Weird Crossover

"It's a boid... it's a plane... it's Wabbit season!"^Note  Both Looney Tunes and DC Comics are owned by Warner Bros., so this one isn't as loony as you may think.

"I'm sorry, can you go back to the part about Sonic the Hedgehog meeting MOTHERBLEEPING SPAWN?!"

—Boomstick, DEATH BATTLE!

There are Crossovers between works or universes which seem relatively logical, thanks to them being not too different. And then, there are these...

A Weird Crossover is an unlikely crossover between works different enough, be it in themes, tones (e.g. mixing something very dark with something very upbeat), genres (e.g. merging a Science Fiction or Horror franchise with one set in the normal world, or a specific superhero in a kind of setting he/she is usually not associated with), etc. It can be a full work, but there are many examples using it to create fake movie trailers. Also, there are examples of this trope serving to make a single In-Universe joke, the Weird Crossover work referred In-Universe being a Show Within a Show (or an unlikely project existing In-Universe). The trope is usually Played for Laughs, the joke being the unlikeliness of the crossover.

For obvious reasons (though official weird crossovers exist, sometimes involving universes inside the same franchise, shared copyright ownership, or Public Domain Characters), this trope is often restricted to Game Mods, Fan Art, Fan Fic, and various kinds of Web Original contents.

Of course, Tropes Are Tools is in full effect for these types of stories. A well-written Weird Crossover can be an engaging story that preserves the original spirit of both works in a new setting, while a poorly done one can create all sorts of Glurge and Mood Whiplash that clashes with the tone of the two respective works.

The opposite of Common Crossover, and a specific form of Crack Fic. Canonical (non fanwork) examples turn into Shared Universe. A Super-Trope to Demographic-Dissonant Crossover. Related to Crossover Cosmology. Sometimes leads to Fake Crossover. Can overlap with Intercontinuity Crossover, Massive Multiplayer Crossover, Unexpected Character, and Guest Fighter. When the unlikely combination is a mish-mash of generic creatures or concepts (instead of proper references to specific universes) it's a Fantasy Kitchen Sink or a Sci-Fi Kitchen Sink. Occasionally involved in Real Trailer, Fake Movie. Crossovers between works with very different tones and settings are often a Story-Breaker Team-Up.

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Works Examples:

Advertising

• The M&M's spokescandies have had multiple bizarre commercials that crossover with different brands to promote their products, including Star Wars, Pirates of the Caribbean, Shrek, Transformers, Indiana Jones, The Twilight Saga, Iron Man, Jurassic World, and of all things, GEICO.
• While Paramount Mountain's premise, commercials featuring different characters from Paramount's library isn't weird in of itself, it starts to get weird when characters from different demographics start interacting with each other. You could see a female puppet from Crank Yankers flirt with a Big Brother contestant, or watch Mr. Garvey chew out a bunch of kids show characters.

Anime & Manga

• Cells at Work! collab with the Japanese release of Tale of Food^note a raising sim RPG set in China, about traditional Chinese cuisine, and centering on the supernatural.
• The Gundam vs Hello Kitty Project was released to celebrate the anniversaries of both series.
• The Fist of the North Star mobile game, Legends ReVIVE has had multiple crossovers featuring series with their roots in martial arts such as Baki the Grappler, Street Fighter and Virtua Fighter. What was markedly not expected however was a crossover with, of all possible series, Sonic the Hedgehog celebrating the series' 30th anniversary.
• Isekai Quartet. The only thing in common with the shows that appear in the crossover is that they're isekai Light Novel series published by Kadokawa. Other than that, it's really weird to see the Emperor of Nazarick casually speaking with an ordinary human, a soldier and a a literal goddess.
• Moriarty the Patriot is a mashup of Sherlock Holmes and James Bond.
• In the combined 33rd and 34th issue of Weekly Shonen Jump magazine released on July 19, 2021, One Piece had a crossover with, of all things, Where's Wally? (More popularly known in North America as Where's Waldo?).

Comic Books

• Both the Alien and Predator franchises have had (separate) official Batman crossover comics.
• Perhaps not quite as weird as some of the others listed here but Ape Nation is a crossover between Alien Nation and Planet of the Apes. The premise is that the Tenctonese slave ship was sucked into a black hole and arrived on the ape-dominated Earth in the future, landing in the Forbidden Zone. Caan, the captain of the Newcomer ship, has conquest in mind and is opposed by his brother Danada who enters into an alliance with the gorilla General Ollo and a human named Simon, who has the ability to speak. Another major character in the miniseries is named Heston.
  • Boom! Studios crossed the Apes over with King Kong, Star Trek and Green Lantern.
• Archie Comics sometimes makes comics that clash their PG, family-friendly image with adult-aimed series:
  • Archie Meets the Punisher, which started off as an actual joke: then-Archie editor-in-chief Victor Gorelick was taking suggestions for a superhero crossover, writer Batton Lash jokingly suggested The Punisher, and then everyone across Archie and Marvel steadily realized it actually could work (even Lash was surprised when Gorelick took his pitch seriously). The final product is very much written as a tongue-in-cheek affair, with Frank Castle being the most out of his element in trying to adjust to the wholesomeness of the Archie-verse, and it was well-received and successful enough that it directly motivated the later crossovers below.
  • An Archie vs. Predator series started in 2015. It's a horror movie parody full of gorn and sexual situations parodying teen horror films, and is very clearly self-aware at the sheer absurdity of its own premise and just rolls with it.
  • The popularity of the above caused Archie Vs Sharknado to be created.
  • Sonic the Hedgehog (Archie Comics) has an issue where the colorful cast of Funny Animals have a brush with the dark, gritty '90s anti-heroes of Image Comics — complete with a brief appearance from Spawn. Even though this issue was released post-Cerebus Syndrome, crossing a series aimed at children over with such dark and mature (well, mid-'90s "mature") series raised some eyebrows even in its day.
• Even before Warner Bros. absorbed DC Comics, DC had the license to print Looney Tunes comics. In 2000, DC launched the four-issue series Superman and Bugs Bunny wherein the wacky Dodo meets Mr. Mxyzptlk, and they form a partnership to wreak havoc on both universes.
  • 2017 had another round of DC/Looney Tunes crossovers. Of particular note was Batman/Elmer Fudd, which focused on how they're not that different and both trapped in a neverending battle with a chaotic enemy (the Joker and Bugs Bunny, respectively).
  • Another DC/Looney Tunes crossover made around the same time paired Jonah Hex with Yosemite Sam and Foghorn Leghorn.
  • And let's not even get started on the oddity that is Superman Meets the Quik Bunny.
  • DC's Hanna-Barbera Beyond franchise has given us such gems as a Suicide Squad/The Banana Splits crossover.
• Lobo's Paramilitary Christmas Special - aka "Lobo vs Santa" - features Lobo being hired by the Easter Bunny to whack Santa Claus.
• There is a very old Disney comic story called "Thumper meets the Seven Dwarfs", where Thumper the rabbit encounters the Seven Dwarfs from Disney's Snow White and the Seven Dwarfs, and Friend Owl and Flower also appear, and they even encounter the giant from a Mickey Mouse cartoon Brave Little Tailor!
• Comic tie-ins for the Star Trek (2009) universe had a couple odd crossover choices: DC's Star Trek meets Green Lantern, IDW's Star Trek meets Legion Of Superheroes, Boom! Studios' Star Trek meets Planet of the Apes... for a lot of them, the only thing the two properties had in common was that they'd both gotten a recent reboot or film revival.
  • Prior to that, Marvel put out two Star Trek / X-Men crossovers, one as a comics miniseries and one as a novel.
• When Dynamite Comics owned Evil Dead, they did some very weird crossovers. Ash meets the Cthulhu Mythos? Well, okay, they both feature a book called the Necronomicon. Ash meets Darkman? Okay, both Sam Raimi creations. Ash meets Xena: Warrior Princess ^note  Which seems to exist only to poke fun at the fact that Bruce Campbell played Autolycus , or Vampirella? Weird.
• Spider-Man once helped Cap'n Crunch battle the Soggies, though the conclusion to the story was never published.
• In Brazil, Monica and Friends, a very popular comic book franchise for kids, had a series of official crossovers in 2018 with the Justice League heroes and their antagonists.
  • The Monica Teen spin-off manga also crossed over with the Justice League for two issues during the same period. While a Monica Teen/Justice League crossover seems less weird in theory, the weirdness in this case comes from the fact that not only the stories in the two issues are not related to each other, but they also contradict each other in several instances (for example, issue #25 establishes that the Justice League comes from an Alternate Universe, while in issue #26 all characters exist in the same universe and Monica and her friends have seen the Justice League saving the world for a long time).
  • Speaking of Monica Teen, they have also previously crossed over with Osamu Tezuka's characters, which also managed to show Sapphire, Astro Boy and Kimba the White Lion interacting with each other, despite coming from different works from Tezuka.
• My Little Pony/Transformers: Friendship in Disguise!: Granted, they're both owned by Hasbro and have comics published by IDW, but still, this is a comic where giant fighting robots interact with cute talking ponies.
• Scooby-Doo! Team-Up, in which the Mystery Inc gang meet a new DC Comics or Hanna-Barbera character each month, from classic characters like Batman, Wonder Woman, and The Flintstones to more obscure ones like Hong Kong Phooey or Angel and the Ape.
• One Garfield strip had him joining the Teenage Mutant Ninja Turtles because he wanted to eat their pizzas, they saw through his disguise when Odie tagged along, he had a turtle shell on his tongue, they beat them up and kicked them out of their lair.
• With no fanfare, DC Comics dropped a six-issue, Larry Hama miniseries adapting two classic arcade games created by Midway Games in the 80s. Which ones? Spy Hunter and...Paperboy.
• Marvel Comics once had the license to print comic books based on The Ren & Stimpy Show (the patron saint for the Grossout Show genre). This led to a crossover issue between Spider-Man and Powdered Toast Man because, according to the front cover, "NO ONE demanded it!", apparently.
• Eminem Vs The Punisher, a 2009 collaboration between Marvel and XXL Magazine.
• During 2013, IDW held a company-wide Cross Through event featuring Mars Attacks!, as the Martians invaded the universes and timelines of five different series they've all published back then. Some of those were decidedly weird matchups, namely Ghost Busters, KISS and even Popeye!
• An 80s Marvel Crisis Crossover, The Evolutionary War, involved the High Evolutionary, normally an Avengers/X-Men villain. At the time Marvel was doing a comic based on the sitcom ALF — and they decided to get ALF involved in the crossover too.

