History Main / AdaptationExplanationExtrication

* ''Theatre/HelloDolly'': When Horace Vandergelder gets angry enough at Dolly Levi to FullNameUltimatum her, he uses her maiden name, Dolly Gallagher. In ''Theatre/TheMatchmaker'', Dolly and Horace were old friends who'd known each other for years before either was married the first time, but none of the refences to that aspect of their backstory made it into the musical version.

** The dubbed version removed the mention that the Duelist Kingdom tournament only lasted 48 hours and the duelists only had until sunset of the second day to gain ten star chips. This was why, [[Recap/YuGiOhAnimeS1E24FaceOffPart3 after Yugi lost to Kaiba and he took half his star chips]], the gang [[Recap/YuGiOhAnimeS1E25ShiningFriendship was so hard-pressed to get more for him]] rather than simply have Yugi find another challenge.

** The dubbed version removed the mention that the Duelist Kingdom tournament only lasted 48 hours and the duelists only had until sunset of the second day to gain ten star chips. This was why, [[Recap/YuGiOhAnimeS1E24FinalFaceOffPart3 after Yugi lost to Kaiba and he took half his star chips]], the gang [[Recap/YuGiOhAnimeS1E25ShiningFriendship was so hard-pressed to get more for him]] rather than simply have Yugi find another challenge.

** The dubbed version removed the mention that the Duelist Kingdom tournament only lasted 48 hours and the duelists only had until sunset of the second day to gain ten star chips. This was why, after Yugi lost to Kaiba and he took half his star chips, the gang was so hard-pressed to get more for him rather than simply have Yugi find another challenge.

* In ''Anime/FateGrandOrderAbsoluteDemonicFrontBabylonia'' there's a scene where we see Babylonian priestesses summoning the Goddess Ishtar into a local girl's body via a ritual. The fact that said girl looks exactly like series regular [[VisualNovel/FateStayNight Rin Tohsaka]] is never addressed, leaving the viewer to speculate she had a very distant identical ancestor in the Middle East. In the original ''VideoGame/FateGrandOrder'' game Ishtar looks exactly like Rin because she ''is'' Rin, or rather Ishtar possessing her body so she can be summoned as a Servant, usually impossibly for a God to do.

* In ''Anime/FateGrandOrderAbsoluteDemonicFrontBabylonia'' there's a scene where we see Babylonian priestesses summoning the Goddess Ishtar into a local girl's body via a ritual. The fact that said girl looks exactly like series regular [[VisualNovel/FateStayNight Rin Tohsaka]] is never addressed, leaving the viewer to speculate she had a very distant identical ancestor in the Middle East. In the original ''VideoGame/FateGrandOrder'' game Ishtar looks exactly like Rin because she ''is'' Rin, or rather Ishtar possessing her body.

* The UsefulNotes/PlayStation port of ''VideoGame/LEGOIsland 2'' had a few minigames removed due to space issues. One of these was a FishingMinigame, which is forgivable due to being boring beyond words. However, all mentions of it were inexplicably left in. This means that the minigame preceding it still has the pond at the end, and Pepper still tells Johnny, Pippin Reed, and Kilroy that he had caught a big fish.

* ''VideoGame/SplinterCell: Double Agent'' contains a variant example. The [[UsefulNotes/PlayStation3 PS3]], PC, and UsefulNotes/Xbox360 versions had an entire sub-plot surrounding a budding romance between Sam and Enrica. This subplot was missing from the [[PragmaticAdaptation considerably different]] version released to [[UsefulNotes/PlayStation2 PS2]], UsefulNotes/NintendoGamecube, and original UsefulNotes/{{Xbox}}, [[spoiler: leading to an AdaptationInducedPlotHole when Sam abruptly becomes so protective of Enrica and no other JBA members when ordered to kill them in the final mission.]]

