- Type 1. If a character sees a large fire and starts having a Freak Out! because it triggers a traumatic flashback of when they were a kid and almost got trapped and killed in a fire. Flashbacks of forgotten or repressed traumas may be incomplete, mysterious and foreboding.
- Type 2. As above, but with nostalgic or otherwise meaningful events.
- Type 3. A person reminds someone of a different person they used to know, and they flashback to memories of that person, sometimes represented by visually superimposing the old person's image over the new person's.
- Type 4. A flashback to That One Case or an event that was someone's Greatest Failure brought on by a similar event, may lead to My Greatest Second Chance.
- Type 5. Any flashback to an event because History Repeats.
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Anime and Manga
- In the first chapter of Assassination Classroom, Koro-sensei notices a fragment of charred, sizzling gunpowder from Nagisa's failed assassination attempt, triggering a cryptic Type 2 flashback involving what looks like the remains of a destroyed, burning laboratory, a woman with a bleeding stomach, and a tentacled, human-like figure cradling her in its arms. Type 1 and Type 4 occur when the sight of Itona's tentacles sends Koro-sensei into a very brief but terrifying fit of anger. The scene then cuts to a quick flashback of a hand turning into tentacles and impaling the woman in the gut.
- During the Conviction arc of Berserk, Guts has a combination of Type 1, Type 3 and Type 4 when the horse that he kidnapped Farnese on gets possessed by one of the demons after him and tries to rape her, reminding him strongly of the rape of his lover Casca at Griffith-turned-Femto's hands during the Eclipse. This proceeds to set Guts off in a serious way, with ugly results for the once-helpful steed.
- During Guts and Casca's first time, Guts ends up having a Type 1 flashback to his traumatic childhood rape at the hands of Donovan, which almost leads to Casca getting strangled to death before Guts comes back to his senses. The rest of the scene sees the two more than making up for this.
- Elfen Lied: When trying to stop Lucy from fighting Nana at Maple House, Mayu pleads to Lucy "No more! Stop it!" Lucy has a flashback to the day she killed Kouta's father and sister, during which a young Kouta tearfully said the exact same thing to her, and has an attack that leads to Nyu resurfacing.
- Fullmetal Alchemist. Winry gets a type 2 in episode 22: as she hears rumors of the Elrics fighting Scar, she suddenly flashes back to her parents' retreating backs the last time she saw them alive, which is then superimposed with an image of Ed and Al walking the same way.
- Also happens to Mustang in the manga: after Hawkeye drops the phone to engage in combat with Gluttony, a single panel shows Hughes' dead body lying in a phone booth, showing Mustang's fear of being unable to save someone again.
- Mahou Sensei Negima! had Rakan going into a (one panel) flashback to show how closely Negi's group of friends paralleled his father's group.
- Type 3 is repeatedly used in the Search for Tsunade arc of Naruto, comparing the titular character to Tsunade's old flame and younger brother, both of whom Naruto echoed by saying that becoming Hokage was his dream. For bonus points the arc showed the old flame echoing the brother and the brother bore a great physical resemblance to Naruto to amplify the comparison.
- In R.O.D the TV, the youngest of the Paper Sisters has a breakdown during a book-burning, since it gives her a very keen flashback to the incident that gave her a phobia against books in general — being trapped in a burning library.
- 3-gatsu no Lion has a Type 1. While Rei is treating Momo's arm for some bruises she received from falling down, he recalls the sight of the injuries and internal bleeding of the arm of his deceased sister's corpse and begins crying in response.
- During the first half of Space Pirate Mito, Aoi keeps having fractured flashbacks (maybe that should be a trope) from 11 years ago, when his mother took him into space and they were attacked by Ranban. The flashback is finally shown in full when he witnesses Mito and Ranban fighting in a similar fashion, and ends up subconsciously wounding Mito, due to not recognizing her true form all those years ago.
- Yu-Gi-Oh! combines this one with "I Know You're in There Somewhere" Fight. Yugi tries to get through to a possessed Jounouchi by giving him Yugi's Millennium Puzzle, and Marik immediately commands him to throw it into the sea to keep it away from Yugi. Jounouchi promptly flashes back to the beginning of his friendship with Yugi, when Yugi defended him from a bully even after Jounouchi stole a piece of the Puzzle and threw it in a pool. Even the possession can't get Jounouchi to do that again.
- When Five successfully hacks into Nine's computer in Terror in Resonance, Nine has a somewhat traumatic flashback of Five playing hide-and-seek with him in the institution. For a friendly game of hide-and-seek, Nine seems to be running away rather desperately, as if his life were in danger.
- Puella Magi Madoka Magica: During Episode 3, Homura arrives to help Mami defeat a Witch, resulting in Mami — who had previously told her they'd fight if they ever met again — tying Homura up with her ribbons. Homura's reaction is the first time she ever shows emotion in the series. In Episode 10 we learn that Homura was tied up once before, in an Alternate Timeline by Mami, who was about to pull off a triple murder suicide after learning the Awful Truth.
