Created By: TPPR10 on March 12, 2017 Last Edited By: TPPR10 on 14 hours ago

Fusion/Merging Accident (Title Pending)

A fusion which does not go as planned at all.

Name Space:
Main
Page Type:
trope
"I know you decided on Gogeta, but in this particular form I think he looks more like Veku."

Fusions are cool. They allow two beings to merge together to create a stronger being. However, fusions are in practice incredibly dangerous. Was it done with science, biologically or through magic, even a slightest mistake can make the results be less than ideal if you're lucky.

How the fusion can result in a failure varies. Sometimes the result is a mesh of body parts or full of deformities. Sometimes the fusion at first looks fine but is actually incredibly unstable, and will fall apart at some point. Sometimes the fusion wasn't intended to happen in the first place, what just increases the chance of it being really wrong.

Note that just because the fusion isn't good, that doesn't mean it is so by a mistake. The fusion can be inheritably bad due of who is being fused with who.

One of possible results in a Teleporter Accident or in a case of a Tele-Frag, or a case of a faulty Merging Machine. Might result in a Clipped-Wing Angel situation. Shapeshifter Mashup may be the result of this, but just as often it's an intentional result. Compare Assimilation Backfire.

Indexes: One with the Index.

Examples:

    open/close all folders 

    Anime and Manga 
  • Fusions in Dragon Ball come in two varieties; Fusion Dance, and by way of the divine Potara earrings
    • Fusion Dances must be performed with incredible accuracy, and even as little as an unextended index finger will cause the Fusion Dance to go awry, leaving the two fusees in a body that is always comically weak compared to their intended result and have to wait out their the fusion's time limit. In a Shōnen series like Dragon Ball, fusions are often done in the midst of battle, leaving the malformed fusion to fight a foe it really cannot handle - as malformed fusions tend to be weaker than their individual parts.
      • Goten and Trunks intended to fuse to be able to fight the arc villain, and actually had the luxury of being in a safe position to practice their Fusion Dance - the first result was a malnourished, wheezy asthmatic, whilist the second attempt produced a bloated, out-of-shape fattie. Since then, they've got the Fusion Dance down to a tee, and thus haven't failed a single time since.
      • In the Non-canon movie Dragon Ball Z: Fusion Reborn, Goku and Vegeta intend to fuse to fight the villain of the movie. However, as Vegeta hasn't fused before then, he forgot to extend his index finger and the resultant fusion could only engage in a game of cat-and-mouse untill his Time Limit ran out.
    • Potara earring fusions are foolproof, and to fuse you need only have the two fusees wear one matching earring on opposite ears. If within range, they will fuse perfectly into a much more powerful fusion - and if at least one of the fusees is a Kai, the new fusion is permanent barring a wish to seperate from each other to the series titular McGuffin. If neither fusee is a Kai, the fusion instead lasts twice as long under regular circumstances as the Fusion Dance. But despite their foolproof nature, there exists two cases so far of Fusion going awry.
      • The first was mainly because it was never meant to happen in the first place: The elder Kai fused with an old witch who thought his earrings looked fancy, reached out, took one from him, and put it on her corresponding ear. By the time she reached for the second the fusion occured, and since one of them was a Kai, their fusion was permanent.
      • The second happened in Dragonball Super, between the immortal Kai Zamasu and his non-immortal Alternate Timeline self having Grand Theft Me'd the hero of the series. While their initial fusion definitely thrashed anyone who stood against it, it highlighted a flaw with the Potara earrings: If one of the fusees is immortal, and the other is not, the fusion suffers the biological equivalent of a Logic Bomb and begins to degrade with every injury sustained.
  • In the Lyrical Nanoha series, Fusion Dance occurs mainly with "Unison Devices": magical Robot Girls who are able to physically merge with the bodies of their Lords in order to dramatically boost their combat capabilities. However, if the Lord is incapable of handling the power of the Unison Device, the Device instead takes over their body completely and can use it as she sees fit. This is what happens in Magical Girl Lyrical Nanoha A's during the first Unison between Hayate and Book of Darkness/Reinforce: Hayate, still being a muggle at that point, has no way of controlling the Book through regular means, and is taken over by it.
  • Yu-Gi-Oh!: One episode has Yugi win a card game by fusing his monster with the enemy's different-type monster. As this isn't supposed to happen, the monster becomes weaker every turn.

