In the development of a show, movie, game, TV series, etc., everything from characters, settings, stages, etc., changes rapidly. Characters become other characters, different plots fuse and split or are destroyed. Eventually, you get the finished product, but the developers aren't going to forget the past. In this case, the designers might put in a little thing or two that alludes back to something that happened in development, so they can all have a good laugh about it.

An inside joke to the greatest measure, unless the viewer/player has been given a beta that includes what the joke is about, they'll probably never going to know what the joke is about, or even if it's supposed to be funny. Can be anything from a previous character design to a joke about one of the developers, but you'll probably never know.

See CallBack for references to things that actually appear in the plot, ProductionThrowback for development on prior works, and MythologyGag for references to things that happen in alternate adaptations. When the backstory behind these gags are explained, that's an example of WhatCouldHaveBeen, given by WordOfGod. A cameo from TheOtherMarty would be this.



[[folder:Anime & Manga]]
* The English dub of ''Anime/FullmetalAlchemist'' has the voice Creator/TravisWillingham used for Mustang's "[[ChewingTheScenery I love dogs!]]" line, which is based on the voice he used when trying out as ''[[LargeHam Major Armstrong]]''; he even refers to the voice as "Armstang."
* In ''Manga/{{Naruto}}'' a character is introduced named Sabu, who possesses a giant axe and has a giant raccoon dog named Ponta for a pet. Both of these things are references to a character named Kintaro, who also possessed a giant axe and a giant raccoon dog named ''Pochi'', who was replaced by Zabuza and Haku as the main villain of the Land of Waves arc.
* Kotsuzuka, the creepy kid from ''Manga/YuGiOh'', has a skull-shaped face that was originally going to used for Yami Yugi.
* Creator/YoshiyukiTomino has a habit of taking ideas from earlier drafts of his work and finding other ways to work them in:
** In ''Anime/MobileSuitGundam,'' [[TheEmpire Zeon]] has two HumongousMecha competing to be their next-gen war machine, the [[ Gelgoog]] and the [[ Gyan.]] In Tomino's original proposal, the Gelgoog was named "Gyan," while the Gyan was named "Bakuji."
** Tomino's original idea for the Zeong, the "final boss" mecha of the original show, involved it being able to [[DetachmentCombat split its body into several remote controlled pieces;]] this concept later popped up in ''Anime/TurnAGundam'' as a unique property of the Turn X, that show's "final boss." On top of this, ''VideoGame/SDGundamGGeneration'' eventually introduced an OriginalGeneration variant of the Zeong which matched Tomino's original idea.
* Episode 13 of ''LightNovel/IsItWrongToTryToPickUpGirlsInADungeon'' is titled ''Familia Myth''. This was also what the author originally wanted to call the series before the editor suggested otherwise.
* In ''Manga/SailorMoon'', Minako/Sailor Venus is intended to work as Princess Serenity's BodyDouble, and they even have similar looks (and disguise powers). Usagi/Sailor Moon/Princess Serenity is an {{Expy}} of Minako, who first debuted in ''Manga/CodenameSailorV'' a year before her.
* ''Manga/SgtFrog'': In episode 12-B of the English dub, Kululu accidentally calls Giroro "Giro" -- which was his name in the preliminary dub (of that same episode no less)
* ''Anime/DragonBallZ'' was originally going to have Android 19 and Android 20 be the androids from the future. When they appear, they are instead mistaken for the androids from the future.

[[folder:Card Games]]
* ''TabletopGame/MagicTheGathering'' has loads of these. WordOfGod says that they use intentionally absurd names in an attempt to defy the trope for the most part, but they can get quite creative when it comes to sneaking subtle in-jokes into the final names. Amongst the notable ones are Telim'Tor, whose name is an anagram of his playtest/development name, Mr Toilet; and Sol Grail, whose name is an anagram of Gorillas, which were the playtest/development race for every creature in Alliances.
** [[ Maro]] was submitted to the development file for Mirage with its creator's username ([=MaRo=] for Mark Rosewater) for the database instead of a placeholder name. No-one noticed the mistake until the Creative department had already commissioned the art, so it stayed.
** The enchantment card Pemmin's Aura, (which gives a creature the same laundry list of abilities boasted by the infamous Morphling), is an anagram for its development name, I Am Superman.This is a reference to the REM song of the same name:
--->I am, I am superman
--->And I can do anything...
** [[ Hyalopterous Lemure]] combined this with a CallBack nearly a decade in the making. A lemure is an obscure type of angry ghost. A Lemur is an adorable type of primate. As you can see from the art, the artist was not aware of the former. Flash forward years later, and someone has the same problem in the FlavorText of [[ Viscid Lemures]]
---> "Lemurs? Is that all? Finally, something harmless…"
----> —Norin the Wary

[[folder:Comic Books]]
* Not exactly a joke, but ''ComicBook/{{Invincible}}'' later introduced a character called Bulletproof who used Invincible's initial name and costume. In-story, the costume was even developed for Invincible but rejected.
* In the final storyline of Creator/DCComics' ''ComicBook/{{Hourman}}'' title (the one about the "diamond generation intelligent machine colony from the 853rd century, DNA-programmed with Miraclo gene biosoftware") he was confronted with a further-future version of himself, who was much better at both being a hero and being a person than him ([[spoiler:it turned out to be Amazo]]). The design for the future Hourman was identical to an early design seen in the ''Hourman'' sketchbook given away with ''Wizard'' when the title began.
* Creator/MarvelComics has had several references to a character named 'Coal Tiger', which was one of several names that Stan Lee and Jack Kirby were bandying back and forth as a possible name for the character who in mainstream continuity in the MarvelUniverse became ComicBook/BlackPanther. These include:
** The Black Panther's son in the ''ComicBook/MarvelComics2'' alternate future.
** An alternate universe version of T'Challa himself, who appeared in ''ComicBook/TheAvengers'' Vol. 1 #355 as a member of the Gatherers, a group of former Avengers from different universes. This version had a costume based on a Jack Kirby design for a new costume for the Black Panther that only ever appeared in a pin-up.
** A Coal Tiger is mentioned in ''ComicBook/CaptainAmerica'' Vol. 1 #389 as an opponent of the Zambian villainess Impala.
** In ''ComicBook/BlackPanther'' Vol. 3 #60, the Coal Tigers are mentioned as being a rank in the Panther Cult.
* The working name for the Dinobot Swoop was Divebomb. ComicBook/TheTransformers Marvel UK comics said that was his name back in Cybertron. Some time later, when Hasbro coincidentally made a Decepticon named Divebomb as part of the Predacons, the comics explained that Swoop lost his name to him after a defeat.
* The title of DC's ''Reign of the Supermen'' event which tied into ComicBook/TheDeathOfSuperman event is a reference to ''ReignOfTheSuperman'' which featured the first Superman character Siegel and Shuster developed.
* The ''Magazine/DoctorWhoMagazine'' comic strip "Fire and Brimstone" featured a war between the Daleks and spider-like Daleks from an alternate universe. The spider-Daleks look very similar to the controversial Dalek designs from one version of ''Last of the Time Lords'', the unmade ''Series/DoctorWho'' reboot movie that was floating around in TheNineties.
* The ''ComicBook/DoctorWhoTitan'' comics have a couple of examples:
** The section of the Eleventh Doctor Year Two series that returns to the setting of the cancelled TV story "Shada" includes many metafictional in-jokes about the story's unfinished nature and ambiguous canonicity.
** In the Ninth Doctor story "Doctormania", the fake "Doctor Who" has a companion called Penny, who shares a name with a never-was companion who Creator/RussellTDavies conceived for Series Four in case Catherine Tate was unable to commit to a regular role as Donna.
** In the classic Doctor teasers for ''Comicbook/DoctorWhoSupremacyOfTheCybermen'', the Cybermen threatening the Fourth Doctor depart from the conceit that each Doctor is attacked by "his" Cybermen by being apparently based on [[ the version]] designed for the unmade 30th anniversary special "The Dark Dimension" (a Fourth-centric story about the Doctor's timeline being rewritten). The War Doctor - since there obviously isn't a "War Doctor Era" Cyberman design - faces Cybermen based on [[ an early concept]] for the "Age of Steel" versions.
* ''[[ComicBook/TheMultiversity Pax Americana #1]]'' is basically ''Comicbook/{{Watchmen}}'' as originally intended--that is, with Creator/CharltonComics characters instead of [[CaptainErsatz ersatzes]]. One exception is Thunderbolt, the model for Ozymandias, but not owned by DC. President Harley is something of an {{expy}} for both.
* In the ''ComicBook/JemAndTheHolograms'' series from IDW, Jetta is given a RaceLift and made into a young black woman. This is a nod to fact that originally, Jetta was going to be black in the [[WesternAnimation/{{Jem}} animated series]] before ExecutiveMeddling caused her to become a white Englishwoman instead.
* Harper Row plays a major role in [[Comicbook/{{Batgirl 2000}} Cassandra Cain]]'s return during ''Comicbook/BatmanAndRobinEternal''. At the start of the ComicBook/{{New 52}}, Harper was created as a [[SuspiciouslySimilarSubstitute replacement for Cass]] after ScottSnyder was denied permission to use her in his ''Franchise/{{Batman}}'' run.
* In IDW's ''ComicBook/BackToTheFuture'', Doc Brown's prototype flux capacitor is called a temporal field capacitor, which was the original name of the flux capacitor in early script drafts of the first ''Film/BackToTheFuture''.
* In an early Comicbook/DoctorStrange story in ''Strange Tales'', a generic character is called "Frau Lieber". Writer Creator/StanLee was born Stanley Lieber; he had assumed a PenName specifically for writing comics [[note]]and short prose stories included with comicbooks[[/note]] and ended up sticking with it.