- Chapter Two of All Fall Down revolves around heroes (and Sophie) remembering the last time the Pantheon was truly heroic, involving a mission on the moon.
- In the Batman Confidential storyline "The First League", various events trigger Bruce Wayne having flashbacks to a meeting with a Chinese superhero group when he was travelling the world before taking the Batman identity. His first encounter with the Justice League of America leads to a Let's You and Him Fight situation that exactly parallels a training exercise with the Chinese team.
- In Mutant, this is combined with Happy Flashback to wrench all the pain she feels out for the reader.
- Waiting is worth it: Type 4. During Bakugo and Izuku's fight in the Tournament Arc, Bakugo accidentally hits Izuku in the head too hard. This leads to Izuku losing partial consciousness and briefly cancels out the gravity in the entire stadium. This reminds Bakugo of the first time he saw this - when they were kids at the moment when Izuku's quirk first manifests and when he became disabled - and has a minor freakout, trying to comfort Izuku and get him to regain control. He then spends the awards ceremony chained to a post, not because he had an easy victory like in the source material, but because he feels like he needs to be there for Izuku.
- After Kal-El's ship lands in Smallville, Man of Steel skips ahead to an adult Clark, so these are used several times to show his growing years.
- The killings start in Pieces when the killer witnesses a girl crashing through a mirror, as it reminds him of his mother breaking a mirror in the past before he killed her.
- Fatal Instinct, in a parody of Sleeping with the Enemy. Twice when Laura Lincolnberry sees some disarranged towels, she has a flashback to her abusive husband getting angry at her because of his obsessive need for everything to be perfectly arranged, including towels.
- Played Straight in A Fistful of Dynamite. John witnesses Dr. Villega betraying the resistance and pointing out members for the firing squad. He instantly recalls a similar event involving his friend Sean Nolan betraying him in Dublin.
- In We Are What We Are, Iris reads from the family diary (see also: Posthumous Character). Like Iris, the diary's author is the oldest daughter of the Parker family's pioneer ancestors. The girl's mother dies early on (similar to Mrs. Parker), and the father slowly loses his mind (similar to Mr. Parker gradually succumbing to Kuru). The father ultimately forces the eldest daughter to butcher her mother's body for food (similar to Mr. Parker forcing Iris to carry on the "family tradition" of cannibalism). The flashbacks are interspersed with present-day events: the pioneer family eating their "lost" uncle cuts to bacon frying in a present-day diner, and both fathers stumble around unsettlingly.
- In Harry Potter and the Chamber of Secrets, Dumbledore asks Harry, "Is there something you wish to tell me?" in such a way that it's suggested he knows whatever the "something" is and is trying to give Harry the opportunity to come clean himself. Later on he asks Tom Riddle the same thing in the diary flashback.
- Both Harry and Tom respond with the same "No, sir, nothing."
- The film takes this further and makes the exchanges word-for-word identical:
Dumbledore: Is there something you wish to tell me?
Harry/Riddle: No, sir. Nothing.
Dumbledore: Very well, then. Off you go.
- In Heart of Steel, Julia's blonde hair triggers the first of Alistair's flashbacks to another blonde woman he knew pre-amnesia. He doesn't realize they were separate women until much later.
- Journey to Chaos: Kallen Selios will occasionally flashback to her mana mutation and that of her sister when seeing someone else mutate. The new monster will inevitably attack her and thus forcing her to kill it.
Live Action TV
- In a season 4 episode of Angel, "Ground State", electro-girl Gwen Raiden electrocutes and kills Charles Gunn. She immediately flashes back to an event in her childhood in which she accidentally kills a boy she was making friends with. Shocked with herself, she revives Gunn within twenty seconds or so.
- Dexter flash-cuts back to the moment Harry found Dexter more than once - most notably, at the end of season four.
- Used often in Homeland to contrast Brody's time in captivity against his life at home. Since he's a Shell-Shocked Veteran, everyday events can trigger some very dark memories.
- Forever Knight does this Once an Episode (or more) with Nick flashing back to a situation earlier in his life which paralleled his current predicament.
- General Hospital: When he sees his then-lover Abby get nearly raped by her abusive ex Brandon, Michael has a Type 1 flashback to when he was raped in prison by an inmate and responds violently, nearly strangling Brandon to death until Jason shows up and pulls him off.
- Highlander: The Series uses this every episode. Immortals have centuries of memories to draw upon, and will invariably flash back to an event similar to the present.
- Kung Fu used it in almost every episode, with Caine remembering an incident or lesson from his time at the Shaolin temple.
- As did its successor series, Kung Fu The Legend Continues.
- Lost loves to do this. Nearly every episode of the first three seasons contains a flashback that usually has some relevance to what is currently going on in the episode, focusing on the central character for that episode.
- Torchwood did this in the first episode where an odd looking knife sparks Gwen's memory and overrides the amnesia drug she was slipped earlier.
- Dollhouse. A female doctor is doing a pelvic exam on Echo, causing her to flashback to kissing that same doctor when she was also one of the 'dolls' for the amusement of a client. Echo is understandably startled by the flashback, as all memories of what the girls do as a doll are (supposed to be) wiped from their memory after every session.
