!!The comics:
* EnsembleDarkhorse: Karl Ruprecht Kroenen, Kate Corrigan.
* HolyShitQuotient: The vision of the apocalypse in ''King of Fear'', not to mention [[spoiler:Hellboy paying back the Baba Yaga... with his *own* eye]].
* WhatDoYouMeanItWasntMadeOnDrugs: Read the "Our Angels Are Different" entry.

!!The films:
* DracoInLeatherPants: Prince Nuada, [[WhiteHairedPrettyBoy naturally enough]] for an expy of [[ElricOfMelnibone Elric]].
* EnsembleDarkhorse: Kroenen
* EvenBetterSequel: Despite diverging even more from the source material, ''The Golden Army'' is liked just as much as, if not more so, than the first film.
* FridgeBrilliance: Nuada's fighting style is mostly based on speed and agility, doing all kinds of elaborate maneuvers to land hits on his opponent without being hit back. And he shares a magical link with his twin sister that means that everything that physically happens to him also happens to her and vice/versa. It stands to reason that he developed his fighting style in order to keep his sister from getting hurt along with him, supported by the first fight scene where he gets hit in the face and then turns to Nuala, clearly horrified as they both start bleeding.
* FridgeLogic: The second movie in particular has {{Plot Hole}}s you could drive a garbage truck through. See [[{{Headscratchers/Hellboy}} the Headscratchers page]] for a complete list.
* HoYay: It says something about the writers (or maybe the actors) that the most romantic scene in the either of the films is two dudes getting drunk and singing "Can't Smile Without You" to each other.
** Most romantic? Someone missed "[[CrowningMomentOfHeartwarming For her, I'll cross over. And then you'll be sorry.]]"
* JerkassWoobie: Nuada.
* PeripheryDemographic: The first film received a good review from [[http://www.pluggedin.com/videos/2004/Q1/Hellboy.aspx Focus on the Family]], of all people.
* SequelDecay: Humanity goes from being heroic, productive, and cautiously positive towards ( still loosely secret ) Hellboy, to being at best useless and in the way. The biggest reason Nuada has fans is because its hard to disagree with him about humanity, as far as the sequel is concerned.
* TearJerker: Nuala's sacrifice, particularly because it makes Abe of all people shed a tear.
* UglyCute: "[[http://www.youtube.com/watch?v=CxVPrrNZntI I'm not a baby]], [[CrowningMomentOfFunny I'm a tumour]]."
* VisualEffectsOfAwesome: And relatively small budgets.

!!The animated films:
* WhatDoYouMeanItsNotForKids: The animated films are in no way child-friendly, and in some ways are DarkerAndEdgier than even the live-action films.

!!The video games:
* TheProblemWithLicensedGames: Both Hellboy games had outdated graphics and repetitive gameplay, and the first one was full of bugs. Although ''The Science of Evil'' was supervised by Mignola and Del Toro, it didn't make up for the programming shortcomings.
----