* ''WesternAnimation/JusticeLeagueTheFlashpointParadox'' ends just like the original ''Comicbook/{{Flashpoint|DCComics}}'' comic, with [[spoiler:Franchise/TheFlash rebooting history into the ComicBook/{{New 52}} timeline.]] However, the movie omits ''how this is possible'', since in the original comic, this was caused by [[spoiler: Pandora tricking the Flash into merging Franchise/TheDCU with the Creator/{{Vertigo|Comics}} and Creator/{{Wildstorm}} universes]]. Both [[spoiler: Pandora and the merger sequence]] ended up AdaptedOut, so there's no explanation given as to why [[spoiler: Flash and Batman suddenly have new costumes at the end of the film, besides the implied possibility of ForWantOfANail]].

*** The [[Anime/FateStayNightUnlimitedBladeWorks series]] for ''UBW'' is better about this, except it doesn't explain why Rin doesn't use her magecraft to free herself when Archer captures her, making it look like PlotInducedStupidity.

* ''Recap/DiaryOfAnAnalog'': The plot point of the Crests attributed to the 1999 [=DigiDestined=] being given up to free the Sovereigns in 2000 just after the Diablomon conflict never comes up in its original form, especially considering the 1999 kids are re-established here as having outgrown the need for the Crests to Digivolve beyond Champion as what happened in the FinalBattle of ''Anime/DigimonAdventure''. As a result, unlike canon ''Anime/DigimonAdventure02'', the 1999 [=DigiDestined=] have full access to any form of theirs above Champion, to the point that the entire premise is literally T.K. and Patamon trying to achieve Mega Level on their own in-order to become more independent of Matt and Gabumon.

This isn't limited to major elements of the work; often times minor things will get thrown in to satisfy the fans who might be looking for it but the explanation is left out because it's not important to the adaptation. This can reduce something to the point of a HandWave, but it [[Administrivia/TropesAreTools isn't all bad.]] If something was not that important to the original work, this helps with the ConservationOfDetail and prevents the audience from getting overloaded. However, if done poorly, it can accidentally create an AdaptationInducedPlotHole. This is generally distinguished from that trope by the question of whether the plot would still make sense if you ''did'' know the information that's been cut out.

** At the end of ''VideoGame/ResidentEvil4'', the destruction of [[ReligionOfEvil Los Iluminados]]' island base is shown to be triggered by Ada hitting a button on her laptop during her escape with the Las Plagas sample she was there for. The island base still blows up in the [[VideoGame/ResidentEvil4Remake 2023 Remake]], but the scene of Ada hitting the trigger is omitted, making it seem like it explodes for no reason besides [[BigBad Saddler]] being dead.

* ''WesternAnimation/TheLegoMovie'': Emmet talking to Lord Business in the finale and convincing him to do a HeelFaceTurn is kept in the Junior Novel and Video Game, but the context for why (The Man Upstairs making amends with his son after realizing Lord Business is modeled after him) isn't. Interestingly, the video game keeps the PlotTwist from the film, but still removes almost everything about The Man Upstairs, instead just having Finn find Emmet, and then abruptly send him back.

* In the [[VideoGame/ResidentEvil2Remake 2019 Remake]] of ''VideoGame/ResidentEvil2'', the rescue helicopter still crashes, but the reason for it (it was shot down by a police officer who was attacked by zombies and pulled his gun's trigger in his death throes) is left out.

* In ''Manga/DemonSlayerKimetsuNoYaiba'', the anime adaptation doesn’t make use of the LemonyNarrator present in the manga, which is mostly fine as the anime can just [[ShowDontTell show instead of telling something]], or if it’s really necessary it will have an actual character state that important piece of information. However, there are a few gags in the manga that relied upon the narrator to work, such as the fact explaining how honest the protagonist Tanjiro is to fairly introduce himself to a demon before attacking them, despite how going for a sneak attack would be far more preferable since a demon isn’t really worth being polite to. The anime skipped over explaining why Tanjiro does that.

* The ''Anime/JuniTaisenZodiacWar'' anime leaves out why Ox kept showing up during Tiger's backstory: [[spoiler:Unlike most battles he had with others, he remembered their previous encounter and started contemplating why he acted irrationally during it. He was going to ask her for a drink to get to know her better.]]