- Drake & Josh: At the end of the two-part episode "Really Big Shrimp", Drake and Josh fight over a piece of shrimp. Then, rather than flashing to a previous episode, the scene fades to Drake Bell and Josh Peck's first appearance on The Amanda Show, where they also fought over shrimp.
- In Stranger Things, Eleven and Hooper's dark backstories are gradually revealed through flashbacks triggered by events similar to their traumatic experiences.
- The Mrs Hawking play series: In part IV: Gilded Cages, a combination of Type 3 and Type 4.
- Nathaniel's resemblance to his uncle the Colonel means the former often makes Mrs. Hawking think of the latter, who is dead in the present but features in the flashback.
- The failure of Mrs. Hawking's efforts in the past as detailed by the flashback is significant to how the case she's working on in the present time of part IV turns out.
- In Killer7, during the final phase of Chapter Smile, Garcian can stop by each floor of the Union Hotel and see bloodstains at the same places where he, as Emir Parkeriner, killed (and assimilated as alternate personalities) the six people of the Smith Syndicate, who all happened to be staying there at the time, bringing back painful memories.
- Metal Gear Solid: Peace Walker, around 85% through the main storyline, after Snake attempted to chase down the Peace Walker whilst riding the Boss's horse, said horse breaks it's back after being thrown off an extremely steep hill, Snake (i.e. The Player) is then forced to euthanize said horse, before (or after, depending on how long the player takes to pull the trigger) Snake has flashbacks to the climax of Operation: Snake Eater, in which he was forced to finish off the Boss, whom was helplessly suffering from wounds attained in her previous battle with Snake, with a single round from her Patriot.
- In Metro 2033, Artyom has incidents of hearing voices and seeing things that are not actually there. At some point while walking through the ruins of the surface, he comes across an old and rusty playground where he experiences a freaky flashback echo. After a couple of seconds, the vision vanishes as quickly as it came and Artyom notices a Dark One who was stalking him for a while who was likely behind all that crazy stuff.
- He runs into several more of these in Last Light, but without the presence of the Dark Ones. The first is the vision of the crashing plane that he and Pavel get sucked into in "Echoes", and he has a bunch more in "The Dead City" that are triggered by seeing ghosts.
- After the three year timeskip in MOTHER 3, the first thing Lucas does is his morning routine of looking in the mirror, changing his clothes, and fixing his hair, which triggers a flashback of Hinawa brushing his hair when he was younger. Trying to leave the house before doing so will trigger the scene at the beginning of the game where Hinawa catches Lucas trying to leave the house in his pajamas.
- Shadow the Hedgehog has had numerous Flashback Echoes, both in Sonic Adventure 2, and his own game, in which one triggered a Flashback Level. Both Amy and Rouge have triggered them, as did once a blaring alarm, and seeing Prison Island again.
- In Xenogears, Elly is speaking to a mob of mutated humans, offering to sacrifice her body to them in order to ease their pain. In the middle of her speech, the game flashes back to Sophia, her previous incarnation, saying the same words.
- During the third episode of RWBY Season 4, Yang accidentally drops a glass and ends up flashbacking to the horrible battle with Adam Taurus when she lost her arm, which leaves her hyperventilating and visibly struggling to calm herself down.
- Kid Katydid from The Bug Pond. While she was on a mission to save a silk worm from a blue jay, she has a flashback of her first rescue in which she meets her to-be sidekick, Totter Tate.
- In Complicated Ness Type 1 and Type 2. In the novel the four notes have significant meaning to Ness' early life.
- A staple of Last Res0rt:
- Veled has a flashback to Cypress's mother, which (apprently) convinces Veled to spare Cypress.
- Cypress has one herself (explained here), but backfires given that instead of jumping into a pool of water (ala the flashback)... she jumps into some flesh-dissolving nanotech!
- Jason ends up having one to his own mother, with similar structure to Veled's earlier flashback.
- Kagerou Project: During the PV for Moon-Viewing Recital, mixes Types 3 and 4. First, when Momo accidentally steps on a cat's tail, she crouches down to try and comfort it - leading Hibiya to remember Hiyori doing the same thing. It happens again later when he sees some girls playing on the swings, which triggers a flashback of Hiyori sitting in the same place - triggering another flashback to later that day, when she died in a freak accident.
- A comedic and heartwarming example at the end of the same video; when Momo turns away from Hibiya, he grabs her hand. His reaction when he realises seems to imply that (due to the similarity of Momo and Hiyori's clothes) he forgot himself and grabbed her hand because he thought it was Hiyori.
- Mary has a traumatic variant near the end of Imagination Forest when Kousouke opens the door to her house; it causes her to remember the day she has attacked by teenage boys, and her mother turned one of them to stone - which in turn killed her.
- A common symptom in dramatic portrayals depicting war veterans suffering from Post Traumatic Stress Disorder.
- Really, anyone with PTSD could suffer the first and third points.