Fan Works

• Batman: Dead End is a fan film about Batman meeting a Xenomorph and a Predator while pursuing The Joker in Gotham City.
• Comic Book SNAFU is a Massive Multiplayer Crossover featuring (among others) characters from Marvel Comics, DC Comics, Fairy Tail and...Yu Gi Oh5ds.
• Announcements of the Walt Disney Company buying Marvel Comics and the Star Wars franchise gave birth to a lot of Fan Art showing Mickey and Co. dressed as Marvel or Star Wars characters.
• Dinotracker has a series of fanart involving the girls of the idol series Love Live! in the setting and roles of the Jurassic Park films.
• Exaggerated in the fan video The Incredibles Get Sick!, which is a crossover between The Incredibles, Tangled, Zootopia and Doc McStuffins.
• Laverne and Shirley Meet the Force is a crossover between Laverne & Shirley and Star Wars.
• The Many Worlds Interpretation is Terry Pratchett's Discworld meets The Big Bang Theory. Magic meets science, a flat earth intrudes on the physics and cosmology of a spherical one, dysfunctional intellects clash in the context of a university full of egotists and oddballs...
• Mortal Kombat vs. The Owl House: A kids show like The Owl House crossing over with a violent M-rated video game franchise like Mortal Kombat would qualify as one.
• From the mind of author Peter Guerin, we got The Misery Senshi Neo-Zero Double Blitzkrieg Debacle and Return of the Lawndale Militia, which both involve Daria crossing over with Sailor Moon in the former, and Gunsmith Cats, Riding Bean and Here is Greenwood in the latter. An unproduced third instalment would’ve brought back Sailor Moon, along with The Real Ghostbusters and You're Under Arrest!.
• Muzski created a series of Tintin cover pastiches merging Tintin's universe with the Cthulhu Mythos.
• Ned Flanders in Madagascar: Subverted. It appears to be a crossover between Madagascar and The Simpsons, but it turns out that Marty was on drugs and tripped the whole thing.
• Neon Genesis EvangeléMon is a crossover between Neon Genesis Evangelion and Pokémon. It turns out to be an in-universe movie that the cast of the Pokemon anime are watching.
• Old-Fashioned Remedies is an inappropriate My Little Pony: Friendship is Magic fanfiction which features Boba Fett from Star Wars.
• Peter Chimaera's Digimon 3: Predator Vs Digimon is a Troll Fic, which, like the title suggests, features a Predator fighting a Digimon. After their fight, they work together to unveil a sinister Government Conspiracy involving the FBI.
• Stars Above, a crossover between Lucky Star and Madoka Magica... in which utter strangeness and impossibility of these two series crossing over is part of the plot.
  • By one of Stars Above's co-authors, there's also Respect, a What If? story crossing over Madoka Magica and Smile Pretty Cure!... and it's played for all the Nightmare Fuel possible.
• Top Hats and Tigers, a crossover between Calvin and Hobbes and Professor Layton.
• Touken Danshi and The Order Of The Phoenix: It's Harry Potter meets Touken Ranbu. What pushes it further still into this territory is the completely serious and unironic attitude the fic plays this wacky premise out.
• Until the End of Time crosses over Anne Frank's The Diary of a Young Girl with Dragon Ball. It culminates in Goku taking down Hitler and marrying Anne.
• Final Stand of Death has Danger Dolan and other random viewers watching what is clearly Celebrity Deathmatch FIC, with a group of souls taking over new armor, i.e. Mecha, and tracking down the one who destroyed original bodies. Those in Script Form gives clues on who can it be, but who’ll be The MacDuff to The MacBeth in the case.
• All Good Truths is a Kingdom Hearts crossover where Xemnas and Xigbar travel to the world of Tailchaser's Song. One is a Disney JRPG and the other is a fantasy adventure novel about cats.
• Thanks to sharing a release date (and to the fact that they have nothing else in common otherwise, which made for an amusing juxtaposition), Doom Eternal and Animal Crossing: New Horizons received a number of pieces of crossover fanart featuring Doom Slayer and Isabelle hanging out together.
• Zach I Hate You is a crossover between Mias World and Tally Hall. It has lots of action, some Unusual Euphemisms, and a Random Events Plot that involves the the Tally mafia and gangs. Defies logic on every level to the point where the author points it out frequently.
• Infinity Train: Blossomverse mixes Pokémon and Infinity Train, which is already rather strange, but then Infinity Train: Blossoming Trail Act 2 onwards adds, of all things, Silent Hill to the mix.
  • The prequel story Infinity Train: Knight of the Orange Lily is also a Pokémon and Infinity Train crossover with Yu Gioh VRAINS (albeit the latter is justified as the author has been shown to have a fondness for Specter) and wrestling (Paul London is in his Lucha Underground incarnation).
  • Finally, Infinity Train: Voyage of Wisteria has a storyline where the Apex kids have to be dragged into the The Hazbin Car.
• Infinity Train:
  • Infinity Train: Boiling Point mixes Infinity Train with The Owl House, which is already kinda weird, since they're at opposite sides of the genre spectrum (The former is a horror fantasy comedy, the latter is a supernatural sci-fi anthology). Then you add Infinity Train: Blossoming Trail into the mix, and you know this trope's in play.
  • Infinity Train: Star Finder crosses Infinity Train and The Loud House, two series which are way apart in tone and genre (mature supernatural sci-fi and slice-of-life comedy, respectively).
  • While Infinity Train: Seeker of Crocus is a re-telling of Blossoming Trail, one of its side stories is one of the most bonkers crossovers of them all. Rey Mysterio vs the Cosmos is set in the world of the upcoming cartoon Rey Mysterio Versus La Oscuridad combined with Lucha Underground and Kikai Sentai Zenkaiger with Pokémon and Infinity Train being in the background.
• The first few chapters of OSMU: Fanfiction Friction has the Mobile Unit visiting Metropolis in order to have an adventure worthy of making into a fanfic form, mixing Odd Squad with Superman. This is a staple trope of the author's works, as he has other fanfics that mix Odd Squad with other media like Bewitched and Scooby-Doo.
• So there's a picture of◊ Mami Miura from The Island of Giant Insects being placed in 1984 by George Orwell. If Mami was terrified of gigantic, man-killing bugs, imagine how horrified for her to be in a dystopian dictatorship that is Oceania? We bet she would be utterly horror-stricken to deal with the Big Brother's totalitarian control (to top it all, she's an Idol Singer in the source material).
  • That said, its likely Mami would be able fight the Ingsoc party, if the manga's sequel is any intention, though the victory would be near-impossible to achieve, due to the Thought Police.
  • It is also said that the hypothetical game would be H-Game, again wouldn't be far too off for Mami's side of the crossover (only instead of Ecchi would be fully fledged hentai one). Perhaps Mami's sexual tactics would be much more vigorous, forceful and aggressive than she did with Matsuoka in the source material (which would give a devastating blow to the world she is placed in, since pornography in 1984 is either bad, forbidden or straight up Fan Disservice)^note  Ironically, it is depicted to be a Super Nintendo Entertainment System game, something Nintendo wouldn't allow at least until late 90s, unless if it's a bootleg..

