History Main / DoNotSpoilThisEnding

* Music/TobyFox, the creator of ''VideoGame/{{Undertale}}'', asked people to not spoil the game's secrets for others, both in an audio file addressed to people ripping the sound effects, and some text strings addressed to people ripping the dialogue. He also included a message in the texture files asking people to not upload them online because of the way [=GameMaker=] Studio puts many sprites together in gigantic texture files (the entirety of Undertale's sprites are compressed into maybe 4 enormous texture files, so it's clear why he was worried about people uploading them unedited), though saying they're allowed to copy "normally seen" sprites into separate sprite sheets for Spriter's Resource. Toby seems to be more relaxed in the request after being interviewed by a gaming outlet, saying that he doesn't mind people datamining the game as much as he used to before and the reason he wanted spoilers minimized was to allow people to play the game blind and experience the plot twists on their own.

[[folder:Anime and Manga]]

[[folder:Film - Animated]]

[[folder:Film - Live-Action ]]

** ''Shift 2'' asks you to tell everyone in your reviews that "The cc is a lie", referring to the "unlockable" bonus feature of playing as the Classic Character from the first game (He's dead, remember?).

* In an episode of ''WesternAnimation/{{Arthur}}'' where he buys a computer game called ''Deep Dark Sea'', he explains that there's a "thing" in the game he needs to find. Apparently another kid who found it received a ton of free stuff, as long as he didn't reveal what "the thing" was. Arthur and Buster find a treasure chest in the game, and expect that's "the thing" but it later turns out to have just been full of evil skeletons.

-->-- '''[[https://www.youtube.com/watch?v=x_WUCvYkRyc abc_123_a.ogg]]''' ''VideoGame/{{Undertale}}''

-->-- '''[[https://www.youtube.com/watch?v=x_WUCvYkRyc abc_123_a.ogg]]''', ''VideoGame/{{Undertale}}''

* ''ComicBook/FantasticFour'' #21 introduces the Hate-Monger, a mysterious villain who hides his identity with a purple KKK-style hood. The cover reads, in parentheses:
--> Don't dare reveal his true identity after reading this tale!![[labelnote:In case you're wondering]]At the end, the Hate-Monger is revealed to be a clone of UsefulNotes/AdolfHitler[[/labelnote]]

** ''Wiki/{{Wikipedia}}'''s page on it includes a section revealing the killer's true identity. Christie's grandson, the current owner of the play, was reportedly "dismayed" to find this out.

* ''VideoGame/{{Shift}} 3'' asks you to reveal that the hidden character is someone completely different from the truth.
** Both ''Shift 2'' and ''Shift 3'' ask you to tell everyone in your reviews that "The cc is a lie" referring to the "unlockable" bonus feature of playing as the character from the first game (He's dead, remember?) and how you hate that the secret character is Mel Gibson [[VideoGame/FancyPantsAdventures Fancy Pants Man]], respectively.

** To make things even more amusing, the reward for that hidden puzzle was a special familiar which, to begin with, was ''insanely'' powerful for its type...but would degrade the more people found it, until it was no more potent than any other. It took about a day.

* In-universe subversion: In the unpublished ''[[WesternAnimation/ThePowerpuffGirls Powerpuff Girls]]'' story "Mojo's Day Off," Mojo Jojo is relaxing reading a mystery novel. When the girls burst in to his lair only to find that he's not responsible for random calamities in town, Blossom spoils the novel's denoument, much to Mojo's great irritation.

* Creator/PeterDavid has asked this several times when bringing out a plottwist book. Particularly the first issue of ''Comicbook/{{Thunderbolts}}'', which featured him basically lying to the Marvel marketing department in order to preserve the twist.

[[quoteright:331:[[Film/{{Psycho}} https://static.tvtropes.org/pmwiki/pub/images/1674_tn.jpg]]]]
[[caption-width-right:331:"Especially you in the balcony!"]]

-->--'''[[https://www.youtube.com/watch?v=x_WUCvYkRyc abc_123_a.ogg]]''', ''VideoGame/{{Undertale}}''

* The [[http://www.dccomics.com/comics/dc-universe-rebirth-2016/dc-universe-rebirth-1 DC Comics page]] for ''[[ComicBook/DCRebirth DC Universe: Rebirth]]'' #1 states: "It all begins here. Do not skip to the last page. Do not let a friend or message board ruin this comic for you. The future (and past) of the DC Universe starts here. Don’t say we didn’t warn you!"