[[folder:Films -- Animation]]
* The commentary for ''Disney/AtlantisTheLostEmpire'' tells a story about how there used to be a mystic named Zoltan (who used to speak in the [[ThirdPersonPerson third person]], for some reason) along for the ride. At one point everybody sounds off after falling down a hole. For the longest time he was still there shouting "Zoltan is okay!" even after his character had been written out of the script.
* Near the end of ''Disney/BeautyAndTheBeast'', while the enchanted furniture are fighting off the villagers, a music box can be seen among said furniture. That music box was originally going to be Belle's sidekick.
* At one point in ''WesternAnimation/CloudyWithAChanceOfMeatballs''' development, Flint was trying to get into the Science League, headed by Vance [=LaFleur=]. You can still see a poster for the League in his room and lab.
* In ''WesternAnimation/DespicableMe'', the Minions were originally going to be human. The guards at PX-Labs in [[WesternAnimation/DespicableMe2 the sequel]] are based on the original concept.
* In ''Disney/TheEmperorsNewGroove'', there is at least one reference to a small, mystical guide to the Emperor, despite the fact that he was written out of the plot: he appears as a candle-holder during the poisoning scene. (Watching DVD commentary is fun.)
* ''Disney/{{Frozen}}'':
** Part of "For The First Time In Forever" uses the tune from Anna's unused song "More Than Just A Spare".
** Some of Elsa's [[SexyWalk more flamboyant movements]] during "Let It Go" date back to when it was a sassy VillainSong. It ends up making her look confident, so it works well despite the change in tone.
** The start of "Making Today A Perfect Day For You" from ''Disney/FrozenFever'' reuses the tune of the unused song "Life's Too Short", that was replaced with "For The First Time In Forever (Reprise)" in the final film.
** "Life's Too Short" itself uses elements of an earlier song, from an even earlier incarnation where Elsa was the villain, named "Cool With Me". The two songs are different in topic and tone, however they both share a theme of Elsa telling Anna about how she loves her powers and later the two arguing, though in "Cool With Me" Anna is (rightfully) upset about Elsa kidnapping her from her own wedding and disapproving of her sister while in "Life's Too Short" they get into an argument when Elsa thinks Anna wants to make her conceal herself again.
--->'''Cool With Me'''
-->'''Elsa''': We've been falling out for way too long. So let's forget [[NeverMyFault I'm right and forget you're wrong]]. Okay! Let's try forgiving, we could learn to live in harmony.
--->'''Life's Too Short''':
-->'''Elsa''': We've been falling out for way too long.
-->'''Anna''': So let's forget who's right--
-->'''Elsa''': And forget who's wrong.
-->'''Both''': Okay!
-->'''Elsa''': Why don't you stay? There's room for family in my court.
* Near the very beginning of ''Disney/TheRescuers'', [[BigBad Madame Medusa]] can actually be seen driving a large red sports car to New York City Airport, not unlike the one driven by [[Disney/OneHundredandOneDalmatians Cruella DeVil.]] Originally, the villain of ''The Rescuers'' was actually indeed going to be Cruella [=DeVil=]! So in fact, that car doesn't just ''look'' like Cruella's, that car ''is'' Cruella's.
* ''WesternAnimation/{{Robots}}'' has several. The robot with the jet pack seen waiting in line on Big Weld's TV show is an early design for Rodney, and Jack Hammer, the owner of the hardware store Rodney and his friends visit was originally a director from an early treatment. Scenes from early test footage with the director character appear as photos on Aunt Fanny's home.
* One of the drawings during the end credits of ''Disney/{{Tangled}}'' shows Rapunzel and Flynn consulting a fortune-telling monkey, in reference to a deleted scene in which Rapunzel and Flynn escape some guards with the help of a gypsy and her pet monkey.
* ''Franchise/ToyStory'':
** In ''WesternAnimation/ToyStory3'', there is a bumper sticker on Andy Davis' drawer labelled "Newt Xing", a *possible reference to [[WhatCouldHaveBeen the cancelled Pixar film]] ''Newt''.
** Many ideas from the first ''WesternAnimation/ToyStory'' made it into [[WesternAnimation/ToyStory2 the second]]. Originally the first movie was going to open on a clip from the TV cartoon the Buzz Lightyear toy was from, which got reworked as the video game opening for the sequel.
** The idea for [[spoiler:having a villainous teddy bear]], as seen in ''WesternAnimation/ToyStory3'', actually predates the ''Toy Story'' franchise itself, to a proposed Christmas special based on ''[[WesternAnimation/PixarShorts Tin Toy]]''
* In Disney/{{Zootopia}}, an early draft in which Nick was the protagonist had him at one point working for a restaurant in the rodent district called Chez Cheez. This plot point, along with [[WhatCouldHaveBeen a great many others]], got dropped during a massive rewrite. Nonetheless, a billboard advertising for this restaurant appears in the final movie, as a background element in the scene where Judy chases Weaselton through that district.

[[folder:Films -- Live-Action]]
* ''Film/SpiderMan2'': The film has a couple of playful jabs at Tobey Maguire's back problems, which nearly forced him to drop out. This includes the "I'm back, I'm back! ...My back, my back!" scene, and a FreezeFrameBonus Bugle headline claiming link between back pain and brain shrinkage. That headline is actually a lot more mean-spirited than it seems: Maguire's back problems were a point of contention on set, and it was generally assumed by most of the production staff that he was using his condition to avoid showing up on the set or working on days that he didn't feel like it (regardless of whether or not that was true). At one point, they even threatened to fire and replace him.
* ''Franchise/StarWars'':
** A lot of names from the early, unused drafts of ''Franchise/StarWars'' continue to pop up in newer works. "Starkiller", Luke's original surname, [[ shows up a lot,]] and Mace Windu's name can be traced back to "Mace Windy" from the first treatment.
** Similarly, the planet "Utapau", which was originally a blue planet with many moons mentioned in the first draft of "The Star Wars", then became the preliminary name for Tatooine, then the preliminary name for Naboo, and finally appeared in Episode III as a green planet with many moons and dotted with sinkholes.
** Other names that can be traced back to previous drafts, where they were used in different contexts, include "Valorum", "Sith", "Clieg" (Cliegg), "Whitsun" (Whitesun), "Bail", "Antilles", "Ogana" (Organa), "Dai Noga" (Dianoga), "Grande Mouff Tarkin" (Grand Moff Tarkin)... even "Annikin" (Anakin).
** There's an odd example of what seems to be a genuine inside joke in the original movie's first draft. George Lucas's earliest concept for ''Star Wars'' back in 1971 centred around two main characters: the Jedi-Bendu master Mace Windy and his apprentice Chuiee "C.J." Thape – but this was quickly abandoned. However, in the first draft there's an extended sequence in the middle where there's an attack run on the Death Star (ultimately unsuccessful, in which all the hero fighter pilots are killed). None of the film's main characters appear in this sequence, which instead focuses on two pilots with the callsigns "Pilot Leader" and "Devil Two" – whose real names are given in dialogue as "Mace" and "Chewie" respectively.
** One draft of the script for ''Film/ReturnOfTheJedi'' featured the ''Millennium Falcon'' being lost with all hands at Endor. Han alludes to this in the final version:
---> '''Leia:''' Hey, you awake?\\
'''Han:''' ''(gazing at the ''Falcon'')'' Yeah, I just got a funny feeling. Like I'm not going to see her again.
** "Revenge of the Sith" was presumably named after the working title for Episode VI, "Revenge" of the Jedi.
** An early code name for Star Wars, "Blue Harvest," also appears frequently in the Expanded Universe.
** The design of the ''Tantive IV'', Leia's spaceship in ''Film/ANewHope'', is taken from a rejected early design for the ''Millenium Falcon''.
** Rey's speeder, featured prominently in advertising for ''Film/TheForceAwakens'', looks so uncannily like a ''[[ fudge popsicle]]'' that the resemblance couldn't possibly have been unintentional. Considering the film's RevisitingTheRoots approach to the original trilogy, this was likely a reference to Lucas' original inspiration for the ''Millennium Falcon''--which, according to WordOfGod, was inspired by a half-eaten hamburger with an olive next to it.
** In the 1974 rough draft of "The Star Wars", the Starkillers (later "Skywalkers") were said to hail from the planet "Aquilae", and the movie began with them returning to their home planet to defend it from the Empire. Ponda Baba ("Walrus Man"), the tusked alien who accosts Luke at the Mos Eisley cantina, was later revealed to be an "Aqualish", one of several species hailing from the planet Ando.
** In one early draft of "The Star Wars", Princess Leia's mother, Queen Breha of Aquilae [[note]] Not Alderaan; in earlier drafts, Alderaan was the capital of the Empire.[[/note]], was a major supporting character, and a key plot point involved her abdicating the throne to Leia. In the final version of the series, of course, Leia's mother was Padmé Amidala, who [[MissingMom died in the prequels]]--but Queen Breha of Alderaan (Bail Organa's wife) was eventually established as her ''step''mother.
** According to WordOfGod, Lucas' [[WhatCouldHaveBeen original nine-part plan]] for the ''Star Wars'' saga was never supposed to have TheReveal in the Original Trilogy that Leia and Luke were siblings (Leia was going to be Luke's love interest until the end), but Luke ''was'' eventually supposed to learn that he had a long-lost sister, and a major plot point in the Sequel Trilogy was supposed to involve him searching for her. Appropriately enough, ''Film/TheForceAwakens''--the first installment of the honest-to-god Sequel Trilogy--turned out to be all about [[spoiler: Leia leading the search for a missing Luke after his mysterious disappearance]].
** "The Star Wars" was originally going to have a young up-and-coming Jedi named "Annikin Starkiller" ''[sic]'' as its protagonist from the beginning, and "General Luke Skywalker" was supposed to be the leader of the Rebellion. Lucas eventually decided to merge the two characters for simplicity's sake, making Luke the protagonist of the series instead, but made "Anakin Skywalker" Luke's father as a reference to the earlier version of the character.
** The BattleAmongstTheFlames on the [[LethalLavaLand volcanic planet]] of Mustafar at the very end of ''Film/RevengeOfTheSith'' is a reference to [[WhatCouldHaveBeen the originally planned ending]] of ''Film/ReturnOfTheJedi'', which was sketched out in Ralph [=McQuarrie=]'s concept art but never brought to life. Before Lucas decided to set the FinalBattle between Luke and Vader on a second Death Star, he wanted to end the Original Trilogy with an epic face-off at Emperor Palpatine's private SupervillainLair, located next to a giant lake of lava on the (then-unnamed) Imperial capital world. [=McQuarrie=] wasn't involved in the prequels, having retired in the 1990's, but some shots on Mustafar are recreated almost entirely from his drawings.
** Rey's outfit for the majority of ''Film/TheForceAwakens'' was confirmed to be inspired by Luke in ''Film/ANewHope'', but it seems the filmmakers took inspiration from early concept art from the period in which Lucas played with the idea of making Luke a girl. [[spoiler:Fitting, since Rey takes up Luke's role of TheHero]].
** Early concept art of R2-D2 shows him [[ rolling on a ball bearing]], much like BB-8 from ''The Force Awakens''.
* ''Film/TheDarkKnight'' had Batman undergo a costume change in order to be able to fight faster and turn his head. This was done because Christian Bale had his fill of the Batsuit in [[Film/BatmanBegins the first installment]], and wanted a more comfortable design.
* In ''Film/{{Aliens}}'', Hudson teases Vasquez by saying "When they said 'Alien', she thought they said 'Illegal Alien' and signed up." Vasquez' actress actually did make that mistake, and showed up to the auditions dressed as a migrant worker.
** In a cross-continuity example, the decision to cast Creator/LanceHenriksen as [[RidiculouslyHumanRobot Bishop]] may have been [[CastingGag intended as a nod to him being]] Creator/JamesCameron's first choice for the role of the T-800 in ''Film/TheTerminator''.
* In ''Film/AlienCovenant'', the Neomorph's design is based on the Beluga alien design that was going to appear in an earlier draft of ''Film/{{Prometheus}}'', ''Alien: Engineers''.
* In the [[Film/TheFlintstones film adaptation]] of ''WesternAnimation/TheFlintstones'', Fred is accidentally referred to as Mr. Flagstone. The original name for the show was The Flagstones.
* This example might actually be an urban legend: The [[ Enterprise XCV-330]], first seen in the recreation room in ''Film/StarTrekTheMotionPicture'', is often claimed to be based upon a rejected design by Matt Jefferies for the [[Series/StarTrekTheOriginalSeries NCC-1701]]. But [[ there is evidence]] that Jefferies actually might have designed it at some time after the end of TOS, for another Roddenberry-project which never did come into fruition.
** Possibly related: the "Jefferies tubes" that Star Trek characters crawl around in to whenever they need to get into the real guts of their ships may be a nod to his last name and role in ship design for the series.
* The ''Franchise/IndianaJones'' films have famously gone through a lot of work before getting to what we saw in theatres. For example, an early version of ''Film/IndianaJonesAndTheLastCrusade'' was set predominantly in a haunted castle, which is reference with Brunwald castle (in which Henry Jones Sr is held captive) and an early title for ''Film/IndianaJonesAndTheKingdomOfTheCrystalSkull'' was ''Indiana Jones and the Saucermen from Mars'' - Indy dismisses the crystal skulls as belonging to "Saucermen from Mars" when he is interrogated by Irina in the tent.
** The films started out of Creator/StevenSpielberg's interest in making a Creator/JamesBond film, but being turned down by then-executive producer Albert R. Broccoli. In the opening of ''Film/IndianaJonesAndTheTempleOfDoom'', Indy's origins as a Bond {{expy}} are depicted as he's dressed similarly to Creator/SeanConnery's Bond in ''Film/{{Goldfinger}}''. And then, in ''Film/IndianaJonesAndTheLastCrusade'', Sean Connery himself played Indy's father Henry Sr., because both Spielberg and Creator/GeorgeLucas thought the only man who could play Indy's father was James Bond. Thus, making Bond, in every sense of the word, ''the'' father of Indiana Jones.
* In ''Film/BackToTheFuturePartII'', Biff is listening to Perry Como's "Papa Loves Mambo" on the radio while driving to the dance. WordOfGod explained in the DVD commentary that they almost used "Papa Loves Mambo" in Part I for the MisterSandmanSequence, but ended up using "[[TropeNamer Mr. Sandman]]" instead. They stuck the Perry Como song into Part II as their way of referencing this little inside joke.
* The 2005 version of ''Film/PrideAndPrejudice'' has an unusual one. It's not a ''movie development gag'' but a ''book development gag''. Early in the movie, Elizabeth is seen reading a book titled "First Impressions." "First Impressions" was the original title Jane Austen gave "Pride and Prejudice." Also, when the pages of the book are shown, it's revealed that Elizabeth is reading the last chapter of "Pride and Prejudice" with the characters' names changed.
* ''Film/IAmLegend'' includes a development gag to another movie - a giant poster in Times Square has a ''ComicBook/SupermanBatman'' logo. Screenwriter Akiva Goldsman was hired to write a Batman vs Superman film before it fell through.
* Creator/StevenSpielberg had hired [[StopMotion go-motion]] expert Phil Tippett to do the ''Film/JurassicPark'' dinosaurs. Then [[Creator/IndustrialLightAndMagic ILM]] did an awesome demo of computer-generated dinos. The exchange when Spielberg showed Tippett said demo ("You're out of a job", "Don't you mean extinct?") became a dialogue in the movie.
* "[[ComicBookAdaptation Tales From Year Zero]]" is FULL of references to earlier versions of the script for ''Film/PacificRim'' before Guillermo Del Toro became involved with the project; for example, the comic's main character Naomi Sokolov was the film's deuteragonist, traveling the world to find out the reasons behind the {{Kaiju}}, and the simulated death of Yancy Beckett by Kaiju tongue was how he actually died.
** There's a scene in ''Film/PacificRim'' where Gypsy Danger punches through an office building. The shot includes a closeup of a desk with a Newton's Cradle that gets bumped by the fist. This was a miniature shot, and on the desk's cubicle wall is a piece of paper. The paper is actually a shrunk down ILM shot sheet that shows how far behind their shooting schedule they were at that point.[[note]]That shot ended up putting them further behind because the hydraulic piston that plowed through the miniature got stuck halfway through on the first take. It appropriately damaged everything in its path, which had to hastily be repaired and/or the damage hidden (some of it by digitally compositing parts of the first shot - specifically the ceiling) so they could do a 2nd take.[[/note]]
* ''Film/{{Godzilla 2014}}'' has one scene where Las Vegas gets attacked by a Muto. Las Vegas was going to be the primary setting of ''Godzilla 3D to the Max'', the IMAX 3D short film project that was gradually repurposed into this feature-length film.
* In ''Film/TeenageMutantNinjaTurtles2014'', Vernon misinterprets April's description of the turtles, asking if they're aliens. April points out how stupid that idea sounds. This was exactly how the fans reacted during very early development when a leaked script (that wasn't even real) had the turtles be aliens.
* ''Film/AFaceInTheCrowd'' ends with Lonesome Rhodes standing on his penthouse balcony as if about to jump to his death, still pleading for Marcia not to leave him. Mel says, "I don't figure him for a suicide." This line obviously came from a comment on a draft script which did end with Lonesome's suicide.
* ''Film/{{Predators}}'' has an extraterrestrial who employs the original design for the Film/{{Predator}} himself (before the producers felt it didn't work and hired Creator/StanWinston to design the eventual mandibled beast).
* ''Film/AddamsFamilyValues'' adds a CanonForeigner baby boy named Pubert to the titular family. None of the main characters were given first names until the comic strip was adapted into [[Series/TheAddamsFamily a tv show]], and creator Creator/CharlesAddams' original proposed name for Pugsley was Pubert.
* A sort of meta example since it wasn't mentioned in the film, but supplementary material reveals that ''Film/JurassicWorld'''s titular park opened in 2005 and its plot takes place ten years after. The film itself was originally meant to be released in 2005, but was trapped in DevelopmentHell and ended up setting up for a 2015 release date.
* ''Film/XMenFilmSeries'':
** When the [[Film/XMen1 first film]] was released, it helped start a tradition that characters normally clad in colorful spandex costumes [[MovieSuperheroesWearBlack instead opt for more practical black outfits]]. As such, it's lampshaded when Wolverine asks if they go outside in the suits when Cyclops activates the X-Jet for the final battle: "What would you prefer? Yellow spandex?"
** Film/{{Deadpool|2016}} describes [[Characters/XMenFilmSeriesProfessorCharlesXavier Professor X]] as a "bald, Heaven's Gate-looking motherfucker," but then later asks whether the Professor is "[[Creator/JamesMcAvoy McAvoy]] or [[Creator/PatrickStewart Stewart]]?" The former showed up for ''Film/XMenFirstClass'' with his head shaved, but the producers wanted the young Charles Xavier to have hair, so [=McAvoy=] had to wear extensions during much of that movie's filming.
* The 2017 ''Film/{{Power Rangers|2017}}'' reboot movie attracted a bit of controversy for two {{Race Lift}}s among the main cast: Billy Cranston (the Blue Ranger), Caucasian in the series, is here played by African-American actor R.J. Cyler, while Trini Kwan (the Yellow Ranger), Asian in the series, is played by Hispanic singer-actress Becky Gomez. If you know your ''Power Rangers'' history, though, you might recognize both of those casting choices as subtle nods to the originally planned version of ''Series/MightyMorphinPowerRangers''. According to WordOfGod, the African-American Walter Jones (Zack Taylor) was originally going to play the Blue Ranger instead of the Black Ranger, and the Yellow Ranger [[TheOtherMarty was played by Hispanic actress Audri Dubois in the unaired pilot]] before the Vietnamese-American Thuy Trang (Trini) was brought in to replace her.
* The [[TheStinger post-credits scene]] in ''Film/AntMan'' features [[spoiler: Hank Pym offering his daughter Hope the chance to [[LegacyCharacter follow in her mother's footsteps]] and become ComicBook/{{the Wasp}}]]. As soon as Hope sees [[spoiler: the newly-built Wasp costume]], she smiles knowingly and says "It's about damn time". This is a subtle nod to the fact that [[spoiler: the Wasp was originally supposed to debut in ''Film/TheAvengers2012'', three years before ''Ant-Man'' came out]].
* At the end of ''Film/BeautyAndTheBeast2017'', Belle asks the Beast if he could grow a beard. This was actually a cut line from the [[Disney/BeautyAndTheBeast animated version]].

