A subtrope of MultipleEndings, where one of the endings (or the epilogue) can only be unlocked after you have discovered all other (non-GameOver) endings of the game--with emphasis on "all". [[ThatOneAchievement Theoretically]], after watching/reading this ending, the players can safely quit the game and walk away, since they have now seen everything it has to offer.

May or may not be the GoldenEnding. Closely related to NewGamePlus. Contrast LastSecondEndingChoice.
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!!Examples:

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[[folder:Adventure Games]]
* ''VideoGame/ShadowOfDestiny'' has two endings that can only be unlocked when you've seen all the normal endings.
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[[folder:Beat 'Em Up]]
* ''VideoGame/MuramasaTheDemonBlade'' has each character's third ending, which can only be unlocked by viewing all previous endings for each character, equipping the weapons you get from these endings, and then [[TrueFinalBoss fighting a harder version of the character's final boss]].
* In ''Videogame/AnarchyReigns'', beating both Jack's storyline (Black Side) and Leo's (White Side) unlocks the Red Side, which picks up in the cliffhanger that the two stories leave off in.
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[[folder: Fighting Games]]
* The True Ending for the FightingGame-Slash-VisualNovel ''VideoGame/BlazBlueContinuumShift'' is a subversion. It closes much of the story threads for the moments and leads to the eventual sequel, but you don't ''need'' a 100% completion, you can just complete the necessary stories (Ragna, Noel, Jin, Tsubaki, Hakumen, Hazama) and then you can see the True End. To appreciate the story fully, you're going to dig in other characters that aren't necessary to unlock the True End.
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[[folder:Platform Games]]
* Every mainline ''Franchise/SonicTheHedgehog'' game from ''VideoGame/SonicAdventure'' through ''VideoGame/SonicTheHedgehog2006'' has this where it has a Last Story (all named "Last" [[OddNameOut except for Sonic Adventure]]).:
** ''VideoGame/SonicAdventure'': Clear Sonic's, Tails', Knuckles', Amy's, Big's and Gamma's stories and you'll unlock the "Super Sonic" Story, where you fight against [[spoiler:Perfect Chaos.]]
** ''VideoGame/SonicAdventure2'': Clear both the "Hero" and "Dark" Stories to unlock the "Last" Story, where you fight against [[spoiler:Biolizard/Finalhazard.]]
** ''VideoGame/SonicHeroes'': Clear Team Sonic's, Team Dark's, Team Rose's and Team Chaotix's stories and get the Chaos Emeralds and you'll unlock the "Last" Story, where you fight against [[spoiler:Metal Sonic in his two forms: [[OneWingedAngel Metal Madness]] and [[TrueFinalBoss Metal Overlord]].]]
** ''VideoGame/ShadowTheHedgehog'': Reach all 10 possible endings and you'll unlock the "Last" Story, where you fight against [[spoiler:Black Doom's OneWingedAngel form: '''Devil Doom'''.]]
** ''VideoGame/SonicTheHedgehog2006'': Clear Sonic's, Shadow's, and Silver's stories and you'll unlock the "Last" Story, where you fight against [[spoiler:Solaris, a [[LightIsNotGood pure bright abomination]] [[FusionDance combined]] with both Iblis and Mephiles.]]
** ''VideoGame/SonicUnleashed'', ''VideoGame/SonicColors'', ''VideoGame/SonicGenerations'' and ''VideoGame/SonicLostWorld'' bucked the trend. Sonic is the only playable character (no multiple stories), the progress of the plot is strictly linear, and there is no TrueFinalBoss. (The DS version of ''Colors'', on the [[TrueFinalBoss other hand]]...)
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[[folder:RPG -- Action]]
* In ''VideoGame/OdinSphere'', unlocking the game's epilogue requires seeing all cutscenes -- including both the good and bad endings, but also every combination of the five player characters defeating the five final bosses.
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[[folder:RPG -- Eastern]]
* ''VideoGame/KingdomHeartsBirthBySleep''. Completing all three stories with each area unlocked opens a PlayableEpilogue, in which Aqua faces the TrueFinalBoss.
** Beating the True Final Boss in the Final Mix version also grants a Secret Episode ending in which the player controls Aqua in the Realm of Darkness fighting her way through hordes of Heartless.