Films — Animation

• The trailers for Lilo & Stitch mix between the original film, Beauty and the Beast, Aladdin, The Little Mermaid and The Lion King. They show Stitch interfering with the other movies' Signature Scenes before he gets scolded.
• The LEGO Movie mixes several LEGO licensed universes. While Batman is a major character, there are many cameos and One Scene Wonders involving DC Comics characters (Superman, Green Lantern, Wonder Woman, etc), Albus Dumbledore, Han Solo, Chewbacca, C3PO and Lando Calrissian, Gandalf the Grey, Michelangelo, etc. It is a rare example when the crossovers receive an In-Universe justification: The Reveal tells that the animated part of the movie actually represents the imagination of a boy playing with his father's own LEGO collection.
• Tom and Jerry: Willy Wonka & the Chocolate Factory is proof that sometimes, Tropes Are Not Good. The Tom and Jerry Direct to Video film series has been going in this direction for a while now, working the classic cartoon slapstick duo into Twice Told Tales with the likes of Sherlock Holmes, Robin Hood, The Wizard of Oz, and Jonny Quest, but those were seen as harmless and went under the radar of various reasons.^note Sherlock Holmes and Robin Hood are both deep in the Public Domain. Jonny Quest is, like Tom & Jerry, a Hanna-Barbera original, and the company has always been notoriously crossover-happy. The Wizard of Oz was where things started to get iffy, but the film's longevity and the fact that the two originated under MGM gave the crossover some precedent. Crossing over with Willy Wonka & the Chocolate Factory, however, had no such benefit, resulting in fandom snark, coming from the idea of Tom & Jerry being needlessly shoehorned into classic cinema.
• Happy Halloween, Scooby-Doo! features Mystery Inc. meeting the Scarecrow— only in a first for a crossover involving Batman characters, Bruce Wayne himself isn't around to help, but instead said help is from Bill Nye and Elvira. And Crane isn't even the main villain, but a Red Herring who happens to be an Elvira fanboy.
• DC Showcase Sgt Rock sees the titular Sgt. Rock working with the Creature Commandos.

Films — Live-Action

• Crazy Safari, a crossover between The Gods Must Be Crazy, a zany South African satire about the lifestyle differences between an isolated African tribe and some bumbling Westerners... and Mr. Vampire, a supernatural horror-comedy about a killer Chinese Vampire.
• Venom (2018) and Persona 5 had a collaboration for the film's Japanese release.
• Ted and Danganronpa: Trigger Happy Havoc had a collaboration due to the film and The Anime of the Game getting DVD releases around the same time. Other than that, the only thing the two have in common are talking teddy bears.

Literature

• The Mr. Men series of children's picture books launched a Spinoff line in 2017 crossing over its art and storytelling style with the characters and typical plots of Doctor Who, the live-action Science Fiction TV franchise. Also counts as a Fake Crossover, but with real tie-in merchandise!
  • Another Spinoff line was launched in 2019, this time crossing over the Mr. Men art and storytelling style with the adventures of the Spice Girls.
• Paul Kline's Sherlock Holmes and the Servants of Hell crosses the great detective over with Hellraiser.
  • Holmes gets hit with this a lot, since he's both immediately recognizable and free for anyone to use. He's especially popular in licensed novels, for some reason; a good example is his appearance in the Victorian segments of the Final Destination book Destination Zero.

Live-Action TV

• The Halloween crossover between Bones and Sleepy Hollow. Bones is largely reality based forensic science, albeit with a little Artistic License and any paranormal stuff is Maybe Magic, Maybe Mundane territory, while Sleepy Hollow was a fantasy series inspired by the book, that was heavily based in the supernatural. The Bones was pretty mundane aside from Ichabod trying to find a convincing explanation for Brennan of why his handwriting perfectly matched a letter to George Washington written in the 1700s. The Sleepy Hollow half had the remains that had been retrieved from the lab re-animate and Ichabod and Abby had to fight the guy while Booth and Brennan conveniently missed seeing anything that would shake up their characterizations, particularly Brennan’s.
• In Boy Meets World, professional wrestler Vader appears as the father of Frankie and Herman. His name on the series is Francis Albert Leslie 'Frankie' Stechino, Sr., while the Real Life Vader is Leon Allen White.
• Scott Bakula had a season or so long arc guest starring on Murphy Brown as Murphy's love interest, and they almost got married. In Bakula's last episode, he leaves the newsroom bullpen via elevator and you see him glowing blue as if he's leaping.
• Odd Squad: A CBBC promo for Season 2 crosses the show over with, of all shows, Stranger Things. Perhaps unsurprisingly, the promo has never been released outside of the UK, only being seen on CBBC's website, and has gotten no recognition by Netflix.
• Sanford and Son. A crossover with Hawaii Five-O is heavily invoked in "The Hawaiian Connection" trilogy. While Fred and Lamont get caught up in a diamond smuggling ring that's being investigated by the actual Five-O, references to Steve McGarrett (famous hair and all) are made throughout, implying that in-Sanford-universe, McGarrett actually works for the actual Five-O.
• A Saturday Night Live sketch from 1999 involved a humorous crossover between Seinfeld and Oz, in which Jerry Seinfeld is incarcerated at Oswald State Correctional Facility, where he casually chats about prison life with Tobias Beecher, Vernon Schillinger, Ryan O'Reilly, and Augustus Hill.
• Star Trek: Strange New Worlds crosses over with Star Trek: Lower Decks in Star Trek: Strange New Worlds S2E07 "Those Old Scientists". While both shows are in the Star Trek Universe, one is an old school, earnest live action show and the other is an aggressively silly animated show. The episode sees two animated characters get sucked into the live action show and played by the actors who voice them.
• The Supernatural episode "ScoobyNatural" crossed over with an old episode of Scooby-Doo, Where Are You!. While both series share the common ground of featuring paranormal investigators, Scooby-Doo is a kids' show and Supernatural really isn't. In fact, some of the conflict comes from the Winchesters trying to shield Mystery Inc. from the nastier stuff that the latter aren't equipped to deal with.
• In the The X-Files episode "X-Cops" the producers of an episode of COPS run into Mulder & Scully while filming one of their episodes and end up following them as they investigate one of their cases.