* The ''Literature/{{Xanth}}'' character Jenny Elf is based on a real life reader, who was given the choice of being an elf or an ogre in the books. The ogre she ''could'' have been later showed up, jealous at having missed her shot at becoming a main character.
* A sort of sequel-by-other-hands/{{fanon}} development gag: In his biography of Literature/SherlockHolmes, William S. Baring-Gould speculated that if, as stated by Creator/ArthurConanDoyle, the Holmes family were county squires, Sherlock and Mycroft must have an older brother, or else Mycroft would be the squire and would therefore be maintaining the estate up in Yorkshire. The development gag is that Baring-Gould named this brother "Sherrinford"; Doyle originally called Holmes "Sherrinford Hope".
* In ''Discworld/TheTruth'', there's a brief mention of the dwarfs mixing up ink for the printing engine from an old well beneath the building. It's a little detail that doesn't mean anything ... unless you know that the earliest plotline Creator/TerryPratchett came up with for a "newspapers on the Literature/{{Discworld}}" novel was "what if it's printed with ink that has accidentally been mixed with water from the Well of Truth?"
* ''Literature/StarTrekMyriadUniverses''
** In the novella ''Seeds of Dissent'', set in a universe where Khan Noonien Singh won the Eugenics Wars, and the human cast of ''Series/StarTrekDeepSpaceNine'' are all descendants of his followers, Julian Bashir is the captain of the starship ''Defiance''. The ship's doctor is Constantin Amoros, who shares a bloodline with Bashir, and therefore has a similar appearance. Early [=DS9=] planning documents called Dr Bashir "Dr Julian Amoros".
** In the novella ''A Less Perfect Union'', the communications officer on Pike's ''Enterprise'' is Lieutenant Penda [[spoiler: who turns out to be a cover identity for Starfleet Intelligence Agent Nyota Uhura]]. "Penda" was an early {{Fanon}} proposal for Uhura's first name, before the fandom decided on "Nyota".
* In Creator/StephenBaxter's official sequel to ''Literature/TheTimeMachine'', ''The Time Ships'', the Time Traveller's younger self is named (or nicknamed) "Moses" and a Morlock from an alternate future is called Nebogipfel. In Wells's first time travel story, "The Chronic Argonauts", the traveller is named Dr Moses Nebogipfel.
* According to Creator/JRRTolkien's introduction to the poetry collection ''The Adventures of Tom Bombadil and Other Verses from the Red Book'', the poem "Errantry" must have been written by Bilbo early in his life, before he knew much about Elves (since the "Elvish" names are invented and it has no connection to Middle-Earth's "real" Elvish traditions) and the meter formed the basis for his later epic poem about the Elvish legend of Eärendil, as seen in ''Literature/LordOfTheRings''. It also suggests Bilbo must have been quite proud of the meter, which was his own invention. In the real world, "Errantry" was first published in ''The Oxford Magazine'' in 1933, and was not intended to be part of Franchise/TolkiensLegendarium until he used the meter (which he invented) for "Eärendillinwë".

