History Main / AlienBlood

[[folder:Web Originals]]

* According to the {{PPC}}, MarySue characters bleed red or pink glittery blood, or in extreme cases, "only" glitter.

** Karkat's blood is a mutation -- bright red like human and carapace blood. This puts him completely outside (and beneath) the entire hemospectrum and has only been possessed by one other troll in history, his ancestor The Sufferer. As a result, Karkat opts for "blood anonymity" by typing in grey instead of his blood color as all the other trolls do.

* In the original version of ''VideoGame/TheLegendOfZeldaOcarinaOfTime'' (predominately copies of the game with a gold cartridge), Ganondorf coughed up regular ol' red blood after you defeated him. However, MoralGuardians protested that this was too graphic for an E-rated game, and Ganondorf's blood was changed to green for subsequent releases. Since then, even this trope began to be averted in the following games, with the exception of ''[[VideoGame/TheLegendOfZeldaTwilightPrincess Twilight Princess]]'' and ''[[VideoGame/TheLegendOfZeldaSkywardSword Skyward Sword]]'' (which were consequentially rated T and [=E10+=] respectively for "Animated Blood").

* In the original version of ''Videogame/TheLegendOfZeldaOcarinaOfTime'' (predominately copies of the game with a gold cartridge), Ganondorf coughed up regular ol' red blood after you defeated him. However, MoralGuardians protested that this was too graphic for an E-rated game, and Ganondorf's blood was changed to green for subsequent releases.

* In the ''[[WesternAnimation/{{Thundercats 2011}} ThunderCats (2011)]]'' episode "Ramlak Rising" the GiantSquid[=/=]ManEatingPlant HybridMonster the Ramlak is shown to have a strange blue ichor dripping from the severed ends of tentacles that Lion-O slices off when it first surfaces from the [[SandIsWater Sand Sea]] and attacks. When Lion-O strikes a mortal blow, its revealed that the monster's blood is, appropriately enough, ''water.''

* Most of the alien blood in ''WesternAnimation/SymbionicTitan'' is green.

* In ''{{Metal Gear Solid 4|Guns Of The Patriots}}'', SuperSoldier Raiden has white nanomachine-based blood, the potential symbolism of which is not lost to [[DepravedBisexual Vamp]].
** This is a reference to ''VisualNovel/{{Policenauts}}'', where the "Frozeners" also have white artificial blood, called "first-generation" blood, which is said to be simpler than the "third-generation" blood used on Home (Earth). It's also said to transport oxygen more efficiently than regular blood, making blood loss less of a threat.

* In the original version of ''Videogame/TheLegendOfZeldaOcarinaOfTime'' (predominately copies of the game with a gold cartridge), Ganondorf coughed up regular ol' red blood after you defeated him. However, MoralGuardians protested that this was too graphic for an E-rated game, and Ganondorf's blood was changed to green for subsequent releases. While this makes sense at first glance (Ganondorf, at least in his ''Ocarina of Time'' incarnation, does have rather green skin), it doesn't if you think about it for a while...Ganondorf is the only male Gerudo, and all the female Gerudos (Gerudoes?) you see in the game have peachish-tannish skin...and it wouldn't make a whole lot of sense for the males of a species to have a different color blood than the females, would it?
** Interestingly, in ''Majora's Mask'', the enemy Gerudos spray ''blue'' blood when you hit them. Hmm.
*** Must be [[BlueBlood royalty]], then.
* Orcs from ''VideoGame/{{Warcraft}}'' (even though they are native to a planet called 'Draenor') have very dark blood, which is why many of the more or less racist humans call them ''blackbloods''.
** Similarly, the blue skinned draenei have blue blood. That, and their unguligrade appearance has caused a few fans to compare them to the above mentioned [[TabletopGame/{{Warhammer 40000}} Warhammer 40k Tau]] (although people are even ''more'' likely to compare draenei to [[VideoGame/StarCraft Protoss]]).
** Demon blood seem to be fluorescent green (which is pretty much the trademark colour of fel energy).
*** Sufficiently powerful demons have [[LavaAddsAwesome lava instead of blood.]]

* Like all things ''VideoGame/DwarfFortress'', there are different colors of blood based on the creature that bled it.
** Which, like all things ''VideoGame/DwarfFortress'', can be modded to taste. Someone even made a ''Homestuck'' (below) troll mod covering the entire hemospectrum.

* ''KamenRiderBlade'' has the [[MonsterOfTheWeek Undead]], who bleed green. This serves as a ChekhovsGun as [[spoiler: one of the main characters is an Undead himself and another main character becomes an Undead in the finale, and they both bled this color.]]
** The gun goes off ''cross-series'', as in ''KamenRiderDecade'', [[spoiler: the BigBad of Ryuki's world turns out to be an undead]].