* ''VideoGame/FinalFantasyXIII2'' has the normal ending, eight paradox endings gained by screwing destiny, and the super-secret epilogue unlocked by finding all fragments, including those gained by seeing the other endings.
* The ''Franchise/ChaosRings'' series tends to have this.
** In [[VideoGame/ChaosRings the original game]], you can only initially play as one of two couples. Finishing the game for both unlocks two more couples you can play as. Finishing the game with all four unlocks a final chapter. Finishing the final chapter with all four ''finally'' unlocks the GoldenEnding.
** ''VideoGame/ChaosRingsII'' has two examples. You can only unlock the final chapter and [[HappyEnding True Ending]] after getting the [[BitterSweetEnding Normal Ending]]. And then you can then only get the alternate GoldenEnding in EndgamePlus after getting the True Ending.
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[[folder:RPG -- Western]]
* ''VideoGame/{{Undertale}}'' has a rather twisted example, if you see the GoldenEnding after getting the KillEmAll ending. [[spoiler:Remember how, after finishing the KillEmAll ending, the world was totally destroyed, and you had to give the Fallen Child your SOUL to get it back? Well, now you get to find out what they're gonna ''do'' with it! Hint: They start by possessing Frisk's body and letting out an EvilLaugh.]]
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[[folder:Simulation Games]]
* ''VideoGame/AceCombat3Electrosphere'' had five endings and an epilogue that revealed [[spoiler:that you were an [[TomatoInTheMirror AI trapped inside]] [[BreakingTheFourthWall a simulated reality all along]]]] -- who's about to be released.
* ''[[VideoGame/ArmoredCore Armored Core: Last Raven]]'' has an ending that is seen after the other six, where [[spoiler: you are the sole surviving Raven of the war between The Alliance and Vertex, and you receive a request to destroy a gigantic MT, the last of the Pulverizers, from an unknown source.]]
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[[folder:Survival Horror]]
* In ''VideoGame/EternalDarkness'', each time you play through the game, there's one less ancient to choose from in the first level where you play as pre-FaceHeelTurn [[TheDragon Pious]]. After you've completed the game with all three as an antagonist, the epilogue reveals [[spoiler:that the fourth god, who was helping the player, basically split reality into alternative timelines where each ancient was defeated and then merged them together so that they all were.]]
* The ''VideoGame/ResidentEvil'' remake on UsefulNotes/NintendoGameCube has a thank you message from the developers that you only get once you've unlocked and beaten ''absolutely everything''... that basically tells you how much it means to the developers to have a gamer get ''that'' much enjoyment out of their game.
* ''VideoGame/ResidentEvil2'' has this after completing both characters' scenarios.
* ''VideoGame/ResidentEvil6'' originally had this as part of the Ada campaign, which could only be unlocked by completing the other scenarios, [[SubvertedTrope until Capcom patched the game to make it available from the start]].
* ''VideoGame/EnigmaAnIllusionNamedFamily'' has a {{Downplayed}} example. Only three endings lead to credit rolls; in order to reach the third, True Ending, you have to collect all the pieces of a photograph that's been torn up and scattered throughout the manor, then play through and reach the other two 'Main' Ends. None of the other Bad Ends have to be viewed.
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[[folder:Visual Novels]]
* ''VisualNovel/{{Tsukihime}}'' has nine endings and an epilogue where Shiki meets his mentor, Aoko Aozaki, who compliments him on his choices in life. Interestingly, the epilogue is supposed to be canonical in each path/ending, [[spoiler:[[NotQuiteDead including the one where Shiki dies]]]].
* ''VisualNovel/FateStayNight'' has a final epilogue scene in the ''Realta Nua'' version ([[spoiler:where Shirou and Saber are reunited in Avalon]]) that can only be unlocked after viewing ''all forty-five endings of the game'' and then replaying the first route.
* ''VisualNovel/HatofulBoyfriend'' has a lengthy extra route that's only accessible when you've seen an ending for each dateable bird. [[spoiler:You play as Ryouta attempting to solve Hiyoko's grisly murder.]] This extra route has a post-credit scene, that can only be viewed if ''all'' endings for dateable birds has been unlocked.