[[folder:Live Action TV]]
* When Joel Surnow first got the idea for ''Series/TwentyFour'', all he really knew was that he wanted it to take place within a 24-hour timespan. His first idea was to do a show about planning for a wedding, and all of the crazy hijinks that happen in the 24 hours before it. Fittingly, the first part of Day 2 is about a family getting ready for a wedding.
* In ''Series/CriminalMinds'', Jason Gideon's name was originally Jason Donovan. This is the name of the author of a book Gideon finds in an [=UnSub's=] apartment in one episode.
* ''Series/{{Friends}}'': On the normal show, Monica and Chandler fall in love and are HappilyMarried for years. All sounds normal, though Monica mentions she once had crush on [[TheCasanova Joey]] and Chandler is sometimes MistakenForGay. In the original plan, Monica and ''Joey'' were the shows OfficialCouple and Chandler was gay. It's a sign of how much can change that the shows most constant couple would never have been imagined in early drafts.
* ''Series/DoctorWho'':
** "[[Recap/DoctorWhoS12E1Robot Robot]]" contains a scene where the recently regenerated Doctor is happy to see his new nose, regarding it as an improvement. Creator/TerranceDicks added this in as a friendly jab at Creator/JonPertwee, who was hugely sensitive about his big nose and refused to be shot from certain angles because of it.
** In "[[Recap/DoctorWhoS13E6TheSeedsOfDoom The Seeds of Doom]]", a character is confused by the Fourth Doctor's appearance, saying he'd expected someone older. This is a reference to how Creator/RobertHolmes' original concept for the Fourth Doctor had been an elderly eccentric, but they'd ended up casting an actor who was younger than any of the previous Doctors had been (a controversial decision in the fandom at the time).
** Creator/TomBaker alters a line in "[[Recap/DoctorWhoS14E5TheRobotsOfDeath The Robots of Death]]" to refer to [[UncannyValley robophobia]] as "Grimwade's Syndrome", referencing Peter Grimwade, a production assistant who tended to always end up working on robot stories.
** The Gallifreyan writing (inside hexagons) seen in the new series resembles the strange abstract hexagonal design made by Susan, the Doctor's grand-daughter, in an un-aired pilot for ''Series/DoctorWho''.
** This is how AliensInCardiff came to be, starting in "[[Recap/DoctorWhoS27E3TheUnquietDead The Unquiet Dead]]". Since BBC Wales films there, it's treated as a borderline PlaceWorseThanDeath in-universe, with everyone astonished that anything interesting happens there. "I saw the fall of Troy! World War Five! Now I'm gonna die in a dungeon... in ''Cardiff''."
** The Doctor's scoffing "You've been watching too much TV" when Martha asks if the Master is his secret brother in "[[Recap/DoctorWhoS29E12TheSoundOfDrums The Sound of Drums]]" may be an insult directed at controversial early plans for what became [[Recap/DoctorWhoTVMTheTVMovie The TV Movie]] to be a full ContinuityReboot, which would have included that as a plot element.
** In the new series, the season 4 premier "[[Recap/DoctorWhoS30E1PartnersInCrime Partners in Crime]]" featured a character named Penny Carter. Penny Carter was the name of the original companion for Season 4. However, Creator/CatherineTate, who had previously appeared as Donna Noble in "[[Recap/DoctorWho2006CSTheRunawayBride The Runaway Bride]]", had such a great time, she asked if she could come back. So, Penny was written out and Donna was written in.
** The Doctor correcting Donna's pronunciation of "Sontaran" in "[[Recap/DoctorWhoS30E5ThePoisonSky The Poison Sky]]". The way Donna pronounces it, with the emphasis on the "Son", is the way the director of [[Recap/DoctorWhoS11E1TheTimeWarrior the first Sontaran story]], Alan Bromly, thought it should be pronounced. Kevin Lindsay, who played Linx, won that argument on the grounds that "I'm ''from'' the bloody planet!"
** Lady Christina, the single-story companion-substitute in "[[Recap/DoctorWhoS30E15PlanetOfTheDead Planet of the Dead]]", is very similar to what has been publicly stated as the concept of the companion who would have replaced Ace had the original show had a twenty-seventh season.
** "[[Recap/DoctorWho2012CSTheSnowmen The Snowmen]]" borrows heavily from two shitcanned Tom Baker-era scripts - "The Doctor Retires", a Creator/DouglasAdams concept about the Doctor going into retirement and ending up [[ChronicHeroSyndrome dragged back out again]], and "The Gaslight Murders", which featured the Doctor teaming up with a plucky Victorian Cockney girl companion (an early concept for Leela) to solve alien murders.
** [[Recap/DoctorWho2012CSTheSnowmen Clara's]] headstone in 1892 states that she was born on 23 November 1866 and that she died on 24 December 1892, meaning she not only shares the same birthday (though not the year) as ''Doctor Who'' itself but that she was also 26 years old when she died -- the exact same age as ''Doctor Who'' was when it was cancelled in 1989.
** Continuing this, [[Recap/DoctorWhoS33E7TheRingsOfAkhaten Clara's mother died]] March 5, 2005 -- the same day that the new series premiered.
* The ship wrecks featured in the ''Series/StarTrekTheNextGeneration'' episodes "[[Recap/StarTrekTheNextGenerationS3E26S4E1TheBestOfBothWorlds The Best of Both Worlds]]: Part II" and "[[{{Recap/StarTrekTheNextGenerationS5E7Unification1}} Unification, Part 1]]" [[ have been well documented by fans]]. It turns out that some of them are actually study models for the ''Excelsior'' from ''[[Film/StarTrekIIITheSearchForSpock Star Trek III]]''.
** In "[[{{Recap/StarTrekTheNextGenerationS7E10Parallels}} Parallels]]", Riker is shown to have been the ''Enterprise'''s captain since "The Best of Both Worlds" in at least two alternate universes, which was the producers' plan when it was unclear if Creator/PatrickStewart would renew his contract after season 3.
* Some of the ideas from the original pilot for ''Series/{{Heroes}}'' that were scrapped made it into the show. The most notable example is the character Ted Sprague, who was based off of an Islamic terrorist featured in the original pilot.
* ''Series/{{Lost}}'': An important character in Eko's flashback episode is named Emeka. Emeka was originally Eko's name during casting of the role, and numerous magazines reported it as his name when the actor was cast. It was changed to Eko shortly before filming began.
* In the ''Series/{{Seinfeld}}'' episode "The Betrayal", we get a flashback to Jerry and Kramer's first meeting, where the former calls the latter "Kessler" before being corrected. Kessler was the character's original name in the pilot episode.
* The two-part episode "The Menagerie" of ''Series/StarTrekTheOriginalSeries'' features extensive footage of the (at that time yet) unaired first pilot "[[Recap/StarTrekS1E0TheCage The Cage]]". Apart from Creator/LeonardNimoy as Spock, the cast was completely different, and also the design of the sets and the uniforms differed somewhat. "The Cage"-footage cleverly was used as {{Flashback}} to an earlier point in Spock's career. The episode also established that Christopher Pike, the Captain of the ''Enterprise'' in said unaired pilot, was actually Kirk's predecessor; this detail would even go on to influence ''Film/StarTrek'', which portrayed Pike as Kirk's mentor.
* At an early point in its development, ''Series/KamenRider'' was going to be called "Crossfire" and star a crime-fighting wrestler. The CrisisCrossover GrandFinale of ''Series/KamenRiderWizard'' paid tribute to this by introducing a MetaOrigin for the entire franchise: an object called the Cross of Fire, which is the literal embodiment of the powers all Kamen Riders possess.
** Similarly, the helmets worn by the SPIRIT soldiers in ''Manga/KamenRiderSpirits'' are based off unused concept art for ''Crossfire''.
* In ''Series/TheNanny'' episode "The Butler, the Husband, the Wife and Her Mother", Fran Fine criticizes Maxwell Sheffield for wearing bright yellow rain boots with his suit, saying "Normally, you're so GQ. Now, you're the Gorton's Fisherman?". Charles Shaughnessy, who played Maxwell, had shown up to his original audition wearing those same exact boots.
* ''Series/OnceUponATime'':
** A cross-media gag, the episode with Merida in a starring role in both storylines is called "The Bear and the Bow", the WorkingTitle for ''WesternAnimation/{{Brave}}''.
** In the Season One episode "Snow Fall", Emma inquires as to what Mary Margaret is doing out so late and Mary Margaret answers "I'm a teacher, not a nun. I was on a date." Mary Margaret was a nun in the original pilot script before being changed to a schoolteacher during production.
* ''Series/MontyPythonsFlyingCircus'': "Gwen Dibley's Flying Circus" was rejected as a title for the show because Gwen Dibley was the name of a real person; the Pythons liked the name, though, and they used it in some sketches.
* In ''Series/LukeCage2016'', someone calls Claire Temple "night nurse" at one point. Claire is a CompositeCharacter based on the eponymous character from the ''Comicbook/LukeCageHeroForHire'' comics and Linda Carter, one of the main characters from obscure 70s series ''Night Nurse''. The people behind the ''Franchise/MarvelCinematicUniverse'' Netflix shows were originally going to use Linda, but had to fall back on Claire to avoid a possible conflict with a future movie.

* ''Pinball/ElviraAndThePartyMonsters'' has a set of broken bones decorating the slingshot bumpers and inlane rails; this is in reference to a motorcycle accident designer Creator/DennisNordman had during the game's development.
* Similarly, one of Skull's lines in ''Pinball/NoFearDangerousSports'' references a motorbike accident designer Creator/SteveRitchie had, where he lost part of his finger. Ouch.

[[folder:Professional Wrestling]]
* Sometimes a pro wrestler will do subtle references back to previous gimmicks and characters they've had in the past, including all the way back to before they began with a company. For one example, former TNA wrestler Gunner wrestles in tights that have a [[ broken glass theme.]] This seems a little out of place, unless you know that he wrestled on the indy circuit for years as Phill ''Shatter.''
* Similar to the TNA example above, former WWE wrestler Wrestling/{{Ryback}}'s name likely won't make a lot of sense to those who don't know about him wrestling in the independents as Ryan "The Silverback" Reeves.
* Probably the biggest example of this is Stone Cold Steve Austin's finishing move being called the "Stone Cold Stunner". He was known for years as "Stunning" Steve Austin in WCW.
** Likewise, HHH's finisher is the "Pedigree", a callback to his former gimmick as a blueblooded snob.
* Major feuds that occurred in developmental can reappear on the main roster, especially if both wrestlers turn out to be major stars. Wrestling/JohnCena and Wrestling/RandyOrton, and Wrestling/DeanAmbrose and Wrestling/SethRollins are two notable cases. In even more added irony, they would switch "roles" on the main roster. Initially, the former for both rivalries were the heels in developmental; on the main roster, they're the faces.

* In ''Radio/CabinPressure'', Captain Martin Crieff makes a living driving a van for his company Icarus Removals when he's not flying for MJN Air. The original name for MJN Air was meant to be [[IcarusAllusion Icarus Airlines]], but as the character of Carolyn (the airline's owner) got fleshed out more he soon realised that she would never be daft enough to give it such a name. It was given to Martin's delivery company as a development gag.

* During the construction of the Colorado Rockies' stadium, the workers discovered several dinosaur fossils, including a fully intact triceratops skull. This led to the team selecting a triceratops (Dinger) as their mascot.

* Creator/WilliamShakespeare's ''Theatre/HenryIV Parts 1 and 2'' and ''Theatre/TheMerryWivesOfWindsor'' all have gags playing off the fact that Falstaff was originally called Sir John Oldcastle, until the descendents of the real Oldcastle objected. In ''Part 1'' Prince Hal calls him "My old lad of the castle"; in ''Part 2'' he's given a detail of Oldcastle's career (he was page to Thomas Mowbray, Duke of Norfolk) and the Epilogue has the SuspiciouslySpecificDenial "Falstaff may die of a sweat ... for Oldcastle died a martyr, and this is not the man"; and in ''Merry Wives'', when disguised as Herne, he seems to give his identity away by crying "Oh! Oh! Oh!" when burned (the joke being that he's crying "O!" for Oldcastle).
* The original set of ''Theatre/SpringAwakening'' includes a chalk board showing a list of songs in the show, and includes a couple references to places where songs were cut (for example, the name of the former act two opener "There Once Was a Pirate", can be seen written faintly above the name of its replacement.)
* The musical and film ''Theatre/LittleShopOfHorrors'' contains a VillainSong sung by the DepravedDentist Orin Scrivello. As composer Music/AlanMenken explains in a documentary about his life and music, his father and many of the other men in his family are dentists -- something which he also began to study for but gave up in order to pursue music instead. No doubt he and Howard Ashman, the lyricist, had fun writing the dentist's song!
* The last scene of ''Theatre/FunnyGirl'' has Fanny saying to Nicky at one point, "You should've heard the rest of the speech--I've been rehearsing it for weeks!" It's surely not a coincidence that this was the most rewritten scene in the show, and that Music/BarbraStreisand and Sydney Chaplin were rehearsing the final version less than an hour before it opened in New York.
* In ''Theatre/{{Follies}}'', Carlotta's "I'm Still Here," a replacement for the CutSong "Can That Boy Fox-Trot," is preceded by dialogue about a song of hers that got cut out of the (Weissmann) Follies.

[[folder:Theme Parks]]
* When ExecutiveMeddling caused the deletion of an ''Disney/AliceInWonderland'' sequence in the [[Ride/DisneyThemeParks California Adventure]] nighttime show ''Ride/WorldOfColor'', a brief appearance by the Cheshire Cat and Alice was placed into the finale.

* ''Toys/{{Bionicle}}'':
** A very early rejected mask design for Toa Pohatu was later used for another Toa of the Stone element, Toa Onewa.
** The mask of Makuta Mutran was originally to be called Artidax, the Mask of Mutation, until the writer realized that the Mutran set came with a Mask of Silence. The Mask of Mutation was later given to another Makuta, Miserix, and Artidax became the name of the island he had been imprisoned on.