* A strange InUniverse example comes from ''Manga/ThouShaltNotDie''. The main character Kuroi, who possesses mind reading and hypnosis powers, will take extensive steps to ensure no-one prods or reveals anything in Mashiro's mind or past. The reason for this is that as a mind-reader, he always knows everything about everyone with Mashiro being the only person he has found who he can't read. Elated with this, he wants to see for himself what kind of person she really is and what is hidden in her and how she might evolve. He will even go as far as to kill anyone he even suspects might try to prod her that could end up revealing "spoilers" about her to him.

* There are a few covers on ''Website/{{Superdickery}}'' with a big box on the ''front of the comic'' saying something along the lines of "Don't you dare reveal the '''shocking''' identity of the most deadly villain ever!"
* In ''ComicStrip/KnightsOfTheDinnerTable'', anyone who plays the infamous module ''The Temple of Horrendous Doom'' has to sign a Non-Disclosure Agreement about its contents.
* Creator/PeterDavid has asked this several times when bringing out a plottwist book. Particularly the first issue of ''Comicbook/{{Thunderbolts}}'', which featured him basically lying to the Marvel marketing department in order to preserve the twist.

* In-universe subversion: In the unpublished ''[[WesternAnimation/ThePowerpuffGirls Powerpuff Girls]]'' story "Mojo's Day Off," Mojo Jojo is relaxing reading a mystery novel. When the girls burst in to his lair only to find that he's not responsible for random calamities in town, Blossom spoils the novel's denoument, much to Mojo's great irritation.
* ''ComicBook/XMen'' vol. 1 #17 featured [[https://vignette.wikia.nocookie.net/marveldatabase/images/4/44/X-Men_Vol_1_17.jpg/revision/latest?cb=20180128175029 a cover]] where someone finds most of the X-Men lying on the ground in a heap, with the text declaring, "YOU MUST NOT REVEAL THE INCREDIBLE ENDING TO ANY LIVING SOUL!! (Remember..we'll be watching you!)"

* At the end of ''Film/WitnessForTheProsecution'' there's a disclaimer that reads "The management of this theatre suggests that for the greater entertainment of your friends who have not yet seen the picture, you will not divulge the secret of the ending of Witness for the Prosecution." Also, the trailers and promotional materials had a similar theme.
* Initially, the promotions for ''Film/{{Psycho}}'' had a "no late admissions" policy, to keep late arrivals from wondering where Creator/JanetLeigh was. (This singlehandedly changed US cinema-going culture - before ''Psycho'' it was quite common for spectators to enter a cinema halfway through the program and be allowed to stay in their seats to watch the next program until the point when they'd arrived.) Also, Creator/AlfredHitchcock himself addressed leaving audiences over a loudspeaker by saying "Don't give away the ending - it's the only one we have." Hitchcock even went so far as to purchase all the copies of the book he could out of his own pocket to try and keep the twist a secret.
* The 1956 French suspense film ''Film/LesDiaboliques'' (''Diabolique'' in English-speaking countries), which ended with the disclaimer "''Ne soyez pas DIABOLIQUES!''" (roughly translated as "Don't be EVIL!"), requesting that audience members not ruin their friends' interest in the film by telling them what they had seen, and concluding "''Merci pour eux''" ("Thank you on their behalf").

* The trailer for the film adaptation of ''Literature/JohnDiesAtTheEnd'' says "Whatever you do, don't spoil the ending." This is mostly PlayedForLaughs, though there ''is'' a shocking reveal at the end that the statement could be referring to.

* As the GrandFinale to [[Franchise/MarvelCinematicUniverse a storyline built up across 11 years and 22 movies]], ''Film/AvengersInfinityWar'' and ''Film/AvengersEndgame'' made use of an EngineeredHashtag to discourage spoiling the movies, with "'''[=#ThanosDemandsYourSilence=]'''" used for the former and "'''[=#DontSpoilTheEndgame=]'''" for the latter.

