History Main / RivalsTeamUp

* Sega and Ninendo were huge rivals in the 16-bit days. After Sega's Saturn and Dreamcast failed thanks to the Playstation and Playstation 2, Sega now makes games for every system, including Nintendo.

** On the Scar thing mentioned earlier, when Scar was making the stone, he and Ed were quasi-officially on the same side, with it being Ed's task to evacuate all the Liore citizens. (He'd also sent a letter to Central telling the troops not to invade, but Archer screwed that.)

** Also in the [[FullmetalAlchemist manga]] they team up again by when he and Mei-ling manages to stumble across them fighting Envy and Gluttony and later they prepare a staged kidnapping of Winry as a decoy.

* Hundreds of thousands of years ago, both primitive humans and wolves had become two of the most successful top level predators on earth, forming complex social groups and hunting in packs, bringing down prey much larger then themselves. At some point some people must have figured out that local wolf packs did not have to be rivals for the same territories, and using similar tactics and social structures made working as a team possible. And it turned out to work very, very, well for them.

* Happened in Eyeshield 21, when players from the various teams banded together to form an all Japanese team to compete in an international tournament held in America.

** Also in the [[FullmetalAlchemist manga/Brotherhood]] they team up again by when he and Mei-ling manages to stumble across them fighting Envy and Gluttony and later they prepare a staged kidnapping of Winry as a decoy.
* At least three characters from KenichiTheMightiestDisciple function as TheRival to Kenichi, and given the rather [[SlidingScaleOfIdealismVersusCynicism idealistic]] nature of the series... This doesn't always overlap with DefeatMeansFriendship ([[ThePowerOfFriendship an otherwise rather frequent occurrence]]).

* Seto Kaiba and Yugi Moutou 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 an YouHaveOutlivedYourUsefulness moment with Kaiba, whom he's been influencing the whole duel, and Yugi and Kaiba team up to kick his ancient ass.

** Or InuYasha even teaming up with [[spoiler: Sesshoumaru]] to fight Naraku.

* Suigintou joins up with Shinku in the manga reboot of RozenMaiden to defeat the threat of Kirakishou. It still turns out inefficient as they are still not powerful enough to take on her.

* In the ''SengokuBasara'' anime, two man army [[RedOniBlueOni Date Masamune and Sanada Yukimura]] team up to take down OdaNobunaga. Much ass is kicked.
* AxisPowersHetalia: [[TheAlliance the Allies]] definitely count as this. France, America, and England are not exactly enemies, but they do argue a lot; America and Russia are obviously on bad terms; China seems to look down on everyone except Russia ... the only thing they all have in common is that they're fighting the Axis.
* Considering the show revolves around their rivalry, {{S-Cry-Ed}} does this with Kazuma and Ryuho teaming up to defeat ConflictKiller Kyoji Mujo, much like the DevilMayCry example below. They even duke it out with each other after they defeated their common enemy!
* Gajeel and Natsu team up to defeat [[spoiler:Laxus]].

* By the end of the series, rivals Ranma and Ryoga of ''[[RanmaOneHalf Ranma 1/2]]'' spend almost as much time fighting on the same side as they do against each other, eventually settling into FriendlyEnemy territory after a number of EnemyMine situations. Mousse also joins them occasionally, especially against true {{Big Bad}}s like Prince Herb and Saffron.

* In ''{{Bleach}}'' [[TheArcher Ishida Uryu]] started out as a genuine Rival, but in spite of his constant insistence that he's still [[HotBlooded Kurosaki Ichigo]]'s enemy, has put himself on the line for the {{Nakama}} multiple times. He even tells a {{Shinigami}} at one point that the FiveManBand are nakama, as if that explains why he's come to Soul Society [[spoiler: and sacrificed his powers]] for people who supposedly mean nothing to him. Even though [[SuperpoweredEvilSide Hichigo]] [[spoiler: ''stabbed him,'']] Ishida merely did his DeadpanSnarker schtick when Ichigo snapped out of it. But [[AloofAlly Uryu]] [[IWantMyBelovedToBeHappy doesn't]] [[NeutralGood care]]. Really.

* Americans and Russians VS Germany in WW2.

* Negi and Kotaro in ''MahouSenseiNegima'' do this to take down the demon Wilhelm. [[FireForgedFriends Kotaro ultimately joined]] the {{Nakama}}.

* Scar in the first ''[[Anime/FullMetalAlchemist Fullmetal Alchemist]]'' anime is at least a partial example. Despite killing dozens of State Alchemists, he saves Ed and Al's lives more than once. But he also plans to create a Philosopher's Stone by sacrificing hundreds of State troopers.

* VegetaAndSonGoku, the original ones from ''DragonBallZ''. When these two team up, there's very little that can stand in their way for long. And the result of their [[FusionDance fusion]]... let's just say that he is able to (literally) [[DidYouJustPunchOutCthulhu punch out]] {{Cosmic Horror}}s, upon which nobody couldn't as much as land a hit before.

* In more recent StarFox games, Wolf and Fox team up, though of course this is usually after a short dogfight between the two teams.

* ''{{Exosquad}}'' is a complex case: we have the [[ArtificialHuman Neosapien]] AcePilot Thrax who is TheRival of sorts to TheSquad (particularly, [[YoungGun Kaz Takagi]]), and in the end of the second season, he realizes the pointlessness of the war and disbands his garrison, effectively pulling a HeelFaceTurn without directly facing the heroes.

* ''TeenTitans'' has done it twice with Robin. Once with Slade, and once with [[NamesToRunAwayFromReallyFast Red X]]. Unsurprisingly, [[CrowningMomentOfAwesome Ass-kickery ensued.]]

[[AC:RealLife]]
* Hundreds of thousands of years ago, both primitive humans and wolves had become two of the most successful top level predators on earth, forming complex social groups and hunting in packs, bringing down prey much larger then themselves. At some point some people must have figured out that local wolf packs did not have to be rivals for the same territories, and using similar tactics and social structures made working as a team possible. And it turned out to work very, very, well for them.
** During the 19th and early 20th century, the small australian town of Eden at Twofold Bay had been home to several small groups of whalers who hunted whales in small rowed boats from the coast. The whalers often got into conflict with a local group of orcas that hunted in the area and often tried to snatch away the whalers catches. Apparently the Davidson and Greig families were much nicer to the orcas and stuck to using rowed boats and hand thrown harpoons, so the orcas started to drive their prey near the Davidsons home and keep it from escaping until the humans got their boats out to kill the whales. The orcas where then allowed to eat the easily reachable parts of the dead whales before the humans would pull them to shore and cut up the much larger rest of the bodies. Being among the smartest animals in the world, the orcas eventually began to send one of them ahead to alert the humans that the main group was on their way driving a group of whales into the bay. They were also known to often play with the boats by grabbing ropes hanging in the water, and reportedly even pulled the boats on occasion, as they swam much faster and easily had the size and strength required for it.

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* {{Naruto}}: Zabuza Momochi, after Haku dies. Unfortunately, RedemptionEqualsDeath.