[[folder:Video Games]]
* This was the original EasterEgg in computer games, as is recounted very neatly in that page.
* ''VideoGame/CityOfHeroes'' has a few jokes along this line, including the infamous Egg Hunter badge.
* ''VideoGame/JazzJackrabbit 2'' is full of these. Many of the secret areas have signs that have jokes and messages to the development/design team on them, which completely fly over the head of the average player.
* ''VideoGame/KnightsOfTheOldRepublicIITheSithLords'': "I'm Atton. I actually wasn't supposed to make it into the final game, but I was created at the last minute. Blame my agent. I was actually slated for a spin-off to ''[[VideoGame/DarkForcesSaga Jedi Knight]]'', but I don't want to talk about what happened ''there''."
* Coach from ''VideoGame/Left4Dead'' wants armor. This was a reference to Coach's early designs that had him wear football gear as makeshift armor. Hilariously, some mods can dress up Coach in said armor.
* Blizzard games are loaded with these. One of the most memorable is a bit of audio attached to a character in ''VideoGame/{{Starcraft}}''; when ''Starcraft'''s alpha was first shown to the public people accused it of just being "''VideoGame/{{Warcraft}}'' [[RecycledInSpace in space]]". Clicking on the character Artanis [[StopPokingMe repeatedly]] will eventually produce a series of exasperated [[BreakingTheFourthWall defences of the game's design]]:
--> "This is not ''Warcraft'' In Space!" "It's much more sophisticated." "I know it's not 3-D!"
** ''VideoGame/WorldOfWarcraft'' has:
*** The [[ Nova Shrine]]: A memorial to the [[{{Vaporware}} not-yet-officially-canceled]] ''Starcraft: Ghost'' spinoff game.
*** In ''Mists of Pandaria'' there's a ghost NPC in the Valley of the Four Winds who gives the player a low-quality woodcutting axe. The description mentions that it has "+15 Woodcrafting" etched into the handle, referencing a planned profession that was scrapped because its uses were too limited.
** ''VideoGame/DiabloIII'' has a rarely spawning dungeon called DevelopmentHell, with zombies named after the game development crew.
* ''Franchise/MortalKombat'' has a few in every game that involves a Konquest mode, and all appearances of characters like Rain who owe their existence to jokes between developers are essentially Development Gags.
** Way back in the early stages of the first ''VideoGame/MortalKombat'', Sub-Zero's {{code name}} was originally "Tundra." Come ''VideoGame/MortalKombat9'', it's revealed that the title of the younger Sub-Zero [[LegacyCharacter that took his fallen brother's place]] starting in ''[=MK2=]'' was Tundra before he took up the mantle of Sub-Zero to honor his brother.
** And of course, Ermac, after the oft-misunderstood abbreviation that the first game's debug menu used for "'''Er'''ror '''Mac'''ro."
** And of course [=MoKap=], the guy in the motion capture suit that some of the fighters were drawn over, and Meat, the bloody musculature under many of the polygons.
* ''VideoGame/StreetFighterAlpha 3'':
** One of Guile's winquotes is "No handcuffs? Fighting isn't what it used to be!" which is a reference to a glitch Guile had in the original ''VideoGame/StreetFighterII'' that "handcuffed" (froze/attached) him to the opponent. This also counts as a MythologyGag, as the glitch was rather famous and widely known about among fans, and is considered a part of one of the older games despite its glitchy status.
** Cody has several winquotes that refer back to his being a CanonImmigrant from another Capcom series, ''VideoGame/FinalFight'', including saying how good it is to have more than two moves and saying he'll take on "man, beast, or car", a nod to the first ''FF'''s infamous bonus stage.
** Birdie has a quote explaining that he was pale "before" because he was sick; this refers to the fact that the character was Caucasian in the original ''VideoGame/StreetFighterI'' and was {{Race Lift}}ed into being black in ''Alpha'' and onwards.
* In the Rusty Bucket Bay level of ''VideoGame/BanjoKazooie'', there is a picture of the original pink-furred brunette version of Berri from the aborted ''Twelve Tales: Conker 64'' (who did appear as a damsel in distress in ''Conker's Pocket Tales''). This EasterEgg only appears in the original N64 version; it's a picture of Conker in the [[UpdatedRerelease XBLA version]].
** In ''Banjo-Tooie'', Captain Blackeye, a character who was supposed to be the main antagonist in the early development of ''Banjo-Kazooie'' appears in a bar, drunkenly ranting about how a bear stole all his glory and how he "Had a dream", a reference to what the game was originally called.
** Portraits of Blackeye also appeared in ''Banjo-Kazooie's'' Mad Monster Mansion.
* In the library level of ''VideoGame/{{Metro 2033}}'' one of your squad mates pulls a book off the shelf and exclaims something along the lines of "Ahh, something familiar; ''Literature/RoadsidePicnic''." ''Roadside Picnic'' is the novel that inspired the ''VideoGame/{{STALKER}}'' series, which many of the ''Metro'' devs also worked on. It doubles as well in that anyone who's played ''VideoGame/{{STALKER}}'' is likely the find ''Metro'''s atmosphere very familiar, though the gameplay of the two games is quite different.
* When the developers of ''VideoGame/TheSecretOfMonkeyIsland'' created the sprite for the main character, he wasn't yet named so they saved the file with the name "guy.brush", ".brush" being the file extension for the graphics program and "guy" being, well. They eventually decided they liked the name, and so Guybrush Threepwood was born.
** The game also references its game engine, ''Script Creation Utility for Maniac Mansion'', with the in-game SCUMM Bar (which after the engine technology changed for the fourth game to Lua, was renamed after a hostile takeover by the game's antagonist to the "Lua Bar").
** The entire script of the first game could be considered a development gag; Ron Gilbert's original concept called for a more serious tone, but what with the way production works, Creator/TimSchafer and Dave Grossman found themselves with empty dialog slots in a game that needed testing, so they added their own silly placeholders. Gilbert thought these were so hilarious that he decided to completely overhaul the tone of the game and make it a comedy instead.
* The main character of the ''VideoGame/WingCommander'' games was referred to behind the scenes as "Bluehair," a reference to the [[YouGottaHaveBlueHair distinctive (apparent) color of his hair]]. When the series moved to full-motion video, making an official name necessary, he was given the last name "Blair."
* Jade's name in ''VideoGame/BeyondGoodAndEvil'' is a reference to more than just her obvious favorite color; in fact, she had it before she wore green ''anything'' (besides lipstick). It's a reference to the JADE Engine, the engine the game (and later, the 3-D ''Franchise/PrinceOfPersia'' games) was built in.
* ''VideoGame/{{Psychonauts}}'':
** During the ending, the original playable character of the game can be briefly seen in the background.
** Near the start of the game, Coach Oleander incorrectly guesses that the protagonist's name starts with a D, referencing the original protagonist D'Artagnan.
* The original playable character for ''VideoGame/{{Scribblenauts}}'' is available for viewing, if only you ask for it.
* Lewton in ''VideoGame/DiscworldNoir'' mentions that he was going to be an assassin, but it didn't work out. The early idea for the game was the further adventures of Teppic from ''Discworld/{{Pyramids}}'', an assassin.
* ''Franchise/SonicTheHedgehog'':
** The developers had created a much simplified early model for Sonic. This was revived and turned into the character Mighty the Armadillo for the arcade game and ''VideoGame/KnucklesChaotix''.
** The first game also has glowing letters reading "COPE" in the Spring Yard Zone, which is the acronym for one of the graphics processing routines used by the developers. If you go up high in Act 1 you can also see "UP ON CPU", whose meaning is less clear but may just be praise for the Mega Drive's capabilities.
** Before settling on a name for the blue hedgehog, the developers referred to him as "Mr. Needlemouse." The name was brought back for the publicity of ''VideoGame/SonicTheHedgehog4: Episode 1'': Prior to the reveal of the game's real name, it was referred to by its code name ''Project Needlemouse''. And the Sega blog, poking fun at the prior games' LoadsAndLoadsOfCharacters, jokingly suggested that "Sonic's new friend Mr. Needlemouse" might be a playable character in the game.
** One of the proposed designs for a Creator/{{Sega}} mascot was apparently supposed to be a caricature of UsefulNotes/TheodoreRoosevelt. As the creators also liked that character, they turned it into Dr. Ivo "Eggman" Robotnik.
** Sonic's standing pose in ''VideoGame/SonicAdventure'' is an unused standing pose from ''VideoGame/SonicTheHedgehog1''.
** Time-traveling was a concept first conceived for ''VideoGame/SonicTheHedgehog2'' but wasn't added into a game until ''VideoGame/SonicCD''. The unused Rock World Zone was the 'past version' of the more well-known Dust Hill Zone.
** Vector was originally supposed to be part of a rock band with Sonic in the first game. The concept was scrapped when they couldn't implement the characters in the game, as a sound test mode intended to show them had to be cut out due to memory limitations.
* In the beta version of ''VideoGame/{{Quake}}'', shooting a particular object in HubLevel opened the path to an EasterEgg ([[spoiler:[[VideoGame/CommanderKeen the DopeFish]]]]) located in the same level selection room. In the released version, the easter egg was moved to an actual level, and shooting the object in the start level displays an optional hint about its location.
* ''VideoGame/GhostbustersTheVideoGame'' mentions that one of the names for Slimer is "Onionhead" in his Tobin's Spirit Guide entry, and he's actually referred to by this name once in dialogue. This was his production name, and it had been dropped from {{Canon}} media until now, because it was tied to a similarly dropped character trait of his smelling terrible -- it was found to be too hard to convey in film.
* [[NoDeathRun Acing]] ''VideoGame/LittleBigPlanet'''s final level, [[spoiler: [[CollectorOfTheStrange The Collector]]]], unlocks a costume based on [[ Yellowhead]], the game's protagonist [[ in its beta ''Craftworld'' form.]]
* In ''VideoGame/{{Borderlands}}'', the concept art for main characters [[ Roland, Mordecai, and Lilith]] make their way into the game as [[ Dr. Zed,]] [[ Reaver,]] and [[ Commandant Steele,]] respectively.
* In ''VideoGame/HalfLife2'', you can see a rather [[ strange object in a jar]] at Black Mesa East, which Eli states that they "still don't know what it does". It's actually the head of a [[ Cremator]], a janitor-like enemy that was cut.
** During the pod ride in the Citadel, among the Striders and Gunships you see are the [[ Crab]] and [[ Mortar]] Synths, two enemies that were cut from the final game.
* In the Beta version of ''VideoGame/CaveStory'', the protagonist had red eyes and a blue outfit. When the finished game was ported to [=WiiWare=], an EasterEgg was added where [[HolidayMode if you play the game on Halloween]], the character's sprite is replaced with a zombified version--with red eyes and a blue outfit.
* During the ''VideoGame/GuildWars'' War in Kryta arc, Confessor Isaiah, the leader of the White Mantle (named after Isaiah Cartwright, the former leader of the skill balance team) has a skill called "Isaiah's Balance," which causes the next skill used by its target(s) to cost 25 energy and recharge in 90 seconds, reflecting an infamous skill nerf.
* Creator/{{Telltale|Games}}'s ''[[VideoGame/BackToTheFuture Back to the Future: The Game]]'' includes a development gag relating to the third movie. Marty is told by a descendant of Marshall Strickland (whom he met in 1885) that the Marshall had been shot in the back by Buford Tannen. Marty states that he doesn't remember that occurrence; the scene was filmed for the third movie, but ultimately deleted.
* The ''VideoGame/{{BioShock 2}}'' ARG "Something In The Sea" featured a character that visited Rapture then managed to return to the United States. The man then wrote a story about his experiences and submitted it to a science fiction magazine only for the editor to completely mangle the story into unrecognizability. One of the changes was turning the Little Sisters into chipmunk-like creatures, a reference to early concept art which rendered them as such.
** At the end of ''VideoGame/BioShockInfinite'' [[spoiler:Booker meets several alternate versions of Elizabeth. One of them uses the model first shown to players before she was redesigned. This early model can now been seen in the Clash in the Clouds DLC, along with a very early Handyman design that appeared in very early screenshots and the E3 2010 demo.]]
** An Enemy in the Burial at Sea DLC named Frost Splicer [[spoiler: was an incomplete enemy of the Shock Jockey-Vigor Junkie left in game files, It was repurposed for this DLC for an in-universe drink named Old Man Winter that the enemy is addicted to, that Booker and Elizabeth must fight.]]
* ''VideoGame/CrisisCore'': Angeal's design is based on an old concept idea for Cloud.
* While designing ''VideoGame/ResidentEvil2'', Capcom created a big white block as a simple polygon to test the game's hit detection. By the time had come for the game to go gold, the block was further defined into the protagonist of the minigame "The Tofu Survivor". ''Resident Evil 3'', built in the same engine, also has Tofu DummiedOut, while ''The Darkside Chronicles'' contains another minigame where the player runs around blasting hulks of tofu as a ShoutOut.
* In ''VideoGame/TimeShift'', the "Alpha Suit" worn by the main antagonist (established as the prototype of the "Beta Suit" worn by the protagonist) is based on the design of the protagonit's suit in the early steampunk inspired version of the game (which was then massively overhauled).
* In ''VideoGame/DragonAgeOrigins'', talking to Shale reveals she used to be 10 ft tall (like other golems) until her owner took a ''chisel'' to her and carved her down to her current size because she couldn't fit through doors. This is the exact same reason why the developers had to shrink down her original model since early playtesting saw her frequently get stuck.
** In ''VideoGame/DragonAgeInquisition'', at one point [[spoiler: Hawke]] mentions that they feared the Chantry was planning an Exalted March against Kirkwall, but it ultimately didn't happen. This was the premise of a planned but cancelled "Exalted March" expansion pack for ''VideoGame/DragonAgeII'', and much of the plot for said expansion pack wound up in ''Inquisition'' anyway.
** The name of the continent where the game is set itself is a DevelopmentGag: "Thedas" was an internal shorthand for "'''The''' '''D'''ragon '''A'''ge '''S'''etting" that ended up sticking.
* ''Franchise/{{Pokemon}}'':
** An old artwork for Poliwhirl/Poliwrath shows it wearing a crown; in Generation II, the crown-like King's Rock gives Poliwhirl access to the alternate evolution Politoed.
** Gastrodon's ''Platinum'' Pokédex entry mentioning it previously having a rocky, sturdy shell comes from its beta sprite.
** Leaf, the female protagonist of ''Firered'' and ''Leafgreen'', is a redesign of an apparently unused female protagonist from ''VideoGame/PokemonRedAndBlue''.
** Tirtouga greatly resembles an unused Pokemon from gen 2.
** On the subject of Generation 2, ''VideoGame/PokemonGoldAndSilver'' were originally going to contain a skateboard in addition to the bicycle; an idea that ultimately never made it into the final game. Years later in ''VideoGame/PokemonXAndY'', the player character is given roller skates in addition to getting the bike later on.
** Originally, Professor Oak was going to be the final battle before becoming the Champion in ''VideoGame/PokemonRedAndBlue''. Twenty years later, in ''VideoGame/PokemonSunAndMoon'', [[spoiler:the final battle is against the Alola region's own Professor, Kukui]].
* ''Franchise/TheLegendOfZelda'':
** Sheik's redesign in ''VideoGame/SuperSmashBros Brawl'' is based on a design made during the development of ''VideoGame/TheLegendOfZeldaTwilightPrincess'', which is why it matches the art style of said game.
** The Horse Call in ''[[VideoGame/TheLegendOfZeldaTwilightPrincess Twilight Princess]]'' dates back to ''[[VideoGame/TheLegendOfZeldaOcarinaOfTime Ocarina of Time]]''. It was originally a Reed Whistle but was scrapped in favor of Epona's Song. From the same game, the Hero's Shade teaching you moves is similar to an unused concept for ''[[VideoGame/TheLegendOfZeldaMajorasMask Majora's Mask]]'' where Link learned skills via cutscene.
** ''VideoGame/TheLegendOfZeldaTheWindWaker'' uses various unused concepts from ''VideoGame/TheLegendOfZeldaOcarinaOfTime''. It's speculated that Fado the wind sage is a reference to Fado from ''[=OOT=]'', who seems to have had been a sage in development instead of Saria. There are also some DummiedOut temples and other elements from earlier stages of ''Ocarina Of Time'' that were retooled in ''Wind Waker''.
** The E3 announcement trailer for ''WesternAnimation/TheLegendOfZeldaTheWindWaker'' shows that Link originally had a sneaking ability for stealth portions of the game. It was replaced with hiding inside barrels. Years later ''VideoGame/TheLegendOfZeldaBreathOfTheWild'' implemented a stealth ability.
* In ''VideoGame/BatmanArkhamCity'', two mooks will discuss a rumor that Harley Quinn used to be a man. Rocksteady motion-captured Quinn with a male actor, and even posted a fake reveal of this to tease fans.
* Some of the many voiceovers introduced by the Perpetual Training Initiative DLC in ''VideoGame/{{Portal 2}}'' are from an AlternateUniverse Cave Johnson who got his consciousness transferred to a computer, only to later start musing about the metaphysical implications of this and asking "What if injecting my consciousness into a computer robbed me of an eternal reward?". This is a reference to a [[ very early version of the script]] where Johnson was going to be the BigBad.
