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Massive Multi Player Crossover
Let's see... Optimus Prime, Tyson, Master Higgins, Bomberman, Yugo, TwinBee, Simon Belmont... just to name a few.

"So many heroes from so many dimensions! This is pretty cool!"

A crossover that involves characters from more than two works of ficton. More often than not, this is a mash up of series which do not have a strict sense of continuity or a clear Universe Bible. To lessen canon-faulting, especially with series that do have strict continuity, a new 'neutral' setting is made that offers equal footing for all the characters. It also becomes more viable the farther you get from canon, such as one-time TV specials and especially video games. As Story Arcs have become more prevalent, this practice has somewhat lessened, with shifts to strict Verse building and explicit references.

This rarely occurs in live action shows, unless a production company can be formed that holds copyrights to everything. Thus, this is much more common in animated works — although you can generally expect The BBC to pull one out of somewhere when Children in Need or Comic Relief rolls around.

This trope has become increasingly common in video games, especially those involving both licensed and original properties. These games, depending on how far or how deep they mine, can have interesting effects on the fiction chosen. Many long-gone and/or forgotten Humongous Mecha shows, for example, often get a new lease on life, or even a brand-new sequel or remake, after making an appearance or two in a Super Robot Wars game. Similarly, the Fire Emblem series was finally brought over to the US to great success after two of its characters made an appearance as unlockable fighters in Super Smash Bros. Melee.

This trope is Older Than Feudalism. The Argonautica by Apollonius Rhodius (3rd century BCE) features nearly every ancient Greek mythical hero all going on a quest to find the Golden Fleece.

Sub Tropes:

See also Power Creep, Power Seep and Story-Breaker Team-Up. All Stories Are Real Somewhere is related.

Examples with sub-pages

Examples without sub-pages

    open/close all folders 

  • A MasterCard commercial featured several food mascots (from Count Chocula to the Pillsbury Doughboy) eating dinner — with Mr. Clean doing the dishes.
  • USA Network's commercials play this for laughs, having various combinations of characters from their shows (Burn Notice, Monk, Psych, others) encounter each other and make idle conversation.
  • UK example: The Greatest Minds In Advertising Join Forces in a 2009 viral for Comic Relief.
  • The Met Life insurance company has released an ad featuring characters from "Peanuts," "Looney Tunes," Hanna-Barbera, and many other animation studios.
  • An advertising campaign for Krystal has a red-haired girl, a clown, and a guy in a creepy mask passing up their respective restaurants to get some food from Krystal.
  • The Origin promo for Toonami Asia seems to imply this, as we're shown characters from Justice League Unlimited, Ben 10, and Generator Rex all existing in the same universe, before the end of the Age of Superheroes happened.

    Anime & Manga 

    Comic Books 


    Mythology and Religion 
  • The Argonautica (more commonly known by the adaptation Jason and the Argonauts) by Apollonius of Rhodes (3rd century BCE) is one of the very first Massive Multiplayer Crossovers, arranged in what would become a fairly classic method — basically throwing one or two dozen heroes from various separate Greek myth cycles together on a boat with a common mission. This of course makes the Massive Multiplayer Crossover Older Than Feudalism.
    • Many of the same characters also appear in the story of the Kalydonian Boar Hunt - which, Depending on the Author, may occur before or after The Argonautica.
  • According to some religious studies texts, this has also gone on in many, many other myths: the most notable involve various saints meeting each other. This goes on even today.


  • The BBC Radio 4 series The Rivals is a series of adaptations of various Victorian detective stories by people who weren't Arthur Conan Doyle, based on the short story collections The Rivals of Sherlock Holmes edited by Hugh Green. What makes the radio series a Massive Multiplayer Crossover rather than a sequence of unrelated dramas is that Inspector Lestrade is added to every story as The Watson, placing them all in the same Verse.


    Stand Up Comedy 
  • There's a Star Trek-related comedy routine in which Mr. Spock, HAL 9000, and Obi-Wan Kenobi all appear on Jeopardy, in a mental variant of an Ultimate Showdown of Ultimate Destiny. Kenobi is declared the winner, but only because he uses the Jedi Mind Trick on Alex Trebek.
  • Stand-up comedy troupes sometimes feature a series of comedians who usually headline their own shows:
    • The Original Kings of Comedy
    • The Blue Collar Comedy Tour
    • The Comedians of Comedy

    Tabletop Games 

  • Seussical has characters from several of Dr. Seuss' books

    Web Original 

    Western Animation 

Mary Sue TropesFanfic TropesMate or Die
Magnum Opus DissonanceCreator SpeakMethod Acting
Limited WardrobeThe Dark Age of AnimationMotionless Chin
Isometric ProjectionVideo Game GenresMeta Multiplayer
Marked BulletOlder Than FeudalismMatriarchy
Lawyer-Friendly CameoCrossover IndexModular Franchise
DreamMix TV World FightersImageSource/Video GamesDuck Hunt

alternative title(s): Massively Multiplayer Crossover; Mega Crossover
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