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[[quoteright:345:[[VideoGame/CaveStory http://static.tvtropes.org/pmwiki/pub/images/DBoss_CStory_Sisters_full_health_2626.png]]]]

->''"Folks they always complain.''
->'''Bout how their bosses are pains,''
->''but I can't sympathize''
->''because before my eyes''
->''are TWO BOSSES! It drives me insane!"''
-->-- ''VideoGame/{{Cubivore}}''

All too often, an adventurer manages to make it to the last floor of a dungeon to retrieve the [[MacGuffin Holy Talisman of Power]]... but finds that he has to fight not one, but '''two''' bosses at the same time. He has just come face to face with a Dual Boss.

A Dual Boss is a pair (or group) of bosses that you must fight at the same time (not [[SequentialBoss one at a time]]). These are two or more ''fully powered'' bosses, as opposed to a FlunkyBoss who decided to bring his {{Mooks}} along for the ride.

Dual Bosses may be [[PaletteSwap identical]] or [[RedOniBlueOni complementary]]: Popular combinations include a MightyGlacier paired with a FragileSpeedster, a Warrior with a SquishyWizard, or similar combination of opposites. Character-wise, they are often twins, siblings, lovers, or just partners or identical constructs/vehicles.

Dual Bosses usually start out fairly, alternating attacks every few seconds or hits (with the exception of the occasional CombinationAttack) in patterns that give the player opportunities to evade and strike back or [[PuzzleBoss making the bosses hit each other]]. This teamwork disintegrates as their health declines however, and as they [[TurnsRed Turn Red]] they begin attacking the player independently -- although it's not uncommon for each boss to fight individually straight from the outset.

Defeating one boss often causes the other to [[TurnsRed Turn Red]] to maintain pressure on the player. Otherwise, the battle becomes significantly easier once the player has taken one of them out. Although if you're really lucky, [[{{Synchronization}} they may even]] [[SharedLifeMeter share one health bar]], halving the effort required.

A particularly difficult Dual Boss is almost certain to become [[ThatOneBoss Those Two Bosses]].

Not to be confused with the DuelBoss. Compare CognizantLimbs, WolfpackBoss.

----
!!Examples:

* ''VideoGame/{{Bayonetta}}'' - Grace & Glory
* In ''VideoGame/ShinMegamiTenseiIIINocturne'', Clotho, Lachesis and Atropos were hard bosses that the player has to fight in succession. ...And then all three at the same time, powered up and with more health.
** In ''VideoGame/ShinMegamiTenseiIV'', there's a quest in Ikebukuro [[spoiler:(specifically, the Infernal Tokyo version)]] to fight all four HorsemenOfTheApocalypse at once. However, when fought in this particular quest, they're not as fiendishly powerful as when they're fought individually as part of the 1/256 chance battles.
* Variation: ''VideoGame/MortalKombatDeception'' has the Noob-Smoke tag team, basically two different characters who share one HP bar.
* The two Barons of Hell (AKA the 'Bruiser Brothers') from the original ''VideoGame/{{Doom}}'' at the end of the first episode.
* The vores in ''VideoGame/{{Quake}}'' make their first appearance this way.
* ''VideoGame/SuperSmashBros.'' series:
** Crazy Hand, from ''VideoGame/SuperSmashBros.'', is fought only beside Master Hand and has a surprisingly different move set. The two of them also appear in ''VideoGame/KirbyAndTheAmazingMirror'' as the bosses of Candy Constellation.
** Crazy Hand does get fought separately in ''Brawl'''s BossRush, however.
** In addition to that, in ''Brawl,'' if it is 2 Player mode, Dark Link and Dark Samus are both battled at the same time, and you and the other player have to defeat them both.
** Duon is a variation on this, as it's two giant robots with completely different movesets...attached to each other at the back.
* The third level of ''Gungage'' features two giant dog-like creatures, one red and one blue, attacking you at the same time. Their attacks include fire breathing, charge attacks which temporarily stunt you, and summoning fire below you. On top of that, you have to fight on a raised platform, so if you do not watch out you can fall off the edge.
* Dual Dragon from ''VideoGame/WarioWorld''.