* In the final version of ''VideoGame/{{Fallout 3}}'', at the end of the ''Wasteland Survival Guide'' questline, your character can sarcastically ask Moira Brown if, with you having done virtually all the legwork and research for the ''Guide'', Moira wants you to find a publisher, too. She cheerfully replies that won't be necessary. Guess what you had to do in one prerelease version of the questline.
* In ''VideoGame/{{Minecraft}}'', one of the most iconic enemies, the Creeper, was originally meant to be a model for a pig. However, the model was botched but to date, it is kept in the game as aforementioned Creeper.
* In ''VideoGame/KillingFloor'', one of the pinned-up newspapers reads "SUSPECTED CULT" and shows a picture of the clots from the original mod.
* When you enter the modern or the future era in ''[[VideoGame/{{Civilization}} Civilization 4]]'', you get an image of a digital clock with a brand "Soren" showing the time 5:23. This refers to Soren Johnson, one of the game's main developers, whose birthday is on May 23rd.
* ''VideoGame/KirbyMassAttack'' takes place on the Popopo islands. The original concept for ''VideoGame/KirbysDreamLand'' was a game called ''Twinkle Popopo''.
* For ''[[VideoGame/BitTrip BIT.TRIP Presents... Runner2: Future Legend of Rhythm Alien]]'', protagonist [=CommanderVideo=] (who was a {{minimalis|m}}t {{retraux}} [[ figure]] in the main ''BIT.TRIP'' series) was originally going to be [[ redesigned]] by [[ Ty Dunitz]]. When problems came up trying to get the character model to work, the planned redesign was changed to [[ this]]. Dunitz's design still managed to make it into the game as the unlockable character [=CaptainVideo=].
* ''VideoGame/FireEmblemAwakening'' has Paris, the final [=SpotPass=] character who proclaims himself to be [[spoiler:[[VideoGame/FireEmblemTellius Ike's]] descendant and wields his trademark Ragnell.]] His name is [[spoiler:what Ike had for a code name during early development of ''Path of Radiance'']]. The English language localizations [[LostInTranslation lose this]] by renaming him Priam, though this sets up a different case of ShoutOutThemeNaming, as [[UsefulNotes/TheTrojanWar Priam, King of Troy, had a son named Paris]].
* In ''VideoGame/MassEffect2'', among the character Jack's many tattoos are images of several punkish-looking women. While the official art book claims they're former members of gangs she was in that were murdered, behind the scenes, they're [[ concept art sketches]] [[ from when Jack was being designed]].
** In ''VideoGame/MassEffect3'', after the Grissom Academy mission and meeting Kahlee Sanders, James Vega mentions that his estranged father's last name was Sanders but that he's not related to Kahlee. Originally, James' last name ''was'' going to be Sanders, but it was changed to Vega because Kahlee Sanders had already existed since ''Literature/MassEffectRevelation''.
* ''VideoGame/BrokenAge'' has Curtis the lumberjack as a character who is afraid of trees (they keep screaming at him). He was originally nothing more than a test of the art-style of the game and later a place-holder to see how the game was to be controlled and played. He was dubbed the "hipster lumberjack" by the devs and became so popular with the community that they demanded he be in the game when it was revealed he wasn't.
* Early versions of the TC_Inferno map for ''[[Videogame/MechWarrior MechWarrior Living Legends]]'' had an odd runway for the {{Space Plane}}s, where the vehicle factory was off to the side of the runway, with a concrete wall on the other side, requiring players to taxi onto the runway then turn before taking off. Most of the [[UsefulNotes/BetaTest Alpha Testers]] would simply mash the afterburner key the instant they got into the plane and then plow into the concrete wall at 400kph. The level designer then replaced the hint screens in the spawnroom with his own hints, saying things like "DO NOT TAXI INTO RUNWAY" or "DO NOT FLY INTO LAVA", depicting planes plowing into the wall or landing in lava, though the screens sadly didn't make it into the final release and were instead highlighted in a HilariousOuttakes thread.
* Many of [[DittoFighter Double's]] attacks in ''VideoGame/{{Skullgirls}}'' use assets or conceptualisations from other characters' movesets that were abandoned during development.
** One of Ms. Fortune's alternate palettes is the colour scheme of her original character design.
* ''VideoGame/StarFoxZero'' for the UsefulNotes/WiiU brings back the "transforming vehicles" aspect that was originally planned for the cancelled ''VideoGame/StarFox2'' nearly 20 years prior. This fact was even acknowledged by Creator/ShigeruMiyamoto during the game's debut at E3 2015.
* In ''VideoGame/GoldenSunTheLostAge'' there are several hints in the game files, particularly the order of character portraits, that suggest [[MagnificentBastard Alex]] was supposed to be the final party member instead of [[ReallySevenHundredYearsOld Piers]]. This culminates in a small chat when the party meets up with Alex after Piers joins the party, where Alex makes a subtle remark about "being replaced."
* In ''VideoGame/{{Bombshell}}'', the fact that Shelly "Bombshell" Harrison is stated to hate bubblegum and sunglasses gains additional meaning if you know that the game was originally supposed to star VideoGame/DukeNukem, who is associated with both those things.
* ''Franchise/CrashBandicoot'':
** Tiny Tiger and the Komodo Brothers were supposed to appear in the first game however were held back until the second title.
** Nitrus Brio is based on concept art for Neo Cortex.
** The model for the Lab Assistant enemies in the first game was listed in the original game's code as obj_ass ("ass" being short for "assistant"). After the developers realized this, they thought it was funny and decided to give them even more profane model names in the next game's code, like obj_asshole and obj_motherfucker.
** Similarly, Crash's model is consistently listed as obj_willy, as opposed to obj_crash. This is in reference to Crash's prototype name, Willy the Wombat.
* While localising ''VideoGame/TheLegendOfHeroesTrailsInTheSky'', XSEED ran into a series of bizarre glitches, one of which included random bits of text suddenly changing size. An example given in [[ a pre-release dev blog]] showed Estelle describing Olivier as "a total weirdo, but his gun skills are legit", with the word "legit" blown up to roughly twice its original size. The blogger commented that, given that this was [[CloudCuckoolander Olivier]], in a just world the word "weirdo" would be the one getting emphasis. Lo and behold, in the final version of the game in that very text box, the giant text remains, but this time it's "total weirdo" that's blown up instead (with Olivier immediately commenting on the strange emphasis afterwards).
* In ''VideoGame/CarriesOrderUp'', one of [[AndYourRewardIsClothes the unlockable palettes]] is "Classic", a pale green dress worn by Carrie in a comic drawn by the developer.
* On April Fool's Day, the developers of ''VideoGame/AviaryAttorney'' [[ "announced"]] that they were going to produce a game called ''Axolotl Accountancy'' instead. In the game, one character tells you the following:
--> '''Judge Maxime:''' When I awoke, I had a mild case of amnesia. I thought I was an axolotl accountant!
* Poppy's passive ability in ''VideoGame/LeagueOfLegends'' is named Iron Ambassador, a reference to her character title before her total rework in late 2015.
** Sion's joke when near his ally Urgot refers to how Sion also went a total redesign:
-->''So, uh, Urgot, we can't hang out anymore. I'm cool now.''
* In ''Knight-Tyme'', one of the first games released for the 128k UsefulNotes/ZXSpectrum, the ship's computer is called Derby IV. "Derby" was the development codename for the 128k Spectrum itself.
* ''VideoGame/TransformersDevastation'' has Shockwave perform a DoppelgangerAttack in his boss fight. The [[WesternAnimation/TheTransformers original series]]' production bible described him as having the ability to duplicate himself, but it never made it into the show proper.
* ''VideoGame/MinecraftStoryMode'': The Order of the Stone is actually an old subtitle for what would become Minecraft, with the full title being "Minecraft: Order of the Stone"
* The earliest known footage of ''VideoGame/{{Undertale}}'', revealed in a forum post released in February 2014 (over two years before the game's release), includes [[ a screenshot]] where the [[HelloInsertNameHere name of the fallen child]] is conspicuously shown as "Chara." What most would assume is [[GenericName a placeholder name (an abbreviation for "Character")]] is in fact the ''only'' hint creator Music/TobyFox ever gave of the [[spoiler:significance of the name Chara, which is the CanonName of the fallen child -= the ''original'' fallen child who was taken in by Toriel and Asgore years ago.]] In fact, without this added bit of context, [[spoiler:most players would assume that they're naming the PlayerCharacter on the naming screen, who is instead later revealed be named Frisk.]]
** The same forum post contains a few humorous misdirections about the story of ''Undertale'', such as that [[AWolfInSheepsClothing Flowey]] will "help you many times along your journey" and that the game is about using ThePowerOfLove to save the world. That second part becomes [[spoiler:either HilariousInHindsight or HarsherInHindsight after you learn that LOVE, in the world of ''Undertale'', [[FunWithAcronyms does not refer to love]] but rather to KillingIntent, and is in fact used to ''[[TheEndOfTheWorldAsWeKnowIt destroy]]'' the world in one ending.]] Similarly, [[spoiler:Flowey [[ExactWords really does help you throughout your journey]] -- but only if you're pursuing the [[KillEmAll Genocide route]].]]
* ''Franchise/MetalGear'':
** ''VideoGame/{{Metal Gear Solid 2|SonsOfLiberty}}'' was originally meant to feature Oldboy and Chinaman, two extra bosses as members of Dead Cell. They hung around long enough that a boss arena was built for Chinaman (the area later used for Vamp's boss fight). Oldboy and Chinaman appear briefly in the flashback artwork showing the dissolution of Dead Cell, both shown dying -- with Vamp, the character who inherited many of Chinaman's powers, holding him in his arms. Oldboy's concept was later recycled in part for The End in ''VideoGame/{{Metal Gear Solid 3|SnakeEater}}''.
** The Fear in ''Metal Gear Solid 3'' is based on a rejected concept for Raiden, one so far off-base that it was possibly even a joke. The early Raiden also liked to lick bird droppings, and while this was immediately rejected, bird droppings make a prominent appearance in Raiden's intro area in ''2'' as a reference to this.
** The motif in ''[=MGS3=]'' and ''[[VideoGame/MetalGearSolid4GunsOfThePatriots 4]]'' with ([[LegacyCharacter a]]) Snake appearing at The Boss's/[[GenerationXerox Big Boss]]'s grave is based partially on an unused scene concept for the original ''VideoGame/MetalGearSolid'', where Snake would have visited Big Boss's restored remains. The civilian outfit designed for the scene [[RefittedForSequel was used as the basis for]] Snake's civilian outfit in ''4''.
** Raiden's MissionControl in ''[[VideoGame/MetalGearRisingRevengeance Revengeance]]'', Doktor, Courtney and Boris, are based on Doc, Max and Quinn, who had been created to be Raiden's contacts in ''[=MSG2=]''. All had been cut with most of their significant actions [[CompositeCharacter composited into the Colonel, Rosemary and Emma]].
* ''Franchise/FinalFantasy'':
** Shadow and Setzer in ''VideoGame/FinalFantasyVI'' are based on ideas that Creator/TetsuyaNomura had for Jobs for ''VideoGame/FinalFantasyV'' -- a Gambler, and a variant on the Ninja accompanied by a dog. Setzer's design is also based on the unused ''V'' concept of "Eva Schweriz," a glamorous lady gambler and airship pilot, who was eventually adapted into {{Bifauxnen}} pirate Faris Schweriz due to difficulty fitting her character into the setting.
** ''VideoGame/FinalFantasyVII'' and ''Compilation'':
*** Zack was based on a rejected early design for Cloud -- which fits, as certain characters treat Cloud as a replacement for Zack and Cloud himself has troubles separating his own identity from the other's. Anghel from ''VideoGame/CrisisCore'' is based on a different rejected early design for Cloud.
*** Notice that Yuffie's outfit is similar to Cloud's, with the ribbed polo neck and the shoulder guard? That's a hangover from her original concept of being a SOLDIER 2nd Class.
*** Aeris/[[SpellMyNameWithAnS Aerith]] and Sephiroth were originally intended to have a much closer connection -- first as siblings, then as former lovers. Nothing of this remains in the story besides some striking similarities in character design - hairstyles, silhouettes and wrist bands. (It perhaps ends up giving the impression that Cloud has a bit of a Type.)
*** Genesis' design in ''VideoGame/CrisisCore'' contains elements from early Sephiroth art, such as the use of the conventional SOLDIER top underneath the longcoat. His InkSuitActor factor is a reference to a ComicBookFantasyCasting controversy in ''VideoGame/FinalFantasyVIII'' where the hero's face ended up being so similar to Music/{{Gackt}} that it breached likeness laws.
** The original game intended to be ''Final Fantasy VII'', the one set in New York and featuring a detective, was scrapped when ''VideoGame/ChronoTrigger'' required help in development. Cloud and Barret were designed as GoldfishPoopGang characters on this game, but seemed striking enough to the team that a new project was launched using them as main characters.
** ''VideoGame/FinalFantasyXV'':
*** ''XV'' was first announced as a spinoff called ''Final Fantasy Versus XIII'' in 2006. It was rebranded as a main series entry in 2013 and finally released in late 2016, ten years after it was announced. 13 is still treated as an ArcNumber of sorts, there are some oblique references to ''XIII''[='s=] mythology, and [[spoiler:Noctis ends up entering a stasis of sorts for ten years]] before the game's final chapter.
*** The "SAF" motif on the boats of the Imperials is an injoke reference to the placeholder name "[[OneMarioLimit General Safay Roth]]", an early version of the character who became Ardyn. Supposedly the logo is 'to honour the great generals of the past'.
* ''VideoGame/SuperSmashBros'':
** [[LimitBreak Final Smashes]] were intended to be included in the original UsefulNotes/Nintendo64 game, as evidenced by [[DummiedOut unused audio files]], but weren't added in until ''Super Smash Bros. Brawl'' on the UsefulNotes/{{Wii}}.
** [[Franchise/SuperMarioBros Bowser]], [[VideoGame/PokemonRedAndBlue Mewtwo]], and [[Franchise/{{Kirby}} King Dedede]] were meant to appear in the first installment but were held back for various reasons. Bowser and Mewtwo were added in the sequel game, ''Melee'', while Dedede was added in the third game, ''Brawl''.
* Quite a few UsefulNotes/NintendoGameCube titles have dolphins in them due to the fact the [=GameCube=]'s code name was "Dolphin." A well-known yet subtle example is ''VideoGame/SuperMarioSunshine'', which takes place on Isle '''[[BilingualBonus Delfino]]'''; true to [[GratuitousItalian its name]], the island resembles a dolphin.
* [[Disney/TheLionKing The Pridelands]] and Disney Castle were intended to be included in ''VideoGame/KingdomHeartsI'' but were held back until [[VideoGame/KingdomHeartsII the sequel]] due to time and troubles implementing four-legged characters.
** In addition Chernabog is a left over from the original final boss fight. Originally he was the source of all heartless and you would fight him until Kingdom Hearts rose and "Ava Maria" played, much like Night on Bald Mountain. Until they realized that the [=PS2=] engine could not actually do that. Chernabog was thrown in as a penultimate boss fight and the rest was scrapped. (though Birth By Sleep may have borrowed some of it for the Keyblade Graveyard final battles)
* ''VideoGame/LuigisMansionDarkMoon'' was released for the UsefulNotes/Nintendo3DS. [[VideoGame/LuigisMansion The first game]] was released for the [=GameCube=] which was originally going to be able to produce 3D graphics.
* In ''VideoGame/SpongeBobSquarePantsBattleForBikiniBottom'', Patrick's Dream consists of a black void with him under a spotlight, and he just gives you a Golden Spatula when you talk to him with no strings attached. While this is a MythologyGag to the show, it is also a reference to the original plan for Patrick's Dream: A LevelAte that is DummiedOut in some versions of the game. The final version of the level can be seen as SelfDeprecation on the developer's part for not completing the level.
* In ''[[VideoGame/Persona2 Persona 2: Innocent Sin]]'', Principal Hanya's unique attack is named "Dark Young Legend", which was one of the suggested subtitles for the game itself.
* In the PSP title ''VideoGame/MedievilResurrection'', [[ExpositionFairy Al-Zalam]] and the [[MacGuffin Anubis Stone]] are both elements that [[WhatCouldHaveBeen would have originally featured in the never-made PS2 game]] ''Medieval 3: Fate's Arrow''. The minigame "Arrow o' Fate" is also named after the cancelled title.
* Karmic Transformer 9 from ''VideoGame/{{Okami}}'' trades in Amaterasu's cel-shaded appearance for a realistically lit and rendered wolf, a nod to how the game's original concept video had ''the entire game'' being rendered realistically.
* When ''VideoGame/EternalDarkness'' was still being planned for the Nintendo 64, one of its playable characters was Joseph de Molay, a Templar Knight. His chapter ended up being scrapped in the final product, but when you find Roberto Bianchi's chapter page, you're given a short scene of Pious threatening a knight who can see his true form as a liche; he's merely credited as "Defeated Knight", but this was actually a repurposed Joseph.