Music

• At one of the stranger points during the 60s, The Monkees and Jimi Hendrix toured together. Apparently, the thinking behind this was that the Monkees were trying to increase their cool cred, while Hendrix was trying to get more mainstream popularity. Needless to say, the tour did not go well, mainly because the audiences were primarily made up of screaming young girls.
• Bing Crosby and David Bowie singing Christmas music together. Could there be two more dissimilar musicians in any universe? For bonus points, the cheesy banter of the christmas special quickly gives way to a pair of master musicians creating a beautiful blending of old and new sounds.
• Rave.DJ allows the user to input any two YouTube videos of reasonable length to create a mashup, allowing a Weird Crossover between any two songs. Do you want to combine Rotary Dial and Bubblegum Bitch? Not only has it been done, but it works surprisingly well.

Music Videos

• The music video to Fall Out Boy's "The Carpal Tunnel Of Love" is a crossover with Happy Tree Friends, a cartoon where the entire joke is adorable animal characters dying in various gorey ways. The music video stays true to this theme by featuring the characters (including Funny Animal versions of the band) all dying in true HTF fashion.

Podcasts

• This is the entire premise of Interstitial: Actual Play, which takes the initial idea of Kingdom Hearts (Final Fantasy and Disney characters crossing paths to save the world) and ramps it beyond what one could possibly imagine.
  • The first season restricted items to only the aforementioned two domains but still managed to create a plot involving Marche Radiuju, a slacker version of Roxanne, and OC Edith teaming up with Criss Angel Mindfreak to stop the Organization XIII. They travel through the worlds of High School Musical, Power Rangers RPM, Sonic the Hedgehog, and Lost—and the last of which is where things get real weird.
  • A Touch of Evil is the first of the one-shots in which there are no longer any limits. Shego and Homura Akemi fight Kim Possible and keyblade master Fred Andrews in Riverdale in order to kidnap Archie.
  • Reality and Other Falsehoods: Tony Hawk, Owen Wilson, and Papyrus travel to the world of Tamriel to fight Cell.
  • A Rush of Sugar to the Head: Azula, Cinder Fall, and Morton Koopa travel to Sugar Rush to help King Candy destroy Vanellope.
  • Lonely Souls: Calumon and Bright Eyes (from the "Total Eclipse of the Heart" music video) travel to Twin Peaks to free Mycaruba and Party Poison.
  • 2 Family 2 Furious: Amelia Earhart, Brian o'Connor, and Caesar Zepelli must fight against Lucky Lindy and Bray Wyatt to save Matt Hardy and Problem Sleuth from being destroyed.

Roleplay

• Insane Cafe Series has Wataru, Dr. Zanasiu, Scooby-Doo, Guilmon, Spyro the Dragon, and Nani as main characters... and that's only the tip of the iceberg!
• NoPixel has included, among others, Carl Crimes, Diego, Tom Nook, Johnny Silverhand, and Plankton all co-existing alongside fairly "normal" original characters and realistically monstrous characters.

Pro Wrestling

• In 1999 SFX Motorsports began building WCW themed monster trucks. Chad Fortune of The Pit Crew Tag Team and Madusa were the only wrestlers who drove their own trucks and since WCW buried both of them, they became more famous as monster truck drivers than pro wrestlers, especially Fortune, who retired from wrestling completely. Madusa still appeared on the shows of World Wonder Ring ST★RDOM, National Wrestling Alliance, RISE and such, even if her driving commitments prevented her from wrestling on them.
• The year was 1990. WCW aired the pay-per-view Capitol Combat, which involved, alongside some genuinely excellent matches, Sting being rescued from the Four Horsemen by... Robocop?
• Quite a few reality shows have crossed over with pro wrestling shows. Dana White: Lookin' For A Fight going with UFC and or Jerry Lawler's Memphis Wrestling isn't so weird. Jackass(Fake Crossover with TNA), Jersey Shore(actual crossovers with TNA and Juggalo Championship Wrestling), Survivor(With Impact Wrestling and Ring of Honor only being its most notable examples) are very weird. In-Universe, the Dave Prazak and Lenny Leonard were embarrassed to see Johnny Fairplay in the ring.
• While Kaiju Big Battel is technically staying in the same genre when it crosses over with other pro wrestling promotions, it doesn't happen very often for very good reasons. Even when those wrestlers come from other "weird" promotions like Pro Wrestling ZERO1, Chikara or Dramatic Dream Team(for escalating levels of weirdness) they still tend to stick out like sore thumbs, to say nothing of the mostly regular wrestlers working for the WWN family promotions.

Tabletop Games

• Interstitial: Our Hearts Intertwined is designed to facilitate these, as one can imagine from the actual play described in the podcasts folder above. The mission statement is to play as existing characters, throw them together, and take them to worlds contradictory to their own.

Toys

• Companies behind Shoddy Knockoff Product action figures frequently package together characters from different unrelated entertainment brands, resulting in very weird team ups. A good example is the Sense of Right Alliance, which posits a teamup between Cars, Batman, Fantastic Four, The Incredibles, Power Rangers, Shrek, Spider-Man, and Superman.
• Which is not to say that official products don't indulge in some weird combinations themselves, such as Transformers x Evangelion. See TFwiki for more info
• Transformers especially loves to do these sorts of things. Brought to a head with the Transformers Collaborative line of toys, which includes both fairly reasonable crossovers with the likes of Back to the Future or the X-Men, and some that boggle the mind, like... Jurassic Park, Top Gun, and Dracula?