* Claw Brother and Blade Brother, a pair of {{Chinese Vampire}}s in ''VampireTheMasqueradeBloodlines''.
* Mr. Shine and Mr. Bright from the ''{{Kirby}}'' series, as well as several others such as Lololo and Lalala.
* BonusBoss Grindcore Minks from ''VideoGame/TheWorldEndsWithYou''. Also not-bonus-bosses [[spoiler:Kariya and Uzuki]] and [[spoiler:Shiki and Megumi]].
* ''VideoGame/SuperMarioRPG'' has several.
** Hammer Brothers.
** Knife Guy and Grate Guy appear together later in the game.
** Then there's the fight with Cloaker and Domino, which includes a different SequentialBoss depending on which one you kill first.
** Also the Axem Rangers, 5 bosses at once. Being a parody of SuperSentai and PowerRangers you have to fight their [[HumongousMecha giant mecha]] right after.
* ''VideoGame/PaperMario'' has the Goomba Bros, The Goomba King w/ The Goomba Bros, The Koopa Bros. (a quadruple boss who are also an obvious Franchise/TeenageMutantNinjaTurtles parody), and several others. ''[[VideoGame/PaperMarioTheThousandYearDoor Paper Mario 2]]'' had a trio of the Shadow Sirens, replacing one of their members for a rematch. The penultimate boss was Bowser and Kammy.
* ''Franchise/SuperMarioBros'' series:
** ''VideoGame/SuperMarioSunshine'' featured a fight with Bowser and Bowser Jr. simultaneously. Not that Mario actually had to [[PuzzleBoss directly fight them...]]
** The two also team up for the final battle in ''VideoGame/NewSuperMarioBros''.
** Bowser teamed up with ''himself from the past'' in ''[[VideoGame/MarioAndLuigiPartnersInTime Mario & Luigi: Partners in Time]]''.
** Eyerok (the two "hand golems") from ''VideoGame/SuperMario64's'' ShiftingSandLand.
* Mander and Dogman from ''VideoGame/MediEvil2'', both of which are faced together [[RecurringBoss on two occasions.]]
* Agni and Rudra from ''VideoGame/DevilMayCry 3''.
* During Garrus' loyalty mission in ''VideoGame/MassEffect2'', Harkin throws two [[HumongousMecha YMIR mechs]] at you. By that point in the game, they aren't quite as scary as the one at the end of Freedom's Progress.
* ''Zelda'' series:
** The last boss (Twinmold, the giant worms) before Majora in ''VideoGame/TheLegendOfZeldaMajorasMask''.
** Igos du Ikana's bodyguards, two stalfos who can only be killed by reflecting light in them.
** And the trio of Lanmola sandworms which they were based on from ''VideoGame/TheLegendOfZeldaALinkToThePast''.
** Koume and Kotake, the witches in ''VideoGame/TheLegendOfZeldaOcarinaOfTime'', at least until they merge together and form Twinrova.
*** With the same boss appearing in a linked game of [[VideoGame/TheLegendOfZeldaOracleGames Oracle of Ages/Seasons]].
** Some of the minibosses also like to show up in pairs, such as Stalfos and Darknuts. Sometimes with the added catch that both need to be defeated in quick succession or they come back to life.
** And the Gohmas in the fifth stage of ''VideoGame/TheLegendOfZeldaLinksAwakening''. Weirdly, these were placed in a location where beating them wasn't essential.
** Also Gleeok from ''VideoGame/TheLegendOfZeldaPhantomHourglass'' - while its two heads are attached to one body, that body is never seen, although the same is not true of Gleeok in other games.
** ''Link's Awakening'' also has dual Dodongo Snakes as mini-bosses in three dungeons.
* There is a Japanese ''VideoGame/MegaMan2'' fangame which is essentially one of these - you fight ''all eight Robot Masters at once!''
** ''VideoGame/MegamanADayInTheLimelight'' has you playing as the original six robot masters, each one fighting one of the other eight. So what happens to Bubble Man and Flash Man? They both team up against Elec Man in one of the Wily Castle stages.
** Speaking of which, Gemini Man of ''VideoGame/MegaMan3'' is a Dual Boss all by himself. His ''Star Force'' counterpart, Gemini Spark, is the same in this regard.