[[folder:Web Animation]]
* Pom Pom's dog, Trivia Time, and Homeschool Winner were both characters that were created for ''WebAnimation/HomestarRunner'' but never quite materialized; this didn't keep subtle references to Homeschool Winner from cropping up in a few toons, and Trivia Time is officially Pom Pom's pet cookie jar.
* ''WebAnimation/DSBTInsaniT'' '''thrives''' on this trope! Watching the Special Info Episode will make many of these gags easier to understand.

* The first ''[[Webcomic/TheOrderOfTheStick Order of the Stick]]'' published book, ''Dungeon Crawlin' Fools'', has an author's commentary in which it is noted that the party's leader, Roy Greenhilt, was originally supposed to be a SquishyWizard and occupy TheSmartGuy role. The author decided that it wouldn't work out to have him be both that and the OnlySaneMan, so Roy became a fighter and the [[SesquipedalianLoquaciousness sesquipedalian]] Vaarsuvius was introduced. This makes the strips in which we learn that Roy's father is bitterly disappointed in him for not becoming a wizard doubly funny.
** Another commentary reveals that Roy's misadventure with the Belt of Gender Changing was originally going to be him intentionally donning it to secretly engage in "girl talk" with Miko and learn more about her, only to discover later that he couldn't remove the belt. In the comic he only puts it on as an emergency disguise to help save Elan's life. When Haley finds out, she mocks him and one of her jokes is that this was him trying to impress Miko.