** Blood colors in ME also qualify for ShownTheirWork credit, as species with alternate colors of blood have skin and/or mucous membrane coloration to match (asari have various tones of blue or purple skin as well as lightly blue-tinged sclerae; krogan, who bleed orange, can exhibit red or yellow eyes; Garrus and several other light-colored turians have a faint purplish cast to their facial features).

* It took nineteen books [[spoiler: and a bad-luck-induced paper cut]] to find out that Aahz from ''MythAdventures'' has yellow-green blood.

[[/folder]]

* The alien human hybrids on ''Series/TheXFiles}'' bled green blood that could produce a deadly gas (to non-aliens) when exposed to the atmosphere, as did the aliens themselves. This got {{lampshaded}} in a heartbreakingly awesome way in "The Unnatural". Ironically, this means that Mulder could see an alien-human hybrid bleeding, and not know there was anything weird going on because he's red/green colorblind!

* Time Lords from ''Series/DoctorWho''(at least in the [[Franchise/DoctorWhoExpandedUniverse Expanded Universe]]) have blood that's a deep orange. It's sometimes described as basically red, but "orange-ish".

* In Anime/{{Interstella 5555}}, Shep's blood is Yellow.

* In [[Music/DaftPunk Interstella 5555]], Shep's blood is Yellow.

* The Kaiju from ''Film/PacificRim'' bleed blue when stabbed, slashed, gouged, plasma blasted, or otherwise maimed. Which happens a lot.

Of course, here on Earth, all vertebrates (with the exception of [[http://en.wikipedia.org/wiki/Prasinohaema certain lizards]] and [[http://en.wikipedia.org/wiki/Methemoglobinemia genetic conditions]]), the largest and most complex members of the animal kingdom, have red blood--the reason? Because all animals breathe oxygen. Red blood cells are red because they contain a protein chemical called hemoglobin, which is bright red in color. This is because hemoglobin contains iron, which is vital for transporting life-sustaining oxygen where it needs to go. There are other pigments like hemocyanin or chlorocurorin that come in such vibrant shades as pink, orange, blue, and green, but [[AwesomeButImpractical these are much less efficient at transporting oxygen than hemoglobin]] and thus only appear in invertebrates, which have smaller bodies and a better surface-area-to-volume ratio, and thus less need of efficient oxygen transport. Usually hand-waved by having different chemicals in their blood.

* The Mulians in ''RahXephon'' are HumanAliens with blue blood.

* In ''{{Claymore}}'', the shape shifting, human-eating ''yoma'' have purple blood. The titular half-yoma warriors have red blood, normally, unless they Awaken, permanently turning into their SuperpoweredEvilSide. From then on, they'll bleed purple.

* In the {{Hentai}} anime ''LaBlueGirl'', Shikima demons have blue blood; this is also the case of the heroine, Miko Mido (hence the title), since she is [[HalfHumanHybrid half-Shikima]].
* In ''DragonballZ'', Namekians like Piccolo and Nail bleed purple.

* ''Film/PacificRim'': the Kaiju bleed blue when stabbed, slashed, gouged, plasma blasted, or otherwise maimed. Which happens a lot.

* Vulcans in ''Franchise/StarTrek'' have green copper-based blood, not unlike Earth insects[[hottip:*:In reality, Cyanoglobin (the oxygen-carrying pigment that is the copper-blood equivalent of iron-based haemoglobin) does not carry oxygen very efficiently, which is why molluscs like squids and octopi tend to operate on a 'dart and rest' principle.]]. In the movies, Klingons have pink blood. Ironically, ''Film/{{Star Trek VI|The Undiscovered Country}}'', which introduced the Klingon Pepto-Bismol Blood, shows a Klingon bleeding red blood in a climactic scene - at least in the theatrical version. Video releases restored a scene cut from the theatrical release explaining this (the "Klingon" is really a human wearing a [[RubberForeheadAliens Rubber Forehead]]).
** To a limited extent, ''Franchise/StarTrek'' did [[ShownTheirWork Show Their Work]] in that Leonard Nimoy's make-up did tend towards a more greenish cast than everyone else's. It did take several tries, however, to get this to work the way they wanted when combined with the lighting and the other make-up, which occasionally had hilarious results--especially in early episodes of the show.

* The alien human hybrids on ''{{The X-Files}}'' bled green blood that could produce a deadly gas (to non-aliens) when exposed to the atmosphere, as did the aliens themselves. This got {{lampshaded}} in a heartbreakingly awesome way in "The Unnatural". Ironically, this means that Mulder could see an alien-human hybrid bleeding, and not know there was anything weird going on because he's red/green colorblind!

* In the TV series spin-off of ''{{V}}'' the distinctive reverberation of the Visitor's voices was dropped due to the expense of sound dubbing, and the Visitors were given cliché green blood instead. Some viewers missed the plot point about a human who'd cut his hand actually being a [[TheMole Visitor infiltrator]], as they lacked a colour television at the time.