** The 3 Ring-Rings in ''VideoGame/Rockman4MinusInfinity'', who are also a {{homage}} to [[VideoGame/{{Kirby}} Lololo and Lalala]] and a miniboss fight in Ring Man's stage.
* Also in ''VideoGame/MegaManStarForce'', Acid Ace R and Dread Joker R also qualify as this and ThatOneBoss. The sibling rivalry which defined the originals is absent with the remakes, as Omega-Xis quickly points out before the fight. And yes, you have to fight both of them in a row.
** There is also the Suzak and Fenix miniboss in ''VideoGame/MegaMan10'', the Twin Devil in ''VideoGame/MegaMan9'' and 'Rounder 2 in ''VideoGame/MegaMan6''.
* ''VideoGame/MegaManX'' series:
** They have a pair of bosses that act similarly to Gemini Man - Split Mushroom in ''X4'' and Axle the Red (a.k.a. Spike Rosered) in ''X5''.
** Likewise the FinalBoss in Vile's scenario of the {{remake}} ''Maverick Hunter X'', where Vile will fight against [[spoiler:both X and Zero.]]
* ''VideoGame/MegaManZero'' series:
** In the BossRush of ''Zero 2'', "one" Boss fight stands out: Zero fighting against Herculious Anchortus (defeated in the previous game) and his brother Kuwagust Anchus.
** And again later, with [[spoiler:the baby elves]] in ''Zero 3''.
* ''VideoGame/{{Shinobido}}'' has at least two unskippable Dual Boss battles, but they're actually very easy, since you have to bring down only one of them to win.
* ''VideoGame/MegaManZX Advent'' had Urgoyle and Argoyle the Shisharoids. Also, Prometheus and Pandora.
* In the original ''RomancingSaGa'' for the SNES you had both a SequentialBoss and a DualBoss battles of the Minions of Saruin in the final dungeon, in the remake you would only fight all three at once if you defeated them in the final dungeon and collected the treasures that they guarded.
* ''Franchise/FinalFantasy'':
** ''VideoGame/FinalFantasyVII'':
*** [[GoldfishPoopGang The Turks]] on multiple occasions.
*** The [[RedOniBlueOni two-headed]] [[ThatOneBoss dragon boss]] in the icicle mountain region.
** ''VideoGame/FinalFantasyVI'' gives us Ultros and his friend Mr. Typhon.
** They proved so popular to come back as a [[DownloadableContent DLC battle]] in ''VideoGame/FinalFantasyXIII2''.
* ''NinjaGaiden''
** The original arcade game has a recurring pair of Road Warrior-lookalikes who first appear at the end of Round 2, as well as twin sumo wrestlers at the end of Round 4. The third stage also ends with a battle against a trio of claw-wielding acrobats.
** [[{{Cerberus}} Kelbeross]], Jaquio's pet dogs, in the first two NES games.
** Great Koganei, the third boss in ''Ninja Gaiden III'' for the NES, has the ability to create a duplicate of himself.
** The Mission Mode in ''Ninja Gaiden Black'' and ''Sigma'' featured twin bosses that made an already hard game even harder.
* ''VideoGame/WorldOfWarcraft'':
** Romulo and Julianne, a parody of...[[RomeoAndJuliet guess]]. First they are fought in sequential order, then both at the same time. They need to die together to avoid one resurrecting the other.
** Scarlet Commander Mograine and High Inquisitor Whitemane in Scarlet Monastery Cathedral. Like above, it starts with one, then another comes, resurrect the other, then you have to fight both at the same time.
** Jarien and Sothos, BonusBoss in Scarlet Stratholme.
** Skarvald and Dalronn in Utgarde keep.
** Swamp Lord Musel'ek and Claw in Underbog
** The Twin Emperor Vek'lor and Vek'nilash
** The Eredar Twins, Lady Sacrolash and Grand Warlock Alythess. Both must be fought at once, and killing one twin causes the two to fuse together, with the surviving sister gaining some of the former's powers.
** The Crusader's Coliseum raid has 3 separate multi-boss fights, all somewhat different in execution. First you fight [[MemeticMutation not one but TWO Jormungar]]. They have separate healthpools but if one dies before the other, the surviving one TurnsRed and starts doing 50% more damage.