Video Games

Commercial Video Games

• Black Desert Online, a fantasy MMORPG, has had some relatively normal collaborations with the dark fantasy manga Berserk and short-lived fantasy streaming series Cursed. In 2021, coming straight out of left field is a collaboration with Bugatti, (yes, that Bugatti that makes exotic cars) complete with bright blue Bugatti "B"-emblazoned costumes for your character and its Cool Horse. One has to imagine how many MMO players the cross-promotion enticed into shelling out at minimum $3 million USD for their next automobile purchase.
• BlazBlue: Cross Tag Battle, Arc System Works trying its hand at a Mascot Fighter, came out of nowhere by combining BlazBlue (a series thought to be on hiatus after its Grand Finale), Persona 4: Arena (an era thought to be finished in the wake of Persona 5), Under Night In-Birth (a game that wasn't even very popular in Japan, and is extremely obscure outside of it), and finally, RWBY (which made waves as an American-made Animesque Web Animation series), in its roster. A fifth series, Arcana Heart, which features Moe-styled female characters, was added later on. In the 2.0 update, Senran Kagura and Akatsuki Blitzkampf joined the fun as well.
• Broforce stars a who's who for all sorts of action movies and TV shows... sorta. It's Downplayed in that they're all technically Lawyer Friendly Cameos, but the copious Rule of Cool quotient keeps players from being too hung up on that detail.
• Capcom vs. may be the Trope Codifier within video games. The flagship series Marvel vs. Capcom may be a big name now, but at the time, the sight of a bunch of martial artists slugging it out with the X-Men had to raise a few eyebrows and created some playground and online debates. Capcom challenging anime giant Tatsunoko Production in Tatsunoko vs. Capcom is another crazy example.
• Cookie Run Kingdom is a building sim RPG based off of Cookie Run, an Endless Runner about living gingerbread men. While the crossover with Disney made sense (as they're all about sweets, wonder, and childhood innocence) the second crossover with BTS doesn't as it depicts all seven members of Korea's number one boy band together (with all members playable and voiced!) as adorable cookies, which is not even counting the fact that BTS are real-life celebrities crossing over.
• Crystal Crisis is a puzzle game containing characters from a widely disparate group of franchises. It includes several indie game characters like Quote and Curly Brace, Aban Hawkins... Isaac, Astro Boy, and Johnny Turbo, the defunct TurboGrafx mascot!
• One type of item in Dota 2 replaces the lines of the game's default announcer when equipped, and these are sometimes crossover items. These go from the expected (Dr. Kleiner from Half-Life, GLaDOS from Portal) to the unexpected (Adam Jensen from Deus Ex: Mankind Divided, Mister Handy from Fallout 4, Wayne June from Darkest Dungeon, Rucks from Bastion, the Narrator from Trine, the Narrator from The Stanley Parable, and Rick and Morty). There's also a HUD theme item based on Portal and a loading screen item based on Final Fantasy Type-0.
• Drawn to Life: SpongeBob SquarePants Edition. You take the concept of Drawn to Life and its aspect of drawing pretty much anything and having it appear in the game, and then you apply that to the world of SpongeBob. At least this still works because of DoodleBob.
  • There's also SpongeBob Diner Dash, though this one is less weird because of SpongeBob's link through cooking with the Krusty Krab and the Krabby Patty.
• DreamMix TV World Fighters is described as "the only crossover where every character is an Unexpected Character", and for good reason. It's a Mascot Fighter featuring Konami, Hudson Soft (before the latter's merger into the former) and Takara (the overseas equivalent to Hasbro), which results in the likes of Simon Belmont, Solid Snake, Bomberman, Optimus Prime, Tyson Granger, Licca-chan, and so on joining to battle.
• One "official" mod for The Elder Scrolls V: Skyrim (official in the sense that it was written by Bethesda and Valve, albeit mostly as a joke) has the Space Core from Portal 2 crash-land outside Whiterun.
• Family Guy: The Quest For Stuff: Various events have seen the cast of Family Guy joining forces with the crew of the Enterprise, the Justice League, the Power Rangers, the Men in Black, and many more. A mostly up-to-date list is available here.
• Final Fantasy:
  • In Final Fantasy All the Bravest, a mashup of Final Fantasy locations, bosses, monsters and characters co-exist in the same setting without much context as to why. Final Fantasy Record Keeper attempts to justify this with an initial Excuse Plot involving paintings, which has been expanding significantly over the years.
  • Mario Sports Mix and Mario Hoops 3-on-3 feature characters from Final Fantasy and Dragon Quest as unlockable characters. Needless to say, it's rather odd to see characters like the Slime, Black Mage and Moogle play traditional sports (emphasis on traditional) against Mario and friends. Thankfully, most of the characters got redesigned to fit more into the Mario universe.
  • Final Fantasy XIV and Fall Guys. Yes, really. This went both ways by adding a Final Fantasy themed battle pass to Fall Guys.
  • A free piece of Downloadable Content for Final Fantasy XV mashes up the fictional world of Eos with the history-based Assassin's Creed series.
  • Final Fantasy Brave Exvius has an arm long list of crossovers, from the most obvious choices (Kingdom Hearts, Dragon Quest, World of Mana) to the somewhat unexpected but that still make sense (Xenogears, NieR: Automata, Octopath Traveler, Valkyrie Profile, Star Ocean: Integrity and Faithlessness, Chrono Cross, Parasite Eve), the ones that happened because Square Enix is somehow involved as either the developer or publisher (Deus Ex: Mankind Divided, Tomb Raider, Just Cause 3), to non-game properties that still involve the company (Fullmetal Alchemist) to the ones that came out of the blue (Katy Perry, Ariana Grande, Addison Rae).
    • War of the Visions: Final Fantasy Brave Exvius, by contrast, doesn't go too overboard with its crossovers (except for Addison Rae), but still ended up receiving one with Persona 5.
• In recent years Fortnite has become the master of this type of crossover. While most collaborations are with immensely popular brands such as Marvel, DC Comics, Naruto, etc., crossover-magnets like Street Fighter and Predator, or tie-ins to contemporary big name releases and revivals, some of them come completely out of left field, such as Kelsier and El Chapulín Colorado.
• The normally semi-realistic Forza Horizon 3 goes a bit crazy with its cross-promotional second Downloadable Content expansion and includes a set of islands full of twisting and looping Hot Wheels stunt tracks, as well as some life-sized, driveable Hot Wheels cars.
  • Forza Horizon 4 also goes this route, making its second expansion LEGO-themed.
• Funko Pop! Blitz, being based on the multi-franchise toyline of the same name, features a variety of pop culture characters as playable characters, often leading into weird combinations, from Universal Studio Monsters to General Mills cereal mascots to the Care Bears. And they all can appear on the same game boards together!
  • The same applies to the board game Funkoverse. Most Funkoverse sets revolved around various sci-fi or fantasy franchises like Batman, Harry Potter, Jurassic Park, and Game of Thrones; but then there were a few featuring things like Aggretsuko and even The Golden Girls.
• Genshin Impact once had a crossover with Horizon Zero Dawn. While both are Open-World games, one is a Chinese Fantasy Gacha Game, while the other is a Amsterdam Science Fiction Future Primitive with Humongous Animal Mecha as wildlife.
• Harvest Moon:
  • Harvest Moon is a farm simulator with heavy life sim elements. Popolo Crois is a JRPG series. Naturally they received a crossover — though it's more PopoloCrois with a Harvest Moon edge — named Return to PopoloCrois: A Story of Seasons Fairytale. It's quite different from the normal Harvest Moon, being a bit more like sister series Rune Factory but not featuring the marriage system signature of either series (as the protagonist is a Kid Hero).
  • Doraemon: Story of Seasons is a Harvest Moon title featuring Doraemon characters.
• I=MGCM: The collaboration event with The Quintessential Quintuplets is quite surprising, as The Quintessential Quintuplets is a casual light-hearted Romantic Comedy about a tutor with his quintuplet students, while I=MGCM is an Urban Science Fantasy about Demon Slaying magical girl warriors. It's got lots of Fanservice, and some Darker and Edgier moments that edge into Magical Girl Genre Deconstruction. When the story begins, the quintuplets are in Kamisaman's other White Room, communicating with Omnis and his heroines through the computer in the quintuplet's White Room.
