History ComicBook / SonicTheHedgehogMegaManWorldsCollide

** The crossover is facilitated by Eggman and Wily using the Genesis Wave from the ''Sonic Genesis'' storyline to rewrite both their realities. In-universe, it allows them to prepare both their worlds to their liking, with the side-effect (as WordOfGod [[http://www.bumbleking.com/forum/viewtopic.php?p=332986#p332986 says]]) of shifting the ''Mega Man'' timeline (along with Wily's memories) forwards to after a version of ''VideoGame/MegaMan10''. Out of universe, it allows Archie to suspend all currently-running story threads, temporarily [[ExiledFromContinuity exile]] nearly all comic-original characters on both sides[[note]]It should be noted that both doctors state that they can't use the Genesis Wave to wipe someone out of existence or fundamentally change who they are, so it can be assumed that they still exist in the altered timelines and simply won't be getting involved in the events of the crossover.[[/note]] (which new readers that are picking up the book for the first time would be ''not'' familiar with), make the world of ''Sonic'' be closer to the games (which new readers that are picking up the book for the first time would be ''more'' familiar with) and use ''Mega Man'' characters that haven't had a chance to appear yet in the main storyline.

** [[spoiler:The crossover ends with the two heroes Chaos Controlling their respective worlds to restore them. The Mega Man universe more or less returns to its original status quo, with no one able to remember the crossover beyond vague recollections. The Sonic universe, meanwhile, will apparently have far more reaching alterations. The crossover between Mega Man and Mega Man X reveals that the reason they don't remember is that it happens in their ''future''.]]

* RememberTheNewGuy: Due to Eggman and Wily's Genesis Wave rewriting history, Mega Man's dimension is moved from their current time to a time after VideoGame/MegaMan10. Because of this, characters like Duo[[note]]Who has yet to debut.[[/note]] and Bass[[note]]Who had only made cameos in Short Circuits.[[/note]] are treated as if they had known Mega Man for a while. It also spoils that Proto Man[[note]]Who was working for Wily, under the name Break Man.[[/note]] becomes a good guy and that [[spoiler:Ra Moon betrays Wily. Which it does after the crossover ends.]]

* LoadsAndLoadsOfCharacters: Over 90 Robot Masters from the classic ''Mega Man'' series make an appearance in the crossover. The only ones who don't are the Stardroids and Sunstar.

* AbsenteeActor: Despite every main series Robot Master, Mega Man Killer, and Genesis Unit member appearing in the crossover[[note]]even Quint has a small cameo with Big the Cat[[/note]], [[VideoGame/MegaManV the Stardroids]] are completely absent for the entire crossover. Though since Dr. Light lists them among Wily's schemes that backfired on him (and considering who created them in this continuity), there's likely a very good reason he left them out.
** Because the crossover only focuses on the video game characters, virtually all of the comic-exclusive stars from both franchises are completely absent. [Mecha] Sally only makes a brief appearance in Eggman's ImagineSpot.

* EleventhHourRanger: [[spoiler:The MM1 Robot Masters are absent until the final battle, where they show up to help Sonic and Mega Man's friends to defeat the large wave of other Robot Masters.]]

%% * EleventhHourSuperpower: Of the GoldenSuperMode variety.

[[http://www.polygon.com/2014/10/7/6938879/worlds-unit-in-mega-man-sonic-crossover-series A sequel]] was announced for 2015, entitled ''[[ComicBook/SonicTheHedgehogMegaManWorldsUnite Worlds Unite]]'', which involves the worlds of Sonic the Hedgehog, Mega Man, WesternAnimation/SonicBoom and VideoGame/MegaManX. It began in June 2015 with Sonic #273, Sonic Universe #76, Mega Man #50, and Sonic Boom #8, with a prequel story in Sonic Super Special #14.

Though there aren't any full video game crossovers between Sonic or Mega Man, they both appeared in the 3DS, Wii U and Ultimate installments of ''VideoGame/SuperSmashBros''.

For nearly twenty years, Archie Comics had published the [[ComicBook/SonicTheHedgehogArchieComics comic adventures]] of one Franchise/SonicTheHedgehog. Likewise, they had similar success bringing [[VideoGame/MegaManClassic Mega Man]], the Blue Bomber, to [[ComicBook/MegaManArchieComics the printed medium]]. Thus, it was only a matter of time before both titles, which were penned by Ian Flynn, came together in the form of a {{crossover}} --- the first VideoGame/CapcomVs crossover to be produced in a medium other than video games.

