History Main / RivalsTeamUp

* Similar to Kira and Athrun are Lelouch and Suzaku in ''Anime/CodeGeass'' who team up on a few occasions throughout both seasons, despite becoming bitter enemies. In fact, Lelouch says many times that there isn't a single thing that they two cannot accomplish if they work together. [[spoiler:And they do, indeed, change the entire freaking world together.]] Also note that while both of them could be called "TheHero", neither of them can really be called "[[AntiHero A Hero]]".

** ''Anime/DragonBallZ'' starts with Goku and Piccolo Jr putting aside previous grievances (YouKilledMyFather) to take down Raditz. Goku ends up letting Piccolo kill ''both'' of them in a TakingYouWithMe, although Piccolo knows Goku's friends can revive him. Upon learning of Vegeta and Nappa, Piccolo ends up training Goku's kid, TakingTheBullet for him, and growing into a solidly reliable hero.
** [[RedOniBlueOni Vegeta and Goku]]. When these two team up, there's very little that can stand in their way for long. And the result of their FusionDance... let's just say that he is able to (literally) [[DidYouJustPunchOutCthulhu punch out]] {{Cosmic Horror}}s, upon which nobody could land a hit before.

* [[Characters/YuGiOhSetoKaiba Seto Kaiba]] and [[Characters/YuGiOhYamiYugi Yugi Moutou]] from ''Anime/YuGiOh'' end up having to work together on several occasions. Of course, they win. (The duel on the roof with the Rare Hunters during Battle City; the duel with BigBad Dartz in the DOMA arc; at the end of the movie, Anubis has a YouHaveOutlivedYourUsefulness moment with Kaiba, whom he's been influencing the whole duel, and Yugi and Kaiba team up to kick his ancient ass.

* Seto Kaiba and Yugi Moutou from ''Anime/YuGiOh'' end up having to work together on several occasions. Of course, they win. (The duel on the roof with the Rare Hunters during Battle City; the duel with BigBad Dartz in the DOMA arc; at the end of the movie, Anubis has a YouHaveOutlivedYourUsefulness moment with Kaiba, whom he's been influencing the whole duel, and Yugi and Kaiba team up to kick his ancient ass.

* Creator/{{Sega}} and Creator/{{Nintendo}} were huge rivals in the 16-bit days, the most remember of the great UsefulNotes/ConsoleWars in recent gaming history. However, Sega hit a sharp decline with two failed UsefulNotes/SegaGenesis add-ons (the Sega CD and the 32X), only made worse by the failure of their successor system the UsefulNotes/SegaSaturn. Then what seemed like a grand comeback with the UsefulNotes/SegaDreamcast (fondly remembered to this day even with some non-fans) unfortunately wasn't enough to pull Sega out of the hole it was in, as well as the massive looming shadow of the UsefulNotes/PlayStation2 was the death-knell for the former giant who then was forced to go exclusively third party. Much was made of Sega having to bury its hatchets, none more famously than the one it had with Nintendo, who luckily was perfectly fine with the idea of joining forces. Even wilder is the number of games featuring both [[Franchise/SuperMarioBros Mario]] and Franchise/{{Sonic|TheHedgehog}}, the mascots of the two formerly rival companies, namely the ''VideoGame/MarioAndSonicAtTheOlympicGames'' series. The best of this probably culminated when Sonic made his debut on ''VideoGame/SuperSmashBrosBrawl''. Now fans of both the Blue Blur and the Plumber-formerly-known-as-Jumpman could settle the gauntlet ''or'' tag team and kick ass.

* Gollum in ''Literature/TheLordOfTheRings'' guides Frodo.

* Creator/{{Sega}} and Creator/{{Nintendo}} were huge rivals in the 16-bit days, the most remember of the great UsefulNotes/ConsoleWars in recent gaming history. However, Sega hit a sharp decline with two failed UsefulNotes/SegaGenesis add-ons (the Sega CD and the 32X), only made worse by the failure of their successor system the UsefulNotes/SegaSaturn. Then what seemed like a grand comeback with the UsefulNotes/SegaDreamcast (fondly remembered to this day even with some non-fans) unfortunately wasn't enough to pull Sega out of the hole it was in, as well as the massive looming shadow of the UsefulNotes/PlayStation2 was the death-knell for the former giant who then was forced to go exclusively third party. Much was made of Sega having to bury its hatchets, none more famously than the one it had with Nintendo, who luckily was perfectly fine with the idea of joining forces.
** Even wilder is the number of games featuring both [[Franchise/SuperMarioBros Mario]] and Franchise/{{Sonic|TheHedgehog}}, the mascots of the two formerly rival companies, namely the ''VideoGame/MarioAndSonicAtTheOlympicGames'' series.
** This seemed to be a selling point for ''VideoGame/FZeroGX'' for the Gamecube (and its arcade counterpart AX.) An installment in a Nintendo series developed (at least partially) by Sega.
** The best of this probably culminated when Sonic made his debut on ''VideoGame/SuperSmashBrosBrawl''. Now fans of both the Blue Blur and the Plumber-formerly-known-as-Jumpman could settle the gauntlet ''or'' tag team and kick ass.
** And now we have Nintendo and Sega joining up in a worldwide partnership, bringing with it 3 Nintendo-exclusive ''Sonic'' games.