• On its most basic level Kingdom Hearts is essentially "Disney meets Final Fantasy". In reality the Final Fantasy characters are essentially cameos loosely based on their original characters, while the main cast is a series of FF-esque Original Generation characters. There are also oddball crossovers such as Donald Duck interacting with the cast of TRON. All of this is wrapped up around a story involving the Original Generation which is infamous for being confusing (and before the PS4 collections, hard to keep up with thanks to initially coming out of wildly different platforms and story details often being locked to certain international releases), and much darker than your average Disney cartoon.
• The King of Fighters All Star, a mobile Beat 'em Up, did a crossover with WWE in 2020 that featured characters like The Rock and The Undertaker as playable characters.
• LEGO Dimensions takes The LEGO Movie's crossover concept and ramps it up. The game's story mode alone has Batman, Gandalf the Grey, and Wyldstyle visiting, among other things, Munchkinland, Springfield, 1885 Hill Valley, and Aperture Science. Even more franchises were added through updates for the next two years.
• Metal Gear Solid 3: Snake Eater featured a bonus minigame where Solid Snake is assigned capture a bunch of escaped monkeys from the Ape Escape series. In turn, Ape Escape 3 featured a bonus mini-game where the player controls a monkey named Pipo Snake who must rescue Solid Snake.
• Nicktoons MLB: A baseball video game starring various Nickelodeon characters? Not bad. Adding Real Life Major League Baseball players into the mix? Now, that's crazy!
• PAYDAY 2 had a crossover with Goat Simulator of all things. This went both ways by also adding a PAYDAY 2 based DLC to Goat Simulator.
  • The fact that Ethan and Hila of h3h3productions are in the PAYDAY universe as themselves is also worth mentioning.
• The farmland level of Pizza Tower includes Mort the Chicken as a "special guest". For some reason. What's even weirder is the way this character even appeared in the game: the creators of Pizza Tower simply asked for permission to add Mort the Chicken to the game, and their response was a "sure, why not?".
• Pokémon Conquest is a crossover between Pokémon, a very light and idealistic, ultra-popular Mons series, and Nobunaga's Ambition, a real-time strategy game about Sengoku-era Japan which is obscure outside of its own country. Turns out, the CEO of the Pokémon Company had been a big fan of the Nobunaga's Ambition series, and in turn the CEO of Koei Tecmo had been a big fan of the Pokémon series, which is how this even happened in the first place.
• PowerWash Simulator sure is taking you to places you wouldn't expect to go clean up stuff. You got Croft Manor, Midgar, and even Bikini Bottom.^note The first two probably happened because Square Enix is the publisher of the game, and Square Enix isn't shy about doing cross-game promotions (see FFBE above). Oh yeah, and Warhammer 40,000 is included in there too, and you even get to clean up the DeLorean for good measure.
• Puzzle & Dragons frequently has "collaboration" events featuring crossover characters, the full list of which can be found by following the link. In the case of Puzzle & Dragons: Super Mario Bros. Edition, this became its own standalone game.
• If you thought Katy Perry being in a Final Fantasy game was weird enough, then have we got a story for you: the mobile game Ragnarok Origin once had an event centered around Psy. Yes, the K-pop star responsible for "Gangnam Style."
• Rock Band has always had a wide scope in what kind of music it considers eligible for its track-list, and that becomes very clear with the inclusion of SpongeBob SquarePants tracks for the show's Milestone Celebration.
  • An episode of South Park had a brief gag where Cartman sang "Poker Face" by Lady Gaga on Rock Band. Thing is, Rock Band didn't have "Poker Face" on their track-list at the time, so the devs added that song in response through Downloadable Content... both the original version and Cartman's version.
• Sonic & Sega All-Stars Racing and its sequel went bonkers with their non-Sega characters, each of them being unrelated to Sega as much as they are unrelated with the other guests. There's the platform-exclusive characters, Banjo & Kazooie (Xbox 360), Miis (Nintendo), and Pyro, Heavy, and Spy from Team Fortress 2 (PC), but it gets weirder from there. Wreck-It Ralph is also a racer, and this was way before his sequel where he met Sonic. Then there's also Yogscast, a group of content creators that primarily cover Minecraft, and the weirdest of them all, Danica Patrick is there to cross-promote NASCAR and the game.
• Sonic the Hedgehog:
  • Sonic Dash had special events featuring characters from Angry Birds Epic and Hello Kitty. In the case of Angry Birds, it went both ways and Epic had its own Sonic Dash event. Sonic Dash also received a crossover with the Pac-Man franchise, which oddly enough features the final official appearance of Ms. Pac-Man, due to the legal limbo that character is in.
  • Sonic also crossed over with the Yoshi's Island and The Legend of Zelda franchises in Sonic Lost World, including meeting the Link from The Legend of Zelda: Skyward Sword in the latter, though the weirdness is tempered a bit due to all three franchises having been in the Super Smash Bros. series prior.
• Soul Series:
  • Each version of Soulcalibur II features a unique Guest Fighter. The Xbox port featured Spawn, who was a bit of an odd duck compared to the other two guests, the GameCube port's Link and the PlayStation 2 version's Heihachi Mishima.
  • Soulcalibur IV went a step further and included guests from Star Wars. To be fair, Star Wars is set "a long time ago in a galaxy far, far away", but having Mitsurugi cross blades with Darth Vader didn't make the inclusion feel any less bizarre.
• Street Fighter X Mega Man probably counts: It's a Mega Man game, where instead of Robot Masters, Mega Man fights the World Warriors from Street Fighter.
• Super Mario Bros. has had several strange crossovers, including:
  • A Mario DanceDanceRevolution game, called Mario Mix.
  • Crossing Mario and Sonic the Hedgehog isn't too weird, as they're longtime rivals in similar genres. Crossing them both in the Olympic Games, however, is.
  • Similarly, Mario has crossed over with Dragon Quest characters... in Fortune Street, an investment board game.
    • Other Fortune Street titles have had Dragon Quest and Final Fantasy together, which like Mario and Sonic at the Olympic Games wouldn't be too weird if not for the game genre of the crossover itself.
  • Mario + Rabbids Kingdom Battle, as the name implies, revolves around a portal opening up over the Mushroom Kingdom and unleashing the Rabbids upon Mario's world. Thus, Mario, Luigi, Peach, and Yoshi team up with four good Rabbids dressed like them to rid the kingdom of the Rabbids' usual brand of chaos before it screws it up beyond compare.
  • There's also Hello Kitty and Shaun the Sheep appearing in Super Mario Maker.
• Super Smash Bros.:
  • Smash Bros. brings together many of Nintendo's franchises and a number of other gaming greats, which range from cartoony all-ages series (Super Mario Bros., Kirby, Pokémon) to serious, more realistic fare (The Legend of Zelda, Metroid, Fire Emblem). On the extreme ends, Metal Gear and Persona deal with adult issues and have tons of social commentary and Bayonetta is sexed up to the point that some consider it a parody, while Animal Crossing is a conflict-free Funny Animal life sim and Wii Fit is a fitness program.
  • The trailers have been known to highlight the dissonance on occasion. The Super Smash Bros. Ultimate reveals for both Ridley and Sephiroth showed them seeming to graphically slaughter Mario, while Kazuya's involved him disposing of the bodies of other fighters (though Sephiroth's was explicitly a Bait-and-Switch and Mario was not actually harmed).
  • A good example of how diverse the series is comes from the Hero from Dragon Quest and Banjo-Kazooie, both revealed at E3 2019 for Ultimate. Dragon Quest is a JRPG series which is relatively obscure series in the West, but over in Japan it's a cultural phenomenon comparable to the likes of other video game juggernauts like Halo and Super Mario Bros. Meanwhile, Banjo-Kazooie is a platformer game developed by Rare, a Western developer now owned by Microsoft, is fondly remembered by many people who grew up with a Nintendo 64, and the eponymous characters have been highly requested for Super Smash Bros. as fighters since the first Smash game came out back in 1999. Many took note of contrast between the two after they had been revealed.
• Tokyo Mirage Sessions ♯FE is an interesting example. A crossover between Fire Emblem and Shin Megami Tensei already seemed pretty out-there, but the final game ended up being weird by virtue of not being very much like either series: instead being a Lighter and Softer, Denser and Wackier game about idol singers that just happened to have some SMT mechanics and Fire Emblem characters.
• As of 2020, there are Tamagotchi virtual pet toys themed around Neon Genesis Evangelion. The toys let you raise an Angel from the dramatic, serious, action-packed, and not-very-kid-friendly Evangelion anime, one of the last things one would expect the kid-friendly, cutesy, feminine, and not-very-action-packed Tamagotchi franchise to cross paths with.