*** The Crusader's Coliseum is home to two more DualBoss fights. The Twin Valkyr fight is an {{Ikaruga}} style encounter with a black Valkyr and a white Valkyr. There are black and white portals around the ring, and players have to click the portals to change color; you absorb damage of the same color as you but take extra damage from the opposite color. You need to switch colors when each boss does her big attack.
*** The other is Faction Champions fight. You fight 6 (in 10 man or 10 in 25 man) bosses, each a superpowered version of the playable classes. It's the only PvP style boss fight in the game.
** The ogres King Gordok and Cho'Rush the Observer from Dire Maul. Gordok is a hard-hitting melee warrior, while Cho'Rush is a spellcaster (may be a shaman, priest or mage at random).
** Valiona and Theralion in Bastion of Twilight. While you never have to melee them both at the same time, one is in the air using his or her ranged powers while you're fighting the other on the ground.
** Elemental Ascendant Council also in Bastion of Twilight. Four bosses total. You start off against two of them, then they switch out with the other two when one of the first pair reaches 25% health. Then when one of the second pair reaches 25% health, they combine into the Elemental Monstrosity.
** Omnitron Defense Council in Blackwing Descent. The fight consists of four separate golems with a shared health pool. Only two are active at the same time however.
** Nefarian makes his return as the last boss in Blackwing Descent and he is joined by the reborn Onyxia for the first phase of the fight.
** Conclave of the Winds consists of three separate bosses that must be defeated within a minute of each other.
** The Four Horsemen encounter from Naxxramas has you fight four death knights at once; letting them get too close to each other means a wipe for the raid, so two are tanked in separate corners with the tanks switching often, and the other two are tanked by ranged casters.
** The Illidari Council is another council fight, with four different bosses that must be fought at the same time. They have a shared health pool.
** The first three phases of the Kael'thas fight are examples of this. First, you fight his four advisers, one at a time. Then you fight all the legendary weapons at once. After that, you fight the four advisers again, but this time all at the same time. After they're dead, Kael'thas himself enters the fight and then it's a regular single boss fight.
** The High King Maulgar encounter in Gruul's lair puts you against the titular boss and a few other ogre bosses that must be fought simultaneously (three are tanked by real tanks, one is tanked by a mage spellstealing his buff, and the fifth is tanked by other ranged dps, preferably two warlocks or two hunters).
** Mannoroth and Varo'then are fought simultaneously in the Well of Eternity instance. Players initially focus on Varo'then while Mannoroth fights Illidan and assists Varo'then by summoning demons and using Fel Firestorm to burn the players. Players then focus on Mannoroth once Varo'then dies.
** Warmaster Blackhorn combines this with FlunkyBoss. Blackhorn is the leader of a pack of dragon riders, so he and his six Vrykul underlings are each riding a dragon, for seven rider/mount {{Dual Boss}}es. The fight starts with fighting his minions, who attack the raid two at a time, so melee players have a Vrykul DualBoss, while the ranged have a drake DualBoss; and finishes with Blackhorn and his dragon mount, Goriona as the true DualBoss.
** The Will of the Emperor encounter in Mogu'shan Vaults is a MookMaker which is defeated by beating the two biggest mooks, Jan-Xi and Qin-Xi, while the machine keeps [[FlunkyBoss pumping out lesser mooks]].
** The Protectors of the Endless in Terrace of Endless Spring are an example of [[UpToEleven Triple Bosses]]. As expected, they {{Turn Red}} when you kill one of them. There are even bonuses for killing the "hardest" one last.
** The Twin Consorts in Throne of Thunder.
* The "axe and sword twins" in ''VideoGame/PrinceOfPersiaTheTwoThrones''. Also ThatOneBoss, though most of the bosses in that game are almost as frustrating.
* ''VideoGame/FinalFantasyVIII'':
** Fujin and Raijin are fought twice during the game - once in Disc 2 and once in Disc 3.
** Also Wedge and Biggs, who are seen once in each of the first three discs. [[spoiler: You only fight them in the first two, however]].
** And Minotaur and Sacred, the Brothers GF.
** Not to mention the Iguions, two gargoyles brought to life by Edea's magic near the end of Disc 1.
* ''LegendOfMana'' features a dual boss fight with Sierra and Vadise during the Dragon Storyline.