* Parodied on ''[[Series/MysteryScienceTheater3000 MST3K]]'': while watching ''[[Film/TheWildWorldOfBatwoman The Wild, Wild World of Batwoman]]'', when [[PaperThinDisguise Ratfink]] is unmasked, Tom Servo quips, "Please do not reveal the secret to The Wild, Wild World of Batwoman."

* The adventure module ''Die Attentäter'' for the German version of ''TabletopGame/TheDarkEye'' has a surprise twist ending, that at the time of publication asked for secrecy by the players. Even though another adventure, over a decade later, re-uses the secret that the assumedly male Emperor Hal really was a woman, you still better watch what you're saying at German RPG cons so as not to upset players.

* At the end of ''Ghost Stories'', an announcer kindly asks that you not reveal the ending.
* The post-bows number of ''Theatre/{{Curtains}}'' instructs the audience to keep the killer's identity secret.
* At the end of Rupert Holmes' murder play ''Accomplice'' the cast [[BreakingTheFourthWall break the fourth wall]] to tell the audience that if they spoil the ending "you will no longer be our [[TitleDrop accomplice]]".

* ''VideoGame/{{Shift}} 3'' asks you to reveal that the hidden character is someone completely different from the truth.
** Both ''Shift 2'' and ''Shift 3'' ask you to tell everyone in your reviews that "The cc is a lie" referring to the "unlockable" bonus feature of playing as the character from the first game (He's dead, remember?) and how you hate that the secret character is Mel Gibson [[VideoGame/FancyPantsAdventures Fancy Pants Man]], respectively.

* The creator of the ''VideoGame/{{Touhou}}'' has asked the fanbase not to reveal the endings of the games. Most likely so that those who ''do'' make it to the end and see an ending can feel a real sense of accomplishment. Given [[BulletHell the genre]], seeing the Good ending of a game is a pretty big accomplishment indeed. For the most part, the fanbase complies, to the point of the Wiki not revealing even the synopsis of any endings, and when a character only shows up in a game's ending, it's spoiler-tagged on the character's appearances list.
* Applies to the near-endgame easter egg of ''VideoGame/TorinsPassage''. Creator Al Lowe kindly asks the player "But whatever you do, don't tell anyone how you got this message. Instead, just taunt them with: Why, I got a personal message from Al Lowe at the end - didn't you?"
* Creator/{{Atlus}} often asks players not to upload gameplay of recently released games (Such as ''VideoGame/Persona4Arena'' and ''VideoGame/PersonaQShadowOfTheLabyrinth'') online.
** ''VideoGame/{{Persona 4}}'' was intended to launch with a friendly version of this message at the start of a playthrough, asking the player not to spoil the identity of the killer. This was removed before the game's release.
** ''VideoGame/{{Persona 5}}'' has this as well since some shops in Japan and elsewhere in Asia broke street dates and released the games early to customers. Atlus actively looked for anyone posting videos of the game and requested website hosts to take them down.

* ''VideoGame/PerAspera'' says the campaign has you play an AI, and how your decisions draw you closer or further from them, and also to be a good player and not to spoil the endings.
* Siter Skain, the makers of ''VideoGame/TheTaleOfAlltynex'', have made this request of their fans as well. However, this is extremely frustrating for English-speaking fans of their games, since no translations, official or otherwise, have been made. A couple of bilingual fans have revealed the endings here and there, but good luck hunting those revelations down. Ever since the entire trilogy has been localized and released on Steam, however, this has ceased to be a problem.
* Masahiro Sakurai, director of the ''VideoGame/SuperSmashBros'' series, has stated that the reason the fourth game in the series doesn't have a grand single player campaign like ''VideoGame/SuperSmashBrosBrawl''[='s=] Subspace Emissary is because he disapproved of people uploading all of ''Brawl''[='s=] cutscenes. He didn't want people who hadn't experienced the game to have the story spoiled on them. In the event that they just inadvertently opened their web browsers, went to Website/YouTube and opened a Let's Play, of course.

