History Main / FlashSideways

* ''VideoGame/TalesOfTheRays'': In the 2024 collaboration event with ''VideoGame/TalesOfAsteria'', after Julius is freed from possession by a Negative Factor from ''Asteria'', he mentions to Victor that he recalls memories of seeing Ludger fighting Jude and Milla to protect Julius, but that he also remembers Ludger fighting him himself, referring to the diverging routes in ''VideoGame/TalesOfXillia2'' which, as exoflections from earlier in the game, their ''Rays'' versions never experience.

* One of WebOriginal/JennyEverywhere's abilities is to share thoughts and memories with her alternate selves in other universes.

** In "[[Recap/DoctorWhoS30E11TurnLeft Turn Left]]", an alternate universe gets built around Donna Noble, where because she [[ForWantOfANail turned right instead of left one day]], the Doctor is dead, the Earth has gone to Hell, and all of reality is going to be destroyed. She doesn't remember the original timeline, but when she restores things to normal, she has flashes of memory from the Turn-Left universe.

* In the sixth season of ''Series/{{Lost}}'', the characters' {{Alternate Sel|f}}ves in the AlternateTimeline gradually start remembering the lives of their counterparts in the timeline of the first five seasons. [[WordOfGod Team Darlton]] [[TropeNamers coined the trope's name]], although they used it in the wide definition, to describe the idea of intercutting events in different universes (à la [[FlashForward flash-forwards]] and {{flashbacks}}). [[spoiler:It turns out to be a big subversion, though: the alternate timeline is, in fact, [[FlashForward just the afterlife]], though it's debatable whether the alternate timeline being the afterlife and a parallel world are mutually exclusive.]]

[[folder: Anime And Manga]]

[[folder: Audio Play]]
* The ''AudioPlay/BigFinishDoctorWho'' episode, "[[Recap/BigFinishDoctorWho040Jubilee Jubilee]]" has the Sixth Doctor getting in sporadic mental contact with a version of himself from an alternate timeline, who has been through [[AFateWorseThanDeath pure hell]] to put it mildly. He is at first confused by it, and then utterly horrified once he figures out what is going on.

[[folder: Comic Books]]
* The ''Comicbook/{{Flashpoint}}'' timeline's Traci 13 gets glimpses of her life in the main DCU.

* In ''Comicbook/HouseOfM: Comicbook/SpiderMan'', Peter Parker, whose life is perfect, goes mad from the nagging feeling he doesn't deserve it, and obsessively writes an imaginary journal where everyone hates Spider-Man, Uncle Ben and Gwen Stacy are dead, and it's ''all his fault''. Setting the self-loathing aside, he appears to be tapping into his "real" history somehow.

[[folder: Fanfics]]

[[folder: Films -- Live-Action]]

[[folder: Literature]]

[[folder: Live Action TV]]

* In the sixth season of ''Series/{{Lost}}'', the characters' [[AlternateSelf Alternate Selves]] in the AlternateTimeline gradually start remembering the lives of their counterparts in the timeline of the first five seasons. [[WordOfGod Team Darlton]] [[TropeNamer coined the trope's name]], although they used it in the wide definition, to describe the idea of intercutting events in different universes (à la [[FlashForward flash-forwards]] and [[FlashBack flashbacks]]). [[spoiler:It turns out that it was a big subversion, though: The alternate timeline was, in fact, [[FlashForward just the afterlife.]] Though it's debatable whether the alternate timeline being the afterlife and a parallel world are mutually exclusive.]]
* In ''Series/StarTrekTheNextGeneration'', Guinan seems to be aware of alternate universes, as demonstrated in "Yesterday's Enterprise". [[HandWaved Explained]] in the ExpandedUniverse as a by-product of her leaving a part of herself in The Nexus, which allows a person to access any place or time. In her case, it gives her nothing more than intuition about the way things "should" be.

** In "Turn Left", an alternate universe gets built around Donna Noble, where because she [[ForWantOfANail turned right instead of left one day]] the Doctor is dead, the Earth has gone to Hell and all of reality is going to be destroyed. She doesn't remember the original time-line, but when she restores things to normal she has flashes of memory from the Turn-Left verse.
** After "The Big Bang", the Doctor, Amy, Rory, and River all seem to retain memories of the cracked universe.
** The next season finale "The Wedding of River Song" shows yet another alternate universe, where [[spoiler:all of history happens at once. Some people are able to retain ideas of what reality should be like- for example, Amy draws pictures of all of the things she remembers. For example, she knows she has a husband she loves very much, she knows he's Roman...but she can't remember his name or what he looks like, so doesn't realise he's the soldier "Captain Williams"]].
* ''Series/BuffyTheVampireSlayer''. Averted in the Wishverse Universe where the Scoobies, split between vampire and human vigilante "White Hats", brutally slaughter each other without remorse. Most notably Wishverse!Buffy -- an emotionless cold-blooded killer -- meets her [[StarCrossedLovers Star Crossed Lover]] Angel and is unimpressed, not even reacting when [[TakingTheBullet he gives his life to save her]] from Vampire!Xander.
* In the ''Series/{{Supernatural}}'' episode [[Recap/SupernaturalS02E20WhatIsAndWhatShouldNeverBe "What Is And What Should Never Be"]], Dean has flashes of what is going on in the real world, seeing the djinn's other victims, while he is in the Wishverse.