** This seemed to be a selling point for ''[[VideoGame/FZero F-Zero GX]]'' for the Gamecube (and its arcade counterpart AX.) An installment in a Nintendo series developed (at least partially) by Sega.

** In the Impel Down Arc, Luffy is in prison with several of his former enemies, particularly Crocodile, who have to team up with him in order to escape.

** The partnership also meant taking on the Federal Government on Anti-Trust grounds because the City of New York was helping form ''the Continental League''. The National League and rival American League both agreed to expansion into new markets to keep its Anti-trust exemption, a return to New York in the National League,[[note]]This eventually coalesced into the establishment of the New York Mets in 1962.[[/note]] and to limit other franchise moves that would leave a city without any team.[[note]]In the years since, only two cities have had their teams leave with no eventual replacement: UsefulNotes/{{Montreal}} after the Expos left for UsefulNotes/WashingtonDC and became the Nationals in 2004, and UsefulNotes/{{Oakland}} when the Athletics move to UsefulNotes/LasVegas no earlier than 2025.[[/note]]

** The partnership also meant taking on the Federal Government on Anti-Trust grounds because the City of New York was helping form ''the Continental League''. The National League and rival American League both agreed to expansion into new markets to keep its Anti-trust exemption, a return to New York in the National League,[[note]]This eventually coalesced into the establishment of the New York Mets in 1962.[[/note]] and to limit other franchise moves that would leave a city without any team.[[note]]In the years since, only two cities have had their teams leave with no eventual replacement: UsefulNotes/{{Montreal}} after the Expos left for UsefulNotes/WashingtonDC and became the Nationals in 2004, and UsefulNotes/{{Oakland}} when the Athletics move to UsefulNotes/{{LasVegas}} no earlier than 2025.[[/note]]

* The Brooklyn Dodgers and crosstown rival New York Giants won 8 of the 10 National League Pennants from 1947-1956 including the famous [[https://en.wikipedia.org/wiki/Shot_Heard_%27Round_the_World_(baseball) Shot Heard Round the World]] game where the Giants, ''50 years later'', admitted to cheating to win. The Dodgers, unable to get to acquire land for a new stadium in Brooklyn by the City of New York, accepted a deal to move to Los Angeles in 1958. The National League refused citing high travel costs for a 3 game series (commercial air travel was relatively new and most teams took the train between cities). The Dodgers worked a deal with Giants owner Horace Stoneham to move his team to San Francisco. The deal meant the other six teams would make a "West Coast Swing" by playing a series against one and then the other.
** The partnership also meant taking on the Federal Government on Anti-Trust grounds because the City of New York was helping form ''the Continental League''. The National League and rival American League both agreed to expansion into new markets to keep its Anti-trust exemption, a return to New York in the National League, and to limit other franchise moves that would leave a city without any team.

The opposite of RivalTurnedEvil. Bear in mind, however, that TheRival may not always be evil. He or she may simply be an antagonist trying to one-up TheHero in doing good things, or the rivalry may be based on other unrelated reasons, such as personal ones. A SubTrope of EnemyMine, which is any case in which a protagonist and antagonist team up against a common enemy (not just rivals).

* ''WesternAnimation/TeenTitans'' has done it twice with Robin. Once with Slade, and twice with [[NamesToRunAwayFromReallyFast Red X]]. Unsurprisingly, ass-kickery ensued.

* Many of the later shorts of ''WesternAnimation/TomAndJerry'' involve the cat and mouse former enemies teaming up against Spike the dog.

[[caption-width-right:325:[[Characters/YuGiOhSetoKaiba Kaiba's]] always willing to help [[Characters/YuGiOhYamiYugi Yugi]] save the world... but only if he gets another rematch.]]

* The Brooklyn Dodgers and crosstown rival New York Giants won 8 of the 10 National League Pennants from 1947-1956 including the famous [[https://en.wikipedia.org/wiki/Shot_Heard_%27Round_the_World_(baseball) Shot Heard Round the World]] game were the Giants,''50 years later'', admitted to cheating to win. The Dodgers, unable to get to acquire land for a new stadium in Brooklyn by the City of New York, accepted a deal to move to Los Angeles in 1958. The National League refused citing high travel costs for a 3 game series (commercial air travel was relatively new and most teams took the train between cities). The Dodgers worked a deal with Giants owner Horace Stoneham to move his team to San Francisco. The deal meant the other six teams would make a "West Coast Swing" by playing a series against one and then the other.

[[quoteright:350:[[Manga/YuGiOh https://static.tvtropes.org/pmwiki/pub/images/download_7945.jpeg]]]]