* Music/TobyFox, the creator of ''VideoGame/{{Undertale}}'', asked people to not spoil the game's secrets for others, both in an audio file addressed to people ripping the sound effects, and some text strings addressed to people ripping the dialogue. He also included a message in the texture files asking people to not upload them online because of the way [=GameMaker=] Studio puts many sprites together in gigantic texture files (the entirety of Undertale's sprites are compressed into maybe 4 enormous texture files, so it's clear why he was worried about people uploading them unedited), though saying they're allowed to copy "normally seen" sprites into separate sprite sheets for Spriter's Resource. Toby seems to be more relaxed in the request after being interviewed by a gaming outlet, saying that he doesn't mind people datamining the game as much as he used to before and the reason he wanted spoilers minimized was to allow people to play the game blind and experience the plot twists on their own.
** ''VideoGame/{{Deltarune}}'': The game's website advised people not to talk about it until a day after its initial release on October 31, 2018. After the 24 hours were up, Toby [[https://mobile.twitter.com/tobyfox/status/1057987819765936128 on his twitter]] thanked everyone who didn't spoil the game, and for those who did he says he understands...because he was waiting to talk about it for ''six years''.
---> * FOR PUBLIC SAFETY, YOU ARE ADVISED TO REFRAIN FROM DISCUSSION OF THE PROGRAM FOR 24 HOURS.

* In ''VideoGame/BillyVsSNAKEMAN'', the penultimate page of [[BonusLevelOfHell The Impossible Mission]] tells players that have gotten that far ''"One last page exists. The game's creator has asked that its contents be kept secret."'' The last page is possibly the most widely viewed part of the game that is not in its [[TheWikiRule Wiki Guide]].

* When ''WesternAnimation/WreckItRalph'' was still airing in theaters in 2012, the {{Website/Tumblr}} userbase sent a notice around the site telling other users not to spoil the twist that King Candy was actually Turbo. For a couple of weeks this worked -- at least until they broke their own promise and started posting TheReveal in its full, spoilery glory.

* The CreepyPasta ''It Has a Rather Lovely Ending'' is about a cursed video game that compels whoever plays it to recommend it to everyone they know, with [[TitleDrop the title]] as the only information about it.

* In an episode of ''WesternAnimation/{{Arthur}}'' where he buys a computer game called ''Deep Dark Sea'', he explains that there's a "thing" in the game he needs to find. Apparently another kid who found it received a ton of free stuff, as long as he didn't reveal what "the thing" was. Arthur and Buster find a treasure chest in the game, and expect that's "the thing" but it later turns out to have just been full of evil skeletons.

This is a SpoileredRotten trope, meaning that '''EVERY SINGLE EXAMPLE''' on this page is a spoiler by default and most of them will be unmarked. [[Administrivia/YouHaveBeenWarned This is your last warning]], only proceed if you really believe you can handle this page.

This is a SpoileredRotten trope, meaning that '''EVERY SINGLE EXAMPLE''' on this page is a spoiler by default and most of them will be unmarked. Administrivia/YouHaveBeenWarned This is your last warning]], only proceed if you really believe you can handle this page.

* Creator/JustineLarbalestier, in ''Literature/Liar2009'', asked readers not to spoil that [[spoiler: Micah is a werewolf.]]

* The adventure module ''Die Attentäter'' for the German version of ''TabletopGame/TheDarkEye'' has a surprise twist ending, that at the time of publication asked for secrecy by the players. Even though another adventure, over a decade later, re-uses the secret that [[spoiler: the assumedly male Emperor Hal really was a woman]], you still better watch what you're saying at German RPG cons so as not to upset players.

** Both ''Shift 2'' and ''Shift 3'' ask you to tell everyone in your reviews that "The cc is a lie" [[spoiler: referring to the "unlockable" bonus feature of playing as the character from the first game (He's dead, remember?)]] and how you hate that the secret character is Mel Gibson [[spoiler: [[VideoGame/FancyPantsAdventures Fancy Pants Man]]]], respectively.
* ''[[VideoGame/ChzoMythos Trilby: The Art of Theft]]'' asks you to lie to other players about what you unlock for beating every mission in a row using a suit that increases your visibility. [[spoiler:You get nothing.]]

** ''VideoGame/{{Deltarune}}'': The game's website advised people not to talk about it until a day after its initial release on October 31, 2018. After the 24 hours were up, Toby [[https://mobile.twitter.com/tobyfox/status/1057987819765936128 on his twitter]] thanked everyone who didn't spoil the game, and for those who did he says he understands... because he was waiting to talk about it for ''six years''.