* ''VideoGame/{{Bloodrayne}}'':
** The final battle in is a 3-way fight between Rayne, the Devil, and the Nazi Commander.
** She fights twin Nazi officers earlier on.
* The Shtrom & Druk duo in the 6th level of the classic ''VideoGame/CaptainCommando''. Also notable that they're both a PaletteSwap of the 2nd level boss, Shtrom Jr., who ''was already ThatOneBoss on his own!''
* The ''Franchise/{{Castlevania}}'' series makes use of this relatively often:
** ThatOneBoss of [[VideoGame/CastlevaniaI the first game]] is Frankenstein's Monster and Igor (though damage can only be and need only be dealt to Franky). The preceding BossBattle is against a pair of mummies.
** The popular duo of Slogra, skeleton-with-a-beak-wielding-a-spear, and Gaibon, dragon, make a DualBoss in ''VideoGame/CastlevaniaSymphonyOfTheNight''.
** The first form of ''VideoGame/CastlevaniaPortraitOfRuin's'' final boss is Dracula ''and'' Death instead of just Dracula as is fairly traditional for the series. They fuse into one for the second form.
** Stella and Loretta too. Trying to heal them can be MIGHTY DIFFICULT to say the least...
** There is also a triple hidden boss of heroes past. To get to them, you must fight two Franks at once. This triple boss first appeared in ''Symphony''.
** The Werewolf and Minotaur fight in tandem in ''Symphony of the Night'', complete with team maneuvers. They even retain those abilities when they become a DegradedBoss.
** The Dragon Zombies in ''VideoGame/CastlevaniaCircleOfTheMoon''.
* The Poes Edgar and Virginia in ''[[VideoGame/{{Boktai}} Lunar Knights]]''.
* ''BatenKaitos'', at the end of one rather frustrating dungeon. The bosses in question are large cat-esque creatures that happen to be fire- and water-element creatures.
** Both the original and ''Baten Kaitos Origins'' also feature ''Trio'' Bosses, in the form of three enemy commanders: Giacomo, Ayme, and Folon in the original, and Valara, Nasca, and Hughes in ''Origins''.
* At one point in ''VideoGame/SkiesOfArcadia'', the party is [[LetsSplitUpGang split into two groups]]. The two separate parties navigate a dungeon together, but don't meet up until just before the boss fight, which is appropriately against two bosses. There are a handful of other examples, but those two are the most prominent.
* ''{{Persona 3}}''
** The game does this three times with the Full Moon Shadows Empress and Emperor, Chariot and Justice, and Fortune and Strength. First time the two bosses have similar skills and strategies, just leaning towards magic or physical. The next time the two can fuse together and split apart again. The next time one protects the other until you beat it, the protected one creating a roulette of effects each turn.
** Then there's also Jin and Takaya.
** Many of the Tartarus guardians come in groups of three identical Shadows.
** In ''The Answer'', there's [[spoiler:Akihiko and Ken, Junpei and Koromaru, and Yukari and Mitsuru.]]
* The final battle in ''Kingpin'' is a shootout against both the Kingpin and his invincible female bodyguard.
* ''VideoGame/GoldenSun'' series:
** At the end of the first game, you have to take on Saturos and Menardi.
*** You also face them together briefly in the prologue, though in this case it's a HopelessBossFight.
** In the sequel, you take on Karst and Agatio on top of Jupiter Lighthouse, then fight them again in Mars Lighthouse.
** ''[[VideoGame/GoldenSunDarkDawn Dark Dawn]]'' follows in its predecessors' footsteps with Blados and Chalis, as well as the Kaocho generals Ku-Tsung and Ku-Embra. [[spoiler:Blados and Chalis fight you twice over as a pair; the second time, they're escorted by the Chaos Hound, aka Volechek]].
* In ''{{Soldier of Fortune}} 2: Double Helix'', you fight a Dual Boss battle against The Torturer (who's armed with an M60 heavy machinegun) and Deviant1 (who's up on a balcony with a sniper rifle) inside a prison yard. Both characters do increased damage, so much so that Deviant1 can kill you with a single shot. They also can absorb more bullets than a normal human, although the difference isn't too unrealistic. The game is otherwise devoid of boss fights (except for 2 battles against an enemy helicopter).