* ''VisualNovel/{{Ever17}}'' has extra dialogue options that only appear when you've seen all the good endings. The new options lead you to the true ending.
* ''VisualNovel/{{Clannad}}'' takes it further: after you've achieved all of the 'main' endings to the first part of the game, you unlock the second part, which comes with endings of its own. There's then a final ending to ''that'', which is only achievable once you [[spoiler:win ''every'' other ending.]] It's actually a plot point: [[spoiler:when you finish each ending, you receive an orb of light, which in-universe is supposed to appear when a person experiences a moment of true happiness. For the final ending, Tomoya actually uses the orbs of light to grant him a wish, which is how the true ending happens.]]
* ''VisualNovel/AkaiIto'' has the Nozomi route, which is unlocked after completing Yumei's route, which in itself requires you to complete the Good Ending of Tsuzura, Uzuki, and Sakuya. It's mainly there to explain Nozomi's motivations and is a letdown after the emotional climax with Yumei.
* ''VisualNovel/AoiShiro'' has the Nami ending, which is also the GoldenEnding. It's opened after getting the Good Ending with all other girls: because [[GuideDangIt some choices in her route are not obvious]] unless you get the facts right from the other routes.
* ''VisualNovel/CorpseParty: Book of Shadows'' does not allow you to play the final chapter until you see all of the endings of the other chapters... unless you happen to have a [[OldSaveBonus save from the previous game]], ''Blood Covered''. In that case, you only have to play through each of the other chapters once.
** The prequel fangame ''VisualNovel/CorpsePartyZero'' has a Bad Ending variant. If you see each of the nine bad endings obtained by making a fatal mistake at different points in the story, you can take on 'the final nightmare', a WhatIf scenario [[spoiler:implied to be Shiho's DyingDream]].
* In ''VideoGame/NoOneHasToDie'', the final storyline is unlocked only after you've seen every possible story outcome. There turns out to be a plot-justified reason for this: [[spoiler:it turns out that all these previous storylines you saw came from parallel/alternate universes where you made different choices of who to save and that in one of these storylines, you took a time machine to a universe where all the main characters were able to remember having similarly time-traveled from a universe in which they had been the lone survivor of their group.]]
* ''VideoGame/ShiraOkaSecondChances'' makes you work ''hard'' to get the GoldenEnding in which [[spoiler:Kasumi lives]] by forcing you to get every other character's good ending to unlock it.
* ''Let's Meow Meow'' has an ending for every girl you can have sex with except Kohaku. Get all of these endings and you gain access to the Harem ending, ExactlyWhatItSaysOnTheTin.
* ''VisualNovel/LittleBusters'' has the [[GoldenEnding Refrain route]], which can only be unlocked after completing all other routes.
* In ''Doppelganger: Dawn of the Inverted Souls'', you have to get a certain number of other characters' endings to unlock Blake and Clifford's paths and then at least one ending of every available character to unlock the GoldenPath.
* In ''VisualNovel/{{Nameless}}'', only Lance, Yeonho and Yuri's routes are available at first. Getting at least one of these characters' good endings unlocks Tei's route, and getting Tei's good ending in turn unlocks Red's route. Get ''all'' five characters' good endings, and you'll be able to view the SecretCharacter's ending. But that's not all: after viewing said secret character's ending, you need to [[ViolationOfCommonSense choose to have all your previous save data erased]] and repeatedly enter the secret character's name at the character selection screen to see the ''second'' and final secret ending.
* ''VideoGame/AmnesiaOtome'' initially offers the player a choice between four possible routes: Heart World, Diamond World, Clover World, and Spade World. Completing all four routes unlocks Joker World, the "true" path of the game.
* In ''VisualNovel/CodeRealize'', completing the True Endings for Impey, Saint-Germain, Frankenstein, and Van Helsing unlocks Lupin's route.
* To see the true endings in the ''Franchise/ZeroEscape'' games (''VisualNovel/NineHoursNinePersonsNineDoors''; ''VisualNovel/VirtuesLastReward''; and ''VisualNovel/ZeroTimeDilemma''), you must see the other endings. Note, however, that this is [[JustifiedTrope entirely justified]] - [[spoiler: at least one character in each game is using MentalTimeTravel to explore multiple timelines in order to prevent a tragedy]].
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