    Comic Books 
  • Spider-Man: One of Spider-Man's most iconic foes, Doctor Octopus, came to be when scientist Otto Octavius was struck by radiation while wearing an advanced mechanical arms harness, causing them to fuse to his body and be controllable by his mind.

    Literature 
  • The Fly is a classic in terms of Teleporter Accident fusions, with Andre ending up having his hand and head switched up with that of a fly.
  • Captain Underpants: In The Big Bad Battle of the Bionic Booger Boy, Kid inventor Melvin attempts to fuse himself with an advanced robot of his own making, intending to turn himself into a bionic super-boy. But just as the fusion process is commencing, Melvin's cat allergies are triggered and he sneezes boogers out his nose, causing them to be fused as well and turning him into the Bionic Booger Boy.
  • Robert Sheckley has a short story (later expanded into a novel called Alchemical Marriage of Alistair Crompton) where a person who was split into several personalities with artificial bodies as treatment for schizophrenia seeks them in order to reintegrate. At the end, he finds them all and reintegrates... except they don't integrate into his personality, but create a completely new one.

    Tabletop Games 
  • Warhammer: Vilitch was the downtrodden younger brother of Thomin, apprenticed to the tribe's shaman while Thomin received the best warrior training in preparation for his becoming the tribe's chieftain. Vilitch prayed to Tzeentch that their fates might be switched. Instead, Tzeentch melded their bodies together, Vilitch casting spells and Thomin's body removing nearby threats. Vilitch saw no problem with this, using his newfound strength to enact a Roaring Rampage of Revenge against All of the Other Reindeer.

    Toys 
  • Mixels has one fusion option known as "Murps", where the result ends up a misshapen creature that still has the abilities of the original tribe members, but is unable to properly utilize them, often causing destruction to either themselves or to their environment.
  • BIONICLE: Inverted; Hakann uses the Spear of Fusion in reverse by accident, hitting Vezok and splitting him into Vezok and Vezon.

    Video Games 
  • Chaosmon from Digimon is a result of an incomplete DNA Digivolution between BanchoLeomon and Darkdramon/Valdurmon, leaving it with two Digicores instead of a combined one, and is considered a Game-Breaking Bug in-universe. UltimateKhaosmon is another example, this time being a fusion of BanchoLeomon, Darkdramon, Valdurmon and Kentaurosmon, which powers are too much to contain in one body, leaving with it being a withered out creature with four massive arms and two giant eyes which are actually two Digicores which it can't contain in its body.
  • In Shin Megami Tensei series, there is usually a chance that fusing demons ends up in a fusion accident. While the specific results vary, it usually results in you getting a completely different demon than what it really should have been.
  • In Disgaea 4: A Promise Unforgotten, Mao's Evil Transformation skill has him trapping his targets into a Merging Machine with a Slime, with the end result being a humanoid being wearing the Slime's skull. Which then explodes.

    Webcomics 
  • In Homestuck, Gamzee throws the dead bodies of his friends, along with some other dead characters in the alpha kids kernelsprites, which fuses two of them together as ghostly spirits. Most of them where too incompatible to exist, or committed suicide, though some of them worked out for at least some time.

    Web Original 
  • Whateley Universe: The Fury Twins, who merge into one being, but one time, they got stuck part-way defusing, and needed Mad Scientist help to get unstuck.