* The final battle in ''The Chronicles of Riddick: VideoGame/{{Escape from Butcher Bay}}'' is one of these, as you fight two man-sized mechs that serve as the BigBad's personal bodyguards.
* ''VideoGame/TalesOfVesperia'':
** the recurring foes Adecor and Boccos, who you fight several times, and who also act as tutorials to some of the gameplay aspects. They can actually be tough to beat, since Yuri fights them alone more often than not.
** There's also [[spoiler:Belius]] who creates a double during your fight. This is stoppable however, as you can relight the candlesticks scattered around the fighting area to end the illusion.
** There's also Tyson and Nan and optional bosses Gauche and Droite... Wow, [[VideoGame/TalesOfVesperia Vesperia]] ''really'' likes this trope.
* ''VideoGame/TalesOfSymphonia'' used this one a few times
** Minor villains Yuan and Botta
** Summon Spirits Luna and Aska, the Sylph
** Sheena and her Guardian Spirit
** The Dragons in the Dragon's Nest, and the other dragons at the Remote Island Human Ranch (also a SequentialBoss with Rodyle)
** Summon Spirit Celsius with her partner Fenrir
** Alice and Decus in ''Dawn of the New World'' [[spoiler:Oh, and Lloyd and Marta]]... you get the picture, right?
* ''VideoGame/TalesOfHearts'' has you fight twin Mechanoids [[RedOniBlueOni Chlorseraph and Clinoseraph]], a DualWielding, HotBlooded OmnicidalManiac and a [[MightyGlacier double-shield-wielding, defensive]], [[TheStoic ice-cold soldier]], in their [[{{Synchronization}} Link-Drive Mode]]. Not to mention when your party takes on the entire Chalcedny Squad.
* ''VideoGame/TalesOfXillia'' has the [[spoiler: final]] boss fight against [[spoiler: Gaius and Musee]].
** There's also the earlier fights against Wingull and Presa, Jiland and Celsius, and Presa and Agria, to name a few.
* ''VideoGame/TalesOfGraces'' has the Dispaters, which have the potential to become [[ThatOneBoss Those Two Bosses]].
* ''VideoGame/SilentScope'' series:
** ''Silent Scope 2'' has the ninjas, Sho and Kane, two bosses that each take 10 hits from a sniper rifle, teleport around, move really fast all around the screen, and create illusions of themselves to throw off your aim.
** The first game had the somewhat less frustrating Tom & Jerry.
* The second to last fight in the arcade game ''Hippodrome'' involves a pair of assassins. Appropriately enough, the level is called "The Twin Paradises".
* ''Franchise/TeenageMutantNinjaTurtles'' video game series:
** Bebop and Rocksteady in the ''[[VideoGame/TeenageMutantNinjaTurtlesTheArcadeGame Teenage Mutant Ninja Turtles]]'' arcade game and in the SNES version of ''VideoGame/TeenageMutantNinjaTurtlesTurtlesInTime''. In the former, they are both fought solo beforehand.
** Tokka and Rahzar in both the arcade and SNES versions of ''Turtles In Time''.
* Zorn and Thorn from ''VideoGame/FinalFantasyIX''. Once they're defeated the second time they fuse into a boss that is slightly more difficult to kill. And then you're done with the [[TheScrappy infuriating little creeps]] for the rest of the game.
** Much earlier in the game there's the first Black Waltz and Sealion, which Zidane has to fight entirely on his own. If you're not properly leveled up this can be one of the more difficult fights.
* Biran and Yenke from ''VideoGame/FinalFantasyX''. Made more difficult than usual because you can only fight them with Kimahri. Still not very hard, especially compared to the [[ThatOneBoss boss right after them.]]
** Ormi and Logos in ''VideoGame/FinalFantasyX2'' each get one solo boss fight but are otherwise fought together pratically every time they appear during the first two chapters of the game. A couple of those times, their employer, Leblanc, joins them to make it a 3-on-3 battle against the three playable characters.