Non-Commercial Video Games / Fan Games / Game Mods

• Dead Island
  • The game has the Fist of the Dead Star mod, which alters the game's physics and unarmed combat mechanics, allowing the protagonists to hit very fast and very hard while running very fast and jumping very high, thus turning them into alternate versions of Kenshiro. Of course, someone made a montage of gameplay footage with music and sound effects from the anime adaptation (the music is the opening theme of the French version).
  • It becomes even funnier when you realize that unarmed combat specialist John Morgan, the new player character of Dead Island: Riptide, has actually been created as a reference to this mod.
• The The Elder Scrolls V: Skyrim modding community includes several My Little Pony: Friendship is Magic mods, as well as Spider-Man and even Thomas & Friends ones.
• Equestria at War is a Game Mod combining the detailed WW2 political and military simulation of Hearts of Iron with the colourful world of My Little Pony: Friendship is Magic, where the show's characters are thrust into conflicts that must be solved like a true wars rather than with the magic of friendship. Like a true crossover, our world's politicians and generals that would appear in Hearts of Iron and its mods are present as well, albeit with modified names and the bodies of fantasy creatures, but they otherwise interact with the world and MLP's characters with their real-life personalities and ideals.
• Fallout 3 and Fallout: New Vegas have Star Wars and Batman themed-mods. You can also replace Mr. House with Dr. House.
• Pulp Adventures averts this in its main campaign. The mod's description mentions Conan the Barbarian, Zorro, and the Lone Ranger and Tonto as playable characters alongside a long list of fictional characters from the Thirties (Indiana Jones, Doc Savage, The Rocketeer, The Shadow, Jungle Jim, Dick Tracy, etc.), but it turns that Conan, Zorro, and the Lone Ranger are only playable in special missions representing the protagonists of the main storyline reading books. On the other hand, the Rumble Room mode (custom game) allows any combination of characters in the player's party, and the crossover can be even weirder since all the characters from the unmodded game (basically an Affectionate Parody of The Silver Age of Comic Books) are available too.
• Super Smash Flash is a Super Smash Bros. Fan Game infamous for including the likes of Original Characters and anime characters. The first game has a justification via Serendipity Writes the Plot; it started out as a Sonic the Hedgehog Fan Game that got retooled into a Smash Bros. fan-game, and had to use whatever sprites were available at the time for its roster. The Surprisingly Improved Sequel Super Smash Flash 2 was initially planned to go in largely the same direction, including more content and features from the official games while adding a handful of Original Characters and anime characters (specifically from Shonen Jump due the existence of Jump Ultimate Stars providing high-quality sprites to use), until the head of the project realized just what kind of potential the game was capable of midway through development, and retooled it into a more high-standard game. That meant that all the Original Characters were scrapped from the game, and the Shonen Jump characters would've been as well if not a few of them (Ichigo, Naruto, and Son Goku) already being coded into earlier demos, and stayed in by Grandfather Clause. Eventually, Monkey D. Luffy was added to the roster due to popular request and to round out the selection of Shonen Jump fighters.
• In Wolfenstein Vs Street Fighter, B.J. Blazkowicz fights his way through Street Fighter II themed levels and shoots soldiers that are Ryu.
• Curious Expedition is a Roguelike where the player character is a Historical Domain Character competing against four others to be the most famous explorer, the four contenders being player characters randomly chosen at the start of the campaign. There's several mods adding new player characters, including fictional characters, some of them being from vastly different work (also clashing with the Vanilla characters, who are all 19th and 20th historical characters). Since the contenders are randomly chosen from both Vanilla and mod characters, depending on the mods installed you may have Sherlock Holmes (and Watson), Scrooge McDuck (with Huey, Dewey, and Louie), John Rambo, and Rincewind.^note All of them are actual character mods available on the Steam Workshop Or any combination between mod fictional characters and historical Vanilla ones, such as Mad Max, Lara Croft, Charles Darwin, Marie Curie, and Sir Francis Burton^note the three latter are Vanilla characters. The Vanilla characters are arguably an historical equivalent of this: some of them weren't even alive at the same time (Charles Darwin / HP Lovecraft, for instance).
• CMC+ is a standalone Game Mod for Super Smash Bros. Crusade, a Super Smash Bros. Fan Game developed with open support for modding - while Crusade is designed from its inception to have a roster that could pass for an official Smash one with a few exceptions, CMC+ embraces the unlimited potential imagination of character mods such that its developers' only criteria for roster inclusion is mod quality control. This lets the game go completely ballistic with its crossover weirdness, surpassing even that of the first Super Smash Flash: Not only does it have more Original Characters and non-video game characters than the first Super Smash Flash, it showcases the bizarre side of crossovers upfront with the addition of Crack Fic fighters such as parodic interpretations of Barack Obama, Ronald McDonald and Colonel Sanders. And even when putting the Crack Fic characters aside, its roster runs the gamut from whimsical, family-friendly cartoony fare (A Hat in Time and Garfield on top of the Smash Nintendo mainstays) to dark and depressing tales for adults (NieR: Automata, Puella Magi Madoka Magica), and from pop culture juggernauts and social phenomena (Halo, Marvel Comics, Among Us) to forgotten obscurities and properties that have completely fallen by the wayside of relevance in The New '20s (Monster Tale, Blue Dragon, My-HiME).
• Rakenzarn Tales is a massive crossover fangame that any character from any series can join in. It's essentially Kingdom Hearts meets Super Smash Bros. meets Super Robot Wars. Some choices are typical but some come off as a little funny. We have the obvious choices like Looney Tunes, Disney, Super Mario Bros., Sonic the Hedgehog, and Final Fantasy. Then we have the strange choices like Queen's Blade and DIDNapper, just to name a few.

Web Animation

• The fondly-remembered "The Ultimate Showdown of Ultimate Destiny" includes the likes of Godzilla, Batman, Shaquille O'Neal, Aaron Carter, Abraham Lincoln, Optimus Prime, Jackie Chan, Indiana Jones, a Care Bear, and the Memetic Badass himself, Chuck Norris. That's not going into the cameos appearing in the chorus lines, or The Cavalry needed to take down Chuck Norris. Oh, and the winner was Mister Rogers.
• JoJo's Bizarre Adventure and the Disney Animated Canon are on complete opposite extremes of tone and content in animation, so a fusion of the two? See JoJo's Bizarre Adventure: One Cartoonist's Dream. The next thing you'll say is, "That's ridiculous!" And you would be wrong, but also right.
• See also a MikuMikuDance video of the JoJo's villains performing "Maji Love 1000%".

Web Original

• Goldenmoustache Le groupe Facebook SECRET des Grands Méchants ("The Big Bads' Secret Facebook Group") is made of fake Facebook screenshots with comments of real-life dictators (Adolf Hitler, Josef Stalin, Mao Zedong, Kim Jong-Un, Saddam Hussein, etc.), current controversial personalities (Marine Le Pen, Jérôme Kerviel, etc), and fictional villains (Darth Vader, Sauron, the T-Rex from Jurassic Park, Jafar, Shredder, Hannibal Lecter, etc).
• On the French Internet, the announcement of Omar Sy having a supporting role in X-Men: Days of Future Past led to a recurrent joke about Omar Sy playing the same character as in Intouchables, now hired by Professor Xavier as his care-giver.
• The Wild Mass Guessing pages on this very wiki are occasionally guilty of this when imagining connections between totally unrelated works and universe (especially when trying to create connections with Doctor Who).

