and it won't affect the ending at all]]. The actual time limit is your ring count to maintain Shadow's super form.]]
* ToServeMan: Black Doom's ultimate goal. And he would have pulled it off if Shadow didn't turn out to be immune to his nerve gas and WeCanRuleTogether antics.

* ForTheEvulz: The only suggestible reason that he wants to completely destroy space and time, and the most likely reason he doesn't simply go back in time and get what he wants in a few seconds. If his methods are anything to go by, it's also an implicit reason he decides to leave Iblis to his own devices in Silver's future instead of merging with him there.

* EvilCounterpart: He's a malicious version of Shadow in numerous ways. Both he and Shadow were created to prevent untimely deaths, with Project Shadow being focused on curing disease, while Project Solaris was focused on removing victims of fate from the circumstances of their demise using time travel. Shadow even acted like Mephiles before the former's two heel-face turns pre- and post-amnesia. However, the biggest difference, as Shadow stated, is that Mephiles craves destruction. Shadow's psychotic tendencies were learned from trauma and further programmed into him by Professor Robotnik, but he eventually went back on them because he had a morality chain in Maria; Mephiles was axe-crazy from minute one through no fault of the scientists who made him and he had no morality chain to make him second-guess his actions. At its core, Mephiles is essentially [[ShadowArchetype a reflection of Shadow if the latter never had a shred of good inside to begin with.]]