[[folder:Web Games]]
* Franchise/{{LEGO}} ''Backlot'' has a {{cameo}} of [[Toys/{{Bionicle}} Takua]] drinking coffee and [[AnimatedActors reading the script for]] a ''BIONICLE'' movie. The script reveals his name is George, which was the early working name used for Takua in the ''Mata Nui Online Game''.

[[folder:Web Original]]
* NewMedia web shows like ''WebVideo/YuGiOhTheAbridgedSeries'' often have the characters, who are played by guys who are usually all friends, make jokes about the actors playing them and, occasionally, about events that happened during the making of the show. Most times, these references are either explained or funny enough that it doesn't matter.
* In the comments to [[ an Arc 13 Interlude chapter]] of ''Literature/{{Worm}}'', a chapter in which Imp (a teammate of the protagonist) uses her PerceptionFilter superpower to spy upon the Slaughterhouse Nine (a band of supervillain {{Serial Killer}}s), the author mentions Imp's inspiration: [[spoiler:a member of the earliest draft of the Slaughterhouse Nine called "Nice Guy"]] whose power was to be [[TheNondescript the guy you would never suspect]], fading into the background until he could cut your throat without your even considering him a suspect. Which makes it hilarious in [[ the first chapter of Arc 26]] when [[spoiler:a [[CloningBlues resurrected]] ex-member of the Slaughterhouse Nine called "Nice Guy"]] starts using his power on the heroes (and {{Anti Villain}}s) to divert suspicion from himself in preparation to killing them, and Imp takes him out with the BondOneLiner "My schtick."

[[folder:Western Animation]]
* ''WesternAnimation/AvatarTheLastAirbender'':
** Avatar Roku takes Aang on a spiritual journey, in which Aang learns about Roku's life, and about how strong friendships can transcend spirit and time, but anyone is capable of evil or good. After the revelation, Toph makes a point of asking Aang whether he thinks that friendships can truly transcend lifetimes. It's a thought-provoking philosophical question, but it's mostly also a reference to the fact that some of Toph's development designs (originally a ''large man'') were used to create ''Roku'''s Earthbending teacher.
** Katara and Sokka's mother's name is revealed to be Kya, which was Katara's name in the pilot. Taking it one step further, after the creators found out they couldn't use the name Kya but before they named her Katara, they called her Kanna: currently the name of their grandmother. And in the sequel series ''WesternAnimation/TheLegendOfKorra'' [[DeadGuyJunior Katara and Aang's daughter]] ends up with the name Kya.
** The poster for "[[WhoWouldWantToWatchUs The Ember Island Players]]" is based on the cover for the Book 1 DVD, and the play itself had another joke about Toph's original design as she is portrayed as a large man. And how the poster (and the Book 1 DVD cover!) put Zuko's scar on the wrong side of his face.
** The first season finale has the Water Tribe using an ancient and [[SpikesOfVillainy super-pointy]] Fire Navy uniform for infiltration purposes that is based on the Fire Nation designs from the pilot.
** Also from the original pilot, Zuko was going to have a pet messenger hawk who would be something of an EvilCounterpart to Momo. Then Sokka got one in season three.
* Creator/WaltDisney had an obscure character named [[ Mortimer Mouse]]. Disney had first considered calling Mickey "Mortimer". He actually resurfaced in the ''WesternAnimation/HouseOfMouse'' series as Mickey's romantic rival--and he reminds one quite a bit of a Mickey parody by the same name that appeared in ''ComicStrip/BloomCounty''.
* ''WesternAnimation/TheSimpsons'': In "There's No Disgrace Like Home", Bart mistakenly gets called "Brat" by Mr. Burns. Creator/MattGroening picked the name "Bart" because it was an anagram of "brat", which he found fitting for his AuthorAvatar.
** One of the earliest ideas Creator/MattGroening had for ''WesternAnimation/TheSimpsons'' was to have Homer moonlighting as Krusty the Clown (notice that the two characters have near-identical proportions and similar designs), the irony being that, while Bart was dismissive of his father, he idolized Krusty, unaware that he ''was'' his father. The episode "Homie the Clown", which has Homer becoming a Krusty doppelgänger, is this concept coming full circle.
* ''WesternAnimation/FriskyDingo'': the title itself is one of these, referring to an insult Killface would have taunted the Xtacles with as they were originally called Whiskey Tango Six in early incarnations.
* One episode of ''WesternAnimation/DannyPhantom'' has the titular character riding a motorcycle, a vehicle Hartman wanted him to ride during early developments of the show (back when Danny was a normal teen hunting ghosts).
* In ''WesternAnimation/TransformersAnimated'', Rodimus Prime's briefly appearing team of Autobots consist of ''Animated'' versions of Transformers characters that the members of the main cast were originally supposed to be based off of (Hot Shot who became Bumblebee, Red Alert who was replaced by Ratchet, and Rodimus himself who was renamed Sentinel Prime at the request of Hasbro).
* Quite a few examples from the ''WesternAnimation/TotalDrama'' series:
** All of the interns from the first three seasons are recycled from the concept designs for DJ, Cody, Katie, and Tyler.
** In ''Revenge of the Island'', one member of the second generation cast, B, is also recycled from DJ's concept design.
** [=LeShawna=] had two concept designs. The second one was recycled into her cousin, Leshaniqua, who shows up in "One Flu Over the Cuckoos".
** The Queen Bee's eyes, body shape and outfit are recycled from Eva's concept design, while her name, "Heather", was originally given to the loner who would eventually become [[{{Goth}} Gwen]]. Also, Heather's alliance with Lindsay is a throwback to how the former's BigBad role in ''Island'' was originally played by the latter.
** In ''Island'', Gwen forms a platonic friendship with Geoff. In the show's pre-production stages, they were love interests.
** In ''Action'', Gwen and Trent are split up and forced to form opposing teams against each other. In the show's pre-production stages, there seemed to be an actual enmity between the two.
** Courtney's eyes and freckles are recycled from Bridgette's concept design, while Noah shares a few visual similarities with Ezekiel's concept design.
** In the Aftermath episodes, the silhouettes of several concept designs can be seen in the audience.
** In ''Action'', Sadie's concept design is recycled into a paparazzi cutout and, later, into Justin's ex-girlfriend.
** In ''Ridonculous Race'', a pair of twins are recycled from Cameron's concept design.
** Zoey's final design is recycled from Dakota's concept design, while the hairstyle of Staci's final design is similar to that of Zoey's concept design.
* ''WesternAnimation/CodenameKidsNextDoor'': In Operations "Pool" and "Caramel", we see Numbuh 5 wearing glasses (in the "Pool" case, an alternate universe version thereof), in contrast to her regular appearance. This is a reference to her wearing glasses in the pilot (at one point, the CN website for the show even mentioned that she wears glasses).
* In ''WesternAnimation/JimmyTwoShoes'', there are several pictures around the Heinous Manor of [[{{Satan}} Lucius]] in his concept art's outfit as opposed to his ordinary one. In another episode, Jimmy wears a bowtie, which was part of his concept suit.
* ''WesternAnimation/Ben10'' has the WhatIf episode "Goodbye and Good Riddance" end with cousins Ben and Gwen becoming classmates. This is reference to them being best friends and classmates when the show was early in development, with their relationship changing to cousins later on.
* In ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** In a flashback we get to see Twilight Sparkle's parents. Her mother bears a more than passing resemblance to Lauren Faust's original design for Twilight herself, back when she was meant to be the same character as Twilight (no last name) from the first-gen series.
** One of the photos of Fluttershy pinned to the wall of Photo Finish's studio in "Green Isn't Your Color" is essentially Lauren Faust's concept art of earlier-generation pony Posey, except with wings and an altered cutie mark.
** In "Family Appreciation Day" we get a flashback featuring a young Granny Smith, who looks just like an alternate version of Applejack that Creator/LaurenFaust drew for the series' pitch bible.
** In "The Last Roundup", one of the pictures the other characters use while trying to find Applejack is based off a different concept sketch of her.
* One episode of ''WesternAnimation/{{Futurama}}'' shows Leela's maternal grandmother, [[spoiler: a mutant with a normal arm and a tentacle]] - which the developers originally planned to give to Leela's ''mother'', [[spoiler:who instead has two tentacle arms.]]
* ''WesternAnimation/ThePowerpuffGirls'' had one episode where the Professor dreams he hadn't [[FreakLabAccident accidentally added Chemical X]] when creating the girls, resulting in the "Run of the Mill Girls", who had no superpowers nor the Girls' [[TheNoseless unusual]] [[FingerlessHands features.]] The designs used were heavily based on unused redesigns that Craig made early in the show's development, in response to test audiences had a very negative response to the characters.
* In the ''WesternAnimation/{{Beetlejuice}}'', there was a rather gross one: evidently, Beetlejuice's fingers are red because of a sexual drawing one of the animators did.
* The protagonist of ''WesternAnimation/CaptainNTheGameMaster'' was originally pitched as a newspaper delivery boy named Buddy. Once the Season Two ''VideoGame/{{Paperboy}}'' episode came around, the design was re-used for the character Julio.
* The Justice League's public liaison, Catherine Cobert, was originally slated to appear in the first episode of ''WesternAnimation/YoungJustice''. She got as far as having a character design and a voice actress record her dialogue before she was axed for time considerations, but she survived in two small ways: first, hers is the voice of the Justice League's computer-- it's her voice announcing "Recognized: Robin B-Zero-One," etc. Second, her character design was given blonde hair and repurposed as reporter Cat Grant. She eventually made an appearance in the first episode of ''season two,'' with a new character design, the same voice actress, and... talking to Cat Grant.
* ''WesternAnimation/SonicUnderground'' could be considered one big development gag, as the idea of ''Franchise/SonicTheHedgehog'' as the guitarist in his own rock band originated from one of many scrapped ideas from the character's early development.
* ''WesternAnimation/TheLittleMermaid'' featured a turtle named Clarence, who was first devised for [[Disney/TheLittleMermaid the movie]] as King Triton's advisor before being replaced by Sebastian.
* In ''WesternAnimation/BeastWars'', Inferno was originally conceived as a new body for Megatron. The show made him a distinct character, but the scrapped idea was referenced in one of the early Season 2 episode, where Megatron in his actual new body collides with Inferno mid-air, and they briefly end up switching heads. Inferno is amused, Megatron not so much.
* A ''WesternAnimation/StarTrekTheAnimatedSeries'' episode features Robert April, the first captain of the ''Enterprise''. The name was indeed one of the options Creator/GeneRoddenberry considered for the TOS captain, before he settled for Pike (and eventually Kirk). Canonically, he was the captain of the Enterprise before Pike and he is represented in the Star Trek Encyclopedia with an image of Roddenberry himself wearing a uniform.
* Russell Ferguson from ''WesternAnimation/LittlestPetShop2012'' originally had a first name of Winston, which would become the surname of a one-shot character in the episode "In the Loop" who frequently got on Russell's nerves.
* The ''WesternAnimation/BatmanTheBraveAndTheBold'' episode "The Super Batman of Planet X!" featured a robotic butler named Alpha-Red, a play on Batman's BattleButler Alfred. This is a nod to an {{Animesque}} Batman show that Creator/BruceTimm had pitched after ''WesternAnimation/BatmanBeyond'', which would have featured an A.I. Butler named Alpha-Red.
* In ''WesternAnimation/TheLoudHouse'', Lincoln's stuffed rabbit doll Bun-Bun is based on his original design from when the show was going to be about a family of rabbits.
* Wanda's name in ''WesternAnimation/TheFairlyOddparents'' was originally "Venus", however they opted for a PunnyName instead. [[ThemeNaming All fairies]] were meant to have space related names. Cosmo is the only major fairy that kept the original theme. Wanda's middle name is "Venus" as a reference to her original name.
* The ''WesternAnimation/SpongebobSquarepants'' episode "Squeaky Boots" had Mr. Krabs say, "Spongeboy, me Bob!". Spongeboy was an early idea for the main character's name.