Web Videos

• Der Disneygang is a crossover between the characters from the Hitler Rants meme and the Disney Universe. In this crossover, Hitler legally buys the Disney brand, allowing him to rule over Disney with an iron fist. His arch nemesis Hermann Fegelein does not like this and starts a revolution against the Nazis.
• The parodic French webseries Flander's Company is set in an universe in which appear very thinly veiled Lawyer Friendly Cameos of various Marvel Comics and DC Comics characters, Darth Vader, Mario and Luigi, Harry Potter, Naruto, etc. The supervillains' highest authority seems to be a council featuring Lex Luthor, Magneto, Doctor Doom, and Darth Vader.
• Intouchables (Feat Drive) is Intouchables opening's scene, with the soundtrack replaced by the Drive (2011) opening theme.
• Wes Anderson's The Shining (AKA The Grand Overlook Hotel), is, you guessed, a fake trailer mixing The Shining and The Grand Budapest Hotel.
• Trololol S.T.A.L.K.E.R. is gameplay footage of S.T.A.L.K.E.R.: Shadow of Chernobyl (the Agroprom area) edited to sound like the famous Trololol Song was among the Zone's anomalies.
• Pooh's Adventures: The series has many characters from completely different genres.
• The Life And Times Of Bully Demise starts as a playthrough of various MDickie games, but culminates in a a crossover between games like Virtue's Last Reward, [MODE], Spy Fiction, and more, all under the banner of professional wrestling.

Western Animation

• Bambi Meets Godzilla. Exactly What It Says on the Tin.
• Each episode of The New Scooby-Doo Movies has the Mystery Machine gang meet up with one or more people from out-of-universe, potentially from anywhere. Though most are simply celebrity guest stars, other franchises that have crossed over with this series include Batman, The Addams Family, The Three Stooges, Josie and the Pussycats, and The Harlem Globetrotters. Each time, the villain comes from the guest star's universe or at least fits their theme. It's notable that encountering mystical characters like Jeannie or the Addams Family doesn't faze Velma in the slightest. Scooby and his friends' tendency to meet up with characters from other random series gets parodied in Johnny Bravo when he runs into them and he proves to be much less useful than any of the previous crossover characters.
  • The Spiritual Successor Scooby-Doo and Guess Who? has seen team ups with characters such as Urkel from Family Matters.
• Batman: The Brave and the Bold usually teamed Batman up with other DC Comics characters, but sometimes it went a little further out; bringing in Sherlock Holmes and Dr. Watson, the cast of Scooby-Doo, "Weird Al" Yankovic, Space Ghost, and Jeff "The Roastmaster" Ross.
• The Emmy Awards committee produced Cartoon All-Stars to the Rescue, and had it simulcast on all three networks on Saturday 21 April 1990. The well-intentioned but hopelessly hamfisted effort to discourage drug abuse roped in characters from Disney, Warner Bros., DiC Entertainment, Jim Henson, ALF, Garfield... Few studios were spared, resulting in a What Were You Thinking? hodgepodge production.
• Surprisingly averted with Fred and Barney Meet the Thing, an hour long cartoon block in 1979. Hanna-Barbera's Fred Flintstone and Barney Rubble never meet Marvel Comics' The Thing from Fantastic Four. The show paired a half hour of The New Fred And Barney Show with another half hour of Ben Grimm, who could use his "Thing Ring" to transform from normal human to living rock being and back, contradictory to Marvel canon. Obviously, the show's title is a complete misnomer.
  • The show was later renamed Fred and Barney Meet the Shmoo. However, they didn't meet the Shmoo either, the little creature once again having its own separate segments. The trope was finally played straight in the later The Flintstone Comedy Show series, where they did actually meet the Shmoo in the Bedrock Cops segment, which features the three as part-time cops.
• Lilo & Stitch: The Series had crossovers with Kim Possible, American Dragon: Jake Long, Recess, and The Proud Family, thus connecting them all into a Shared Universe of a Fantasy and Sci-Fi Kitchen Sink. This is especially strange for the latter two shows which are pretty much Slice of Life shows.
  • However, Recess did have Santa Claus actually existing along with the movie showing off various high level sci-fi equipment including a tractor beam while The Proud Family did have two episodes involving a Deal with the Devil with a Faustinian cariacature of Al Roker, the superpower granting Proud Scary Snacks in their Halloween special and their own film involving mutated peanut people. Suddenly, the crazier moments of Magical Realism make a lot of sense.
• OK K.O.! Let's Be Heroes:
  • "The Power Is Yours!" is a crossover with Captain Planet and the Planeteers, an infamous Edutainment Show from The '90s.
  • "Monster Party" has the girls from Scooby-Doo and the Ghoul School as childhood friends of Enid.
  • Sonic & Tails even shows up in the show! Apparently, Sonic is a famous hero in this universe.
• The South Park Imaginationland trilogy uses this as a part of its premise. Since the story is set in an alternate dimension created from the imagination of humanity, most of the supporting characters are already existing fictional characters. The rulers of Imaginationland are the Council of Nine, which members are Aslan the Lion, Gandalf the Grey, Glinda the Good Witch, Jesus (who is shown in Imaginationland despite existing in the South Park universe), Luke Skywalker, Morpheus, Popeye, Wonder Woman, and Zeus. The Evil side includes, among others, Jason Voorhees, Ganondorf, the ghosts from PacMan, Darkseid, etc. A more exhaustive list of Imaginationland characters can be found here.
• The Steven Universe episode "Say Uncle" is a crossover with Uncle Grandpa, which is Denser and Wackier than Steven Universe. The episode begins with a declaration that this is a Fake Crossover, and ends with Uncle Grandpa running down a checklist of other CN series he's visited — and the SWAT Kats: The Radical Squadron are on the list, too.
• Agent Scully and Agent Mulder of The X-Files appear on The Simpsons when Homer reports seeing an alien.

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In-Universe Examples

• Les Inconnus use this trope at a point in the skit "Les Escarres".^note literally "the bedsore", it's actually a pun about the Oscars and their French equivalent the César Awards One of the speeches given during the ceremony is spoken by a fake Japanese moviemaker, saying that his company has future movie projects with titles like Return of Jean Valjean and Bioman, and Cyrano de Bergerac Versus Teenage Mutant Ninja Turtles.
• Cracked sometimes publishes articles about unlikely crossovers which actually have been made:
  • 6 Comic Book Crossovers You Won't Believe Actually Happened is focused on official (i.e. non fan-made) crossovers whiche are: Batman/Sherlock Holmes, The Punisher/Eminem, Jesus Versus Zeus, X-Men/Star Trek, Spider-Man and Iron Man/Guiding Light, and Superman/Absolutely Anything (the article refers to crossovers with Masters of the Universe or the Quik Mascot, of all things).
  • 5 Insane Pop Culture Crossovers That Almost Happened is a What Could Have Been variant of the previous one, since it focused on official crossover projects which eventually didn't happen: Ghost Rider/Casper the Friendly Ghost, Rocky Balboa/G.I. Joe, Quantum Leap/Magnum, P.I., and Jay and Silent Bob/Hellraiser.^note The fifth one isn't an actual crossover but the aborted concept of the third Jaws movie initially supposed to be a National Lampoon film
  • And then, there are several articles about surreal sex scenes taken from fanfics (not necessarily all involving crossovers, though they often do). Including one (n°5) about Severus Snape having sex with the Teletubbies.
• In the Futurama episode "The Impossible Stream", one of the shows seen while Bender is flipping through the channels is Alien vs. Predator vs. Bluey. The former two being horror films and the latter being a preschool show.

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