* ''Series/DoctorWho'': Time Lords (at least in the [[Franchise/DoctorWhoExpandedUniverse Expanded Universe]]) have blood that's a deep orange. It's sometimes described as basically red, but "orange-ish".

** In the ''{{Halo}}'' universe, elites and jackals have purple blood, hunters orange, brutes and prophets red, grunts luminous blue, and drones whitish green. The Flood are a different story: they don't bleed ''just'' blood; Infection Forms will [[BodyHorror liquefy the internal organs of the host]], so in reality they're spilling out their entrails ''in liquid form''. Unless the "Grunt Birthday Party" skull is enabled, in which case headshots will cause the grunts to [[SillinessSwitch bleed confetti and cheering]].

* Similar to the Vulcan example above, a major plot point in ''[[StarOcean Star Ocean: First Departure]]'' is that Fellpool have copper-based blood - but everyone from that planet has properly pink skin (or tan, in the case of the Highlanders). The only outward difference from [[strike:humans]] Terrans is their tails and sometimes fangs.

* In ''{{Metal Gear Solid 4|Guns Of The Patriots}}'', SuperSoldier Raiden has white nanomachine-based blood, [[WhatDoYouMeanItsNotSymbolic the potential symbolism of which]] [[HoYay is not lost to]] [[DepravedBisexual Vamp]].

* Like in Middle-Earth, in [[{{Warcraft}} Azeroth]] orcs (even though they are native to a planet called 'Draenor') have very dark blood, which is why many of the more or less racist humans call them ''blackbloods''.
** Similarly, the blue skinned draenei have blue blood. That, and their unguligrade appearance has caused a few fans to compare them to the above mentioned [[TabletopGame/{{Warhammer 40000}} Warhammer 40k Tau]] (although people are even ''more'' likely to compare draenei to [[StarCraft Protoss]]).

*** Sufficiently powerful demons have [[RuleOfCool lava instead of blood.]]

* In ''Blood Omen: LegacyOfKain'' you play a vampire whose health bar is a blood bar, so NPC blood is ColorCodedForYourConvenience: Red blood restores your health, the blue blood of ghosts restores your mana, black blood lowers your health, and green blood poisons you.

* Discussed in ''CthulhuSavesTheWorld'': Umi asks the blood types of her allies, and Cthulhu answers he's got ink for blood. Similarly, Ember the demon dragon says to have acid for blood.

* The alien that attacked [[RedShirt Dykowski]] in ''SluggyFreelance'' has ''[[http://beta.sluggy.com/daily.php?date=971013 concentrated orange juice]]'' [[http://beta.sluggy.com/daily.php?date=971013 for blood.]] The bad part, according to the crewmember studying the creature, is that it's the ''homestyle kind''.

** Feferi's blood is literally [[PurpleIsPowerful royal purple]], making her heiress to the throne, because it physically grants her protection from the BrownNote of her EldritchAbomination guardian even at its [[ApocalypseHow highest level]].

[[folder: {{Web Original}}s]]

* An episode of ''MegasXLR'' featured a shapeshifting [[PlantAliens plant alien]]. Once Coop discovered its true nature, he formed one of the robot's limbs into a chainsaw and got to work. The scene of the chainsaw going into the creature while green goop flies out goes on for [[OverlyLongGag over thirty seconds]].
* [[{{Futurama}} Kif Kroker]] bleeds viscous green blood. It's tangy!

* ''InvaderZim'': A scene near the end of the episode "Lice" seems to show that Zim (and by extension, all Irkens) has green blood, as he's skinned and the tissue underneath is green. Of course, considering that Zim's ''skin'' is green, it makes sense.

* Most of the alien blood in ''SymbionicTitan'' is green.
* Parodied in the ''TheSimpsons'', where Moe is trying to convince a group of kids that he's not a troll because he bleeds red. Then he nicks his finger, and a frustrated Moe sees green blood spurting from the wound.

** The trope of artificial humans having white blood possibly comes from the early research into oxygen-carrying temporary blood replacements for emergency surgery. Some of these work using very different chemical processes to naturally occurring blood (of any colour) and look a lot like milk.

** Karkat's blood is a mutation -- bright red like human and carapace blood. This puts him completely outside (and beneath) the entire hemospectrum and has only been possessed by one other troll in history, his ancestor [[TheMessiah The Sufferer]]. As a result, Karkat opts for "blood anonymity" by typing in grey instead of his blood color as all the other trolls do.

** Thorian creepers don't bleed per se, but they do generate splatters of brownish-green material when they die. There's also a scene where Shepard has the option to MercyKill a room of Salarians, revealing orange blood.
*** Oddly enough, Salarians have ''green'' blood in the second game.