** The details of Makuta's evil plan are only hinted at in the film. He wants to put Metru Nui's Matoran citizens to sleep in special pods, then pose as their leader when they awake, and he also needs the Mask of Time but the connection between these goals isn't explained. The pods actually drain the life force and memories of the Matoran, a long process that Makuta wanted to speed up with the mask. This explains why the Matoran never talked about their prior lives in Metru Nui, as their memories had deteriorated over time, which the movies never touched on. Makuta also cut off Metru Nui from all known travel routes to isolate the Matoran and keep away people from other lands, explaining why the Toa had to evacuate the island via a previously unkown tunnel to the undiscovered island of Mata Nui.

* ''LightNovel/CoffinPrincessChaika'' has a Dragoon named Fredrika who took the form of Dominica Škoda's little sister Lucie following the real Lucie's death in an attempt to help Dominica through her grief. It didn't work and Dominica eventually died, so Fredrika started taking the form of Dominica herself to honor her memory. When this is revealed to the main characters following her defeat Fredrika then decides to follow them and look like Lucie instead, but the anime cut Lucie's character and her role in the story completely so she seemingly takes the form of a random girl who just happens to look a bit like Dominica with no explanation.

* In the first ''LightNovel/NyarukoCrawlingWithLove'' LightNovel, when [[OrdinaryHighSchoolStudent Mahiro]] and Nyarko infiltrate Nodens' auction house, Mahiro realizes that it's BiggerOnTheInside, which reveals that he has the rare ability to perceive distortions in space-time and resist the effects they might have on him personally[[note]][[ShoutOut put more simply]], he's a [[Series/KamenRiderDenO Singularity Point]][[/note]]. In the anime, this moment passes without notice, other than Nyarko complimenting him for how well he's handling this unusual situation. While this didn't come up in the two TV series, it becomes an extremely important ChekhovsSkill later down the line, when [[spoiler:Nyarko and Cuuko are [[RetGone erased from history]] and Mahiro is the only one who can save them because he's the only one who even remembers they existed in the first place.]]

** The anime [[{{Bowdlerise}} cuts out]] a scene from the manga where Luffy as a child [[MachoMasochism scars himself]] to try and impress Shanks, thus it's never explained where he got such a scar.

* ''LightNovel/ACertainMagicalIndex'' has to deal with this a lot, due to the AdaptationDistillation required to condense the novels into a limited number of episodes.

** The ''LightNovel/FateZero'' anime is much better when it comes to this; while there are other reasons for Gilgamesh to be infatuated with Saber, the main one is that she reminds him of Enkidu, his MoralityPet and OnlyFriend.

* ''Franchise/{{Dangan Ronpa}}: The Animation'' leaves out large chunks of dialogue that explain the significance of certain clues, but they are still used in the trial scenes. In particular, in case 2, [[spoiler:the dialogue that establishes that only one person could conceivably have found out how to destroy the electronic notebooks is left out.]]

* In ''VideoGame/PokemonMysteryDungeonExplorers of Time'' and ''Darkness'', Luxray can see the team hiding behind a rock using his X-ray vision. He's changed to a Manectric in ''Sky'', who senses their presence instead... somehow.

*** ''Remake'' was pitched as being a good place to jump into the ''VII'' world [[OldGuardVersusNewBlood for first-timers curious to check out the iconic story]]... and for the majority of the game's runtime, it really ''is''. However, a metafictional ItWasHisSled subplot is added, leading to InternalHomage and mysterious happenings that are hugely significant to superfans but left a lot of newcomers confused. In particular, the game is reticent to give much context to who Sephiroth is, assuming everyone will know him from PopCulturalOsmosis, but forgetting that osmotic fans don't usually know anything more about him than his appearance and basic status as a BigBad. His lines, moves, and the characters he fights alongside are all references to various spinoff titles (and even crossover appearances in different continuities), all with special hidden meanings. By the time the LateArrivalSpoiler character appears with zero explanation for who ''he'' is either, the already mysterious and cryptic ending reaches a state of ContinuityLockout.