The story begins when, by chance, the blue Chaos Emerald --- thought to be gone missing in the world of Sonic after the events of the ''Sonic Genesis'' storyline --- is thrown through time and space into the world of Mega Man, where it is discovered by Dr. Wily and his forces. In an attempt to analyze its properties, Wily accidentally contacts the original owner of the emerald... Doctor Ivo Robotnik, aka "Eggman." Instantly sensing a connection, the two scientists conspire to use the [[CosmicRetcon Genesis Wave]] to rewrite both their realities and prime them for conquest, which they then intend to conquer together. Eager to collect the seven Chaos Emeralds, they manipulate Sonic and Mega Man into fighting one another. Can the two heroes come together in time to stop the evil doctors and set both their worlds right?

Beginning in April, 2013, ''Worlds Collide'' is a twelve-part CrisisCrossover epic spanning the pages of ''Mega Man'' #24-27,[[note]]Parts 1, 4, 7 and 10[[/note]] ''Sonic the Hedgehog'' #248-251[[note]]Parts 3, 6, 9 and 12[[/note]], and ''Sonic Universe'' #51-54.[[note]]Parts 2, 5, 8 and 11[[/note]] Archie has already announced trade collections for the crossover (well before the first part ''even came out''. Though considering how spread out this story is across issues, it's not surprising), and each issue sports numerous themed variant covers as well.

** StunGuns - Rouge Woman's [[NonIndicativeName Black Wave]] (according to WordOfGod)

** StunGun: Rouge Woman's "Black Wave" will stun a foe for a few seconds.

For nearly twenty years, Archie Comics had published the [[ComicBook/SonicTheHedgehogArchieComics comic adventures]] of one Franchise/SonicTheHedgehog. Likewise, they had similar success bringing VideoGame/MegaMan, the Blue Bomber, to [[ComicBook/MegaManArchieComics the printed medium]]. Thus, it was only a matter of time before both titles, which were penned by Ian Flynn, came together in the form of a {{crossover}} --- the first VideoGame/CapcomVs crossover to be produced in a medium other than video games.

* BadassMustache: Lampshaded in Part 7, where Wily and Eggman mock Dr. Light for growing a beard instead.

* RealityEnsues: [[spoiler: In the big finale Sonic, Mega Man, and most of their allies face off against every single Robot Master except the original line. The fight begins... and soon the heroes are getting overwhelmed by the Robot Masters. MookChivalry is completely averted and the heroes start getting swarmed, especially after Sonic, Mega Man, and Duo go ahead to stop Wily and Eggman. They're nearly overpowered until the original Robot Masters arrive to back them up. In addition Tails ends up severely injured after taking a Ballade Cracker to the face while infiltrating the Wily Egg.]]

For nearly twenty years, Archie Comics had published the [[ComicBook/SonicTheHedgehogArchieComics comic adventures]] of one Franchise/SonicTheHedgehog. Likewise, they had similar success bringing VideoGame/MegaMan, the Blue Bomber, to [[ComicBook/MegaMan the printed medium]]. Thus, it was only a matter of time before both titles, which were penned by Ian Flynn, came together in the form of a {{crossover}} --- the first VideoGame/CapcomVs crossover to be produced in a medium other than video games.

* LoopholeAbuse: Mega Man does one on ''himself'' that is at least within spitting distance of AssPull territory in order to justify fighting Sonic before the two realize they are on the same side. [[JustifiedTrope Justified]] in that Mega Man's programming forbids him to harm life, so without the conclusion that Sonic's super-normal abilities mean he can't be biological (making Sonic fair game), there wouldn't be a throw-down between the two heroes in the first place.

* NotTheFallThatKillsYou: [[spoiler: Shadow catching Dr. Light. Possibly [[JustifiedTrope justified]] in that Chaos Control warps space so it could conceivably negate his momentum.]]

* VillainsActHeroesReact: [[JustifiedTrope Justified]] in that it's hard to be proactive when the villains are plotting from a different plane of existence.

* CompositeCharacter:
** The Chaos Devil is a combination of Chaos and the Yellow Devil.
** The Egg Wily Machine X is a combination of the Death Egg Robot and Wily Machine 9

* BeamSpam[=/=]MacrossMissileMassacre: The Egg Wily Machine X has... a ''lot'' of lasers and explosives. [[spoiler: Nowhere near enough to deal with Super Sonic and Super Mega Man though.]]

* CoolShades[=/=]ScarfOfAsskicking: Proto Man is one of these tropes' poster children.