    Western Animation 
  • In SpongeBob SquarePants episode ''SquidBob TentaclePants, SpongeBob and Squidward get accidentally fused together in Sandy's teleportation device. In the end of the episode, everyone got fused together when Squidward tries to mess with an unfusion device.
  • In Steven Universe, some Fusions between Gems (which have their own personalities, while also being an amalgam of their component Gems) are very strong willed, and can overwhelm their components and refuse to defuse (Sugilite being an example early in the series, as she refused to separate back into Garnet and Amethyst and attacked Pearl in her first appearance).
Community Feedback Replies: 33
  • March 12, 2017
    BearyScary
    Does Goten and Trunks' initially failed fusion attempts in Dragon Ball Z count? The first two times they try to fuse, they get the Fusion Dance wrong just so, resulting in their Gotenks form being obese and then extremely thin. (I may have gotten the exact order wrong.)
  • March 12, 2017
    TPPR10
    I was thinking about that, but since I am not familiar with DBZ I wasn't sure what to specifically write in there.
  • March 12, 2017
    mariovsonic999
    There was one Spongebob Squarepants "Squid Bob Tentacle Pants" where Spongebob and Squidward were accidentally fused in Sandy's teleportation device. In the end of the episode, everyone got fused when Squidward try to mess with it.
  • March 12, 2017
    ZootyCutie94
    Mixels has one fusion option known as "Murps", where the result ends up a misshapen creature that still has the abilities of the original tribe members, but is unable to properly utilize them, often causing destruction to either themselves or to their environment.
  • March 12, 2017
    Jetace97
    Added a Page Quote from Fusion Reborn
  • March 12, 2017
    BlackSunNocturne
    Would the bad fusions (Malachite and the Corrupted Jasper Fusion) from Steven Universe count for this or no?
  • March 12, 2017
    MorningStar1337
    I dunno. Those seem to be intentional if unwilling (for one party) cases.

    BTW by any chance did the name come from SMT?
  • March 12, 2017
    TPPR10
    ^^Malachite would be more of a problem of Sharing A Body than anything. Corrupted Jasper Fusion would probably more of a "faulty y design", thought he post-fusion corruption would be noted.

    ^It was it of a coincidence.
  • March 12, 2017
    Koveras
    • In the Lyrical Nanoha series, Fusion Dance occurs mainly with "Unison Devices": magical Robot Girls who are able to physically merge with the bodies of their Lords in order to dramatically boost their combat capabilities. However, if the Lord is incapable of handling the power of the Unison Device, the Device instead takes over their body completely and can use it as she sees fit. This is what happens in Magical Girl Lyrical Nanoha As during the first Unison between Hayate and Book of Darkness/Reinforce: Hayate, still being a muggle at that point, has no way of controlling the Book through regular means, and is taken over by it.
  • March 12, 2017
    DustSnitch
    Does this trope only apply when characters attempt to fuse and then there is an accident? If that is the case, then The Fly example shouldn't apply, since it was an accident with an unrelated science experiment that accidentally resulted in fusion.
  • March 12, 2017
    Bisected8
  • March 12, 2017
    Getta
    This may also happen with a Merging Machine.

    Shapeshifter Mashup may be the result of this, but just as often it's an intentional result.
  • March 12, 2017
    Tuckerscreator
    • Captain Underpants: In The Big Bad Battle of the Bionic Booger Boy, Kid inventor Melvin attempts to fuse himself with an advanced robot of his own making, intending to turn himself into a bionic super-boy. But just as the fusion process is commencing, Melvin's cat allergies are triggered and he sneezes boogers out his nose, causing them to be fused as well and turning him into the Bionic Booger Boy.
  • March 12, 2017
    Malady
    Folderize...

    Web Original:

    • Whateley Universe: The Fury Twins, who merge into one being, but one time, they got stuck part-way defusing, and needed Mad Scientist help to get unstuck.
  • March 12, 2017
    TPPR10
    @DustSnitch: I want to count in cases where the fusion itself was due of an accident.
  • March 13, 2017
    Arivne
  • March 13, 2017
    Omeganian
    Robert Sheckley has a short story (later expanded into a novel called Alchemical Marriage of Alistair Crompton) where a person who was split into several personalities with artificial bodies as treatment for schizophrenia seeks them in order to reintegrate. At the end, he finds them all and reintegrates... except they don't integrate into his personality, but create a completely new one.
  • March 13, 2017
    KZN02
    Tele Frag may be a result of an unintended example of this.