* In the ''Series/RedDwarf'' episode, ''Skipper'', Rimmer uses a device called a quantum skipper to switch places with versions of himself from alternate universes.

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[[folder: Web Comics]]

[[folder: Web Original]]

[[folder: Film]]

* ''Film/EverythingEverywhereAllAtOnce'': Alpha Evelyn invented "verse jumping", the capability to temporarily visit your AlternateSelf and obtain all their skills and memories. The characters we see in the film use verse jumping to obtain various abilities that help them in the heat of the moment. For example, Evelyn connects to a version of her who became a martial arts superstar and temporarily becomes a martial artist.

** Happened to Granny Weatherwax in ''Literature/LordsAndLadies''. Granny spends much of the story worried she's going senile when she keeps recalling false memories, but after a conversation with Ridcully about Ponder's ramblings about {{alternate universe}}s, she realizes what's really going on. Due to "circle time" causing the "walls" between alternate realities to become thinner (and threatening Lancre with an invasion of TheFairFolk), she's actually picking up thoughts from alternate versions of herself.

* In

* In ''Fanfic/SplitSecond'', Twilight and Sparkle (alternate versions of each other) can pull time sideways, allowing the two timelines to intersect and interact. Interesting, in that rather than being a narrative element, it is a physical phenomenon in-universe.

* In ''Manga/KatekyoHitmanReborn'', Byakuran experiences this frequently as a special ability, allowing him to gain knowledge from other timelines where he's taken over the world and use that to conquer the reality that the manga/anime actually takes place in.

* In the ''Film/StarTrek2009'' fanfic ''Fanfic/WrittenInTheStars'', Fem!Kirk is shown flash backs of her counterpart's past, showing said counterpart's relationship with Spock. Halfway through the story both counterparts experience a FlashSideways, showing what's happening in the Alternate Reality of the Mirror Universe.
* Several characters from the [[MirrorUniverse Negaverse]] in the WesternAnimation/DarkwingDuck fanfiction, ''FanFic/NegaverseChronicles'', end up dreaming about the [[MirrorUniverse other universe]] with Darkwing Duck and the Fearsome Five.
* In ''FanFic/SplitSecond'', Twilight and Sparkle (alternate versions of each other) can pull time sideways, allowing the two timelines to intersect and interact. Interesting, in that rather than being a narrative element, it is a physical phenomenon in-universe.

* In Creator/SergeyLukyanenko's ''[[Literature/NightWatch The Last Watch]]'', Anton once again encounters Yegor, who was central to the first novel. Yegor mentions having a vivid dream of being Anton's son and other things not being quite the same. This was a clever way of the author including the films (which are loosely based on the books) into the canon universe without upsetting anyone. This way, it may appear that the films take place in an AlternateUniverse or a dream. A similar comment is made when Ilya recounts a dream he had, which mirrors [[BigLippedAlligatorMoment one of the most random and over the top scenes]] in the first movie.

** In ''Discworld/MonstrousRegiment'', a Black-Ribboner vampire suffering from serious coffee withdrawal while serving as a soldier in the Borogravian army suffers "flashsides" of the Vietnam war. As it gets worse people nearby start experiencing these hallucinations too.
** Also invoked in ''Discworld/{{Jingo}}'', where Sam Vimes and his AlternateSelf grab each other's "Dis-Organizers"; Main TL Sam keeps getting harrowing messages from the Alt-Dis-Organizer of repeated disasters from the ParallelUniverse where he stayed in Ankh-Morpork.
** Happened to Granny Weatherwax in ''Discworld/LordsAndLadies''. Granny spends much of the story worried she's going senile when she keeps recalling false memories, but after a conversation with Ridcully about Ponder's ramblings about {{alternate universe}}s, she realizes what's really going on. Due to "circle time" causing the "walls" between alternate realities to become thinner (and threatening Lancre with an invasion of TheFairFolk), she's actually picking up thoughts from alternate versions of herself.
-->"And here I thought my mind was going! Hah, it was going and fetching!"

** In the 2099 reboot, after a reality reset, Miguel has frequent flashbacks of the things that happened to him in the AlternateUniverse where the original comics took place. This can range from minor stuff - like remembering the original ending of a movie despite that version being lost - to full-blown hallucinations. Combined with the old volumes' TimeTravel, the fact he has no control over them, and no knowledge of the reset, Miguel becones an odd case of FishOutOfTemporalWater, as he's disoriented by his own era.

** During the ''ComicBook/SpiderVerse'' event, Miguel is able to witness and feel the deaths of his {{Alternate Sel|f}}ves.

* Also by Creator/TerryPratchet, in ''Literaturee/TheDarkSideOfTheSun'', journeys through [[SubspaceOrHyperspace Interspace]] cause the traveller to see alternate realities.