* CrossCounter [[BetrayalTropes Betrayal]]: [[spoiler: With their VillainousFriendship in tatters, Eggman and Wily simultaneously [[VehicularSabotage sabotage]] each other's section of their WalkingTank in the eleventh hour when the heroes are regrouping.]]

* TheFaceOfTheSun[=/=]TheManInTheMoon: The Sun and Moon in the Skull Egg Zone have Eggman's and Wily's face on them, respectively.

* OhCrap[=/=]HellYesMoment:
** The reactions of Mega Man and Sonic, respectively, upon seeing the [[spoiler: army of eighty one Robot Masters]] at the beginning of part nine (''Sonic the Hedgehog'' #250).
--->'''Mega Man:''' I was expecting ''some'' resistance, but this...\\
'''Sonic:''' Don't get cold feet now buddy, remember: We made our careers out of trashing robots.\\
'''[Splash Page]'''\\
'''Sonic:''' This is what we live for.
** Oh Crap for the villains and Hell Yes for the heroes and fans in the {{Climax}} when Sonic and Mega Man go super.
--->'''Dr. Eggman:''' S-Super forms... They're ''both'' in super forms...

* SpotlightStealingSquad[=/=]StoryBreakerTeamUp:
** Sonic and his friends get the better share of plot events and one-upping the Mega Man side. Most of the plot of the first half is about saving ''Sonic's'' friends, and we barely see Mega Man's friends at all, particularly his sister Roll. Sonic also tends to poke fun at Mega Man's heroic attitude, though this is in-character with Sonic's attitude. [[spoiler: Eggman is more evil than Wily, a majority of the Robot Masters are only seen for a cannon fodder fight, Duo arrives very late in the story, the [=MM1=] Robot Masters don't appear until ''the very last issue'', Eggman has Metal Sonic nearly kill Dr. Light, who's saved by Shadow the Hedgehog, Bass goes down first in the big fight of part 11, and finally, Eggman makes a final shot as Sonic restores his world, causing it to have major changes after the crossover]].
** Mega Man was kind-of this to Sonic. Once he got his Spin Shot, he easily took out most of the Roboticized Masters and it was mostly Mega Man's allies who pulled the big hero moments. Mega Man also took out Metal Sonic and Bass using the weapons he acquired while Sonic acted as a distraction.
** Blaze's arc before and after the crossover revolved around getting the Sol Emeralds. Once she got them all in ''Treasure Team Tango'' she used her SuperMode to [[WaveMotionGun shoot down]] the Egg O'War in ''panels'', something Duo couldn't do after two and half issues of fighting the Chaos Devil.

Though there aren't any full video game crossovers between Sonic or Mega Man, they both appeared in the 3DS and Wii U installment of ''VideoGame/SuperSmashBros''.

For nearly twenty years, Archie Comics had published the [[ComicBook/ArchieComicsSonicTheHedgehog comic adventures]] of one Franchise/SonicTheHedgehog. Likewise, they had similar success bringing VideoGame/MegaMan, the Blue Bomber, to [[ComicBook/MegaMan the printed medium]]. Thus, it was only a matter of time before both titles, which were penned by Ian Flynn, came together in the form of a {{crossover}} --- the first VideoGame/CapcomVs crossover to be produced in a medium other than video games.

* LoadsAndLoadsOfCharacters: Over 90 Robot Masters from the classic ''Mega Man'' series make an appearance in the crossover.

* EleventhHourSuperpower: Of the GoldenSuperMode variety. See the entry for SuperMode below.

For nearly twenty years now, Archie Comics has published the [[ComicBook/ArchieComicsSonicTheHedgehog comic adventures]] of one Franchise/SonicTheHedgehog. Likewise, they have had similar success bringing VideoGame/MegaMan, the Blue Bomber, to [[ComicBook/MegaMan the printed medium]]. Thus, it was only a matter of time before both titles, which are penned by Ian Flynn, came together in the form of a {{crossover}} --- the first VideoGame/CapcomVs crossover to be produced in a medium other than video games.

* AGodAmI: [[spoiler: Wily and Eggman are trying to ''literally'' invoke this.]]

-->'''Dr. Light''': Albert... You thought you had complete control of Ra Moon, Gamma, King, the Stardroids, Roboenza, and Bass? You've toyed with things you cannot handle for years, and Mega Man had to save you from yourself. And from what I've heard, you're no different, Doctor Eggman. Chaos, the ARK, Emerl, the Time Eater? If not for Sonic, you wouldn't have a world to conquer.