** To make things even more amusing, the reward for that hidden puzzle was a special familiar which, to begin with, was ''insanely'' powerful for its type... but would degrade the more people found it, until it was no more potent than any other. It took about a day.

* When TheReveal of UU [[spoiler:(aka Calliope, a cherub)]] was posted in ''Webcomic/{{Homestuck}}'', Hussie posted a note asking fans not to start spreading it around Tumblr as was the norm. If they had to, he posted a ''fake'' reveal in which [[spoiler:UU was shown as a troll, as was hinted.]] The notice has since been removed.

* When ''WesternAnimation/WreckItRalph'' was still airing in theaters in 2012, the {{Website/Tumblr}} userbase sent a notice around the site telling other users not to spoil the twist that [[spoiler: King Candy was actually Turbo]]. For a couple of weeks this worked -- at least until they broke their own promise and started posting TheReveal in its full, spoilery glory.

->Oh, and the killer in ''Theatre/TheMousetrap''? Is [[spoiler:the killer -- what, you expected a serious answer?]]

* The CreepyPasta ''It Has a Rather Lovely Ending'' is about a cursed video game that compels whoever plays it to reccomend it to everyone they know, with [[TitleDrop the title]] as the only information about it.

* Music/TobyFox, the creator of ''VideoGame/{{Undertale}}'', asked people to not upload sprite rips since the majority of the character sprites contain details and facial expressions that are spoilers for characters/endings or at least show off a character in a way that would surprise someone that wasn't expecting a character to change in a certain way. Toby seems to be more relaxed in the request after being interviewed by a gaming outlet, saying that he doesn't mind people datamining the game as much as he used to before and the reason he wanted spoilers minimized was to allow people to play the game blind and experience the plot twists on their own.

** The book it was adapted from, ''Three Blind Mice'', was actually banned from publication while ''The Mousetrap'' was on the air (or at least, it says so in the book's preface).

* Critics at pre-screenings of ''Film/TheCryingGame'' were asked not to reveal the film's twist in their reviews. Surprisingly, this worked. The AllThereIsToKnowAboutTheCryingGame factor only kicked in after the film had debuted to the general public.

* The opening number of ''Theatre/SweeneyTodd'' invoke this in-universe on behalf of the chorus. After spending several versus describing the Demon Barber of Fleet Street, only the barest setup for the story is given.

--> Don't dare reveal his true identity after reading this tale!![[labelnote:note]]In case you're wondering, the Hate-Monger is a clone of UsefulNotes/AdolfHitler[[/labelnote]]

* Initially, the promotions for ''Film/{{Psycho}}'' had a "no late admissions" policy, to keep late arrivals from wondering where Creator/JanetLeigh was. (This singlehandedly changed US cinema-going culture - before ''Psycho'' it was quite common for spectators to enter a cinema halfway through the program and be allowed to stay in their seats to watch the next program until the point when they'd arrived.) Also, Creator/AlfredHitchcock himself addressed leaving audiences over a loudspeaker by saying "Don't give away the ending - it's the only one we have." Hitchock even went so far as to purchase all the copies of the book he could out of his own pocket to try and keep the twist a secret.
* The 1956 French suspense film ''Film/LesDiaboliques'' (''Diabolique'' in English-speaking countries), which ended with the disclaimer "''Ne soyez pas DIABOLIQUES!''" (roughly translated as "Don't be EVIL!"), requesting that audience members not ruin their friends' interest in the film by telling them what they had seen, and concluding "''Merci pour eux''" ("Thank you for them").

* When TheReveal of UU [[spoiler:(aka Calliope, a cherub)]] was posted in ''Webcomic/{{Homestuck}}'', Hussie posted a note asking fans not to start spreading it around tumblr as was the norm. If they had to, he posted a ''fake'' reveal in which [[spoiler:UU was shown as a troll, as was hinted.]] The notice has since been removed.

* When ''WesternAnimation/WreckItRalph'' was still airing in theaters in 2012, the {{Website/Tumblr}} userbase sent a notice around the site telling other users not to spoil the twist that [[spoiler: King Candy was actually Turbo]]. For a couple of weeks this worked- at least until they broke their own promise and started posting TheReveal in its full, spoilery glory.