    BIONICLE: Inverted; Hakann uses the Spear of Fusion in reverse by accident, hitting Vezok and splitting him into Vezok and Vezon.
  • March 13, 2017
    Chabal2
    • Warhammer Fantasy: Vilitch was the downtrodden younger brother of Thomin, apprenticed to the tribe's shaman while Thomin received the best warrior training in preparation for his becoming the tribe's chieftain. Vilitch prayed to Tzeentch that their fates might be switched. Instead, Tzeentch melded their bodies together, Vilitch casting spells and Thomin's body removing nearby threats. Vilitch saw no problem with this, using his newfound strength to enact a Roaring Rampage Of Revenge against All Of The Other Reindeer.
    • Yu Gi Oh: One episode has Yugi win a card game by fusing his monster with the enemy's different-type monster. As this isn't supposed to happen, the monster becomes weaker every turn.
  • March 14, 2017
    Theharbo
    ^^^^^^^^^^^^^^^^^^^ Added Dragonball examples.
  • March 16, 2017
    Arivne
    The title Fusion Accident could make readers think it's about accidents with nuclear fusion, like fusion bombs and fusion reactors.

    Fusion Dance Accident would be clearer, but would also be a Bad Snowclone because the reader would have to be familiar with the Fusion Dance trope.
  • March 14, 2017
    Theharbo
    ^Agreed. I initially thought that the trope was about fusion reactor melting down
  • March 14, 2017
    Getta
    Maybe "Merging Accident"?
  • March 15, 2017
    TPPR10
    Changed the title to an either/or to see which one is more popular.
  • March 15, 2017
    CactusFace
    • In Homestuck Gamzee throws the dead bodies of his friends, along with some other dead characters in the alpha kids kernelsprites, which fuses two of them together as ghostly spirits. Most of them where too incompatible to exist, or commited suicide, though some of them worked out for at least some time.
  • March 15, 2017
    Omeganian
    Misintegration?
  • March 16, 2017
    Theharbo
    ^ I see what you're doing. I like the pun, but it's really opaque - it could also mean something about immigrants not integrating properly into their new societies.

    Throwing in my twenty-five øre worth of names:

    Misformed Merging. Merging Mistake.
  • March 15, 2017
    Tuckerscreator
  • March 15, 2017
    Getta
    ^ No, it didn't happen "because nuclear fusion and biological fusion are apparently the same thing", but because the control chip of his tentacles got fried and malfunctioned while he worked on the fusion reactor.
  • March 18, 2017
    Tuckerscreator
    ^After the accident, the doctors mention the device fusing to multiple points on his spinal column, hence why they intended to saw it off of him and not just remove it. The control chip being broken was just the clincher on the accident. And the example mentions the comics version has them fused to him too.
  • March 20, 2017
    TPPR10
    I added the Doc Oct example, but I left out the movie detail.

    As for naming things, I personally vote against the Misintegration suggestion.
  • March 20, 2017
    Skylite
    • Alexandrite is another Steven Universe fusion that doesn't work well. She is the fusion of Garnet, Amethyst and Pearl. Their disinclination to collaborate smoothly is reflected in her monstrous appearance: her primary face lifts up to reveal a hideous one beneath. She has six arms. And although she is strong and can fuse individual Gem weapons into new fusion weapons, she is unstable and has a hard time keeping her fuse form together. Alexandrite is never formed by accident, but they save her as a weapon of last resort because of how hard it is to keep the fusion and how much it takes out of the Gems to form her.
  • March 21, 2017
    Astaroth
http://tvtropes.org/pmwiki/discussion.php?id=n2c9mmkihd68mtgg4ee2gzhv