* Blue Fang and Red Horn in ''VideoGame/DragonQuestVIII''. Although they're optional due to being part of a sidequest, they have one dangerous move, where they team up and pummel one of your characters simultaneously. This is especially nasty if the one who initiates it has tension built up. However, it can only be used if they're both alive, so killing one will remove this potential threat, giving you some leeway to take out the other.
* ''[[VideoGame/PokemonRubyAndSapphire Pokémon Ruby/Sapphire/Emerald]]'' have Liza and Tate, Gym Leaders that you fight in a Double Battle with two Pokémon on each side. Depending on how well you've prepared, this is either a fun battle, or that [[ThatOneBoss those two bosses.]]
** In ''Emerald'', you team up with Steven to fight Team Magma Leader Maxie and Admin Tabitha in Mossdeep's Space Center.
** ''VideoGame/PokemonDiamondAndPearl'' have Mars and Jupiter in Spear Pillar where you fight alongside your rival. In ''Platinum'', there is also Flint and Volkner in the post-game, where they are fought by the player and the player's rival at the entrance to Sinnoh's Battle Frontier.
** ''[[VideoGame/PokemonGoldAndSilver HeartGold and SoulSilver]]'' have a post-game DualBoss battle where you and your rival battle Clair and Lance.
** ''VideoGame/PokemonBlackAndWhite'' has subway bosses Emmet and Ingo. They run the Double/Single Lines (respectively), but in the Multi Lines you and the other player character fight them together.
** ''[[VideoGame/PokemonXAndY X and Y]]'' have a battle aginst Tierno and Trevor, with you teamed up with Serena/Calem. There is also a fight against Celosia and Byrony at the Poke Ball Factory.
** ''VideoGame/PokemonRanger: Shadows of Almia'' has a battle just before the FinalBoss where you fight the three bosses you just fought separately ([[DamageSpongeBoss Rhyperior]], Magmortar, [[TeleportSpam Gallade]]) at the same time. If you are playing a WIFI Mission where you have to help Darkrai[[note]]It was here for a limited time only, and it required beating Darkrai.[[/note]], at the end, when you least expect it... BAM! '''You fight a second Dual Boss''', which is Drapion and Gliscor, the bosses you encountered earlier in the game.
** ''[[VideoGame/PokemonMysteryDungeonExplorers Pokémon Mystery Dungeon: Explorers of Time/Darkness/Sky]]'': The first bosses are a ([[WarmUpBoss very weak]]) Koffing and Zubat at the end of Beach Cave. Then try this again in the second story, where you have to take on the '''entire guild''' at the same time. In Explorers of Sky, there is a DualBoss in the first special episode before fighting Jirachi, where you have to fight [[spoiler: Snover, Gligar, and Bagon]] at the same time while playing as Bidoof.
* Liz and Ard from ''VideoGame/{{Wild ARMs 2}}''.
* The end of the first "episode" of ''[[LegoAdaptationGame Lego Batman]]'' features a dual boss fight involving Batman, Robin, the Riddler and Two-Face. It's somewhat reminiscent of ''Film/BatmanForever''.
* At the end of ''IcewindDale II'', the player gets to fight the halfbreed twins Isair and Madae (respectively a high-level sorcerer and cleric). They are aided by a wide variety of pretty competent EliteMooks
* ''NeverwinterNights'' has penultimate boss fight against Corrupted Copper Dragon and Corrupted Silver Dragon.
* In ''NeverwinterNights2'' You will need to fight 2 Black dragons after you try to strike down Crystal Heart for Nolaloth.
* ''JetForceGemini'' brings us the Escebone Mantises, a twin pair of [[ExactlyWhatItSaysOnTheTin gigantic cyborg mantids]]. [[ThatOneBoss They're quite hard to beat.]]
* ''VideoGame/{{Touhou}}'':
** In ''Mystic Square'', the fifth game, we have Yuki and Mai as the stage 4 bosses. Interestingly, after downing one, the other gets a new, much more dangerous moveset and heals to full.
** ''Perfect Cherry Blossom'' has the Prismriver sisters... kind of. The spellcards where all three are together are much more like having one boss with three hitboxes.
** ''Imperishable Night'' has a thematic example: At the end of Final A, Kaguya comes to assist Eirin. But it's a survival card and the bosses don't move, so there being two of them makes no difference.
** ''Fairy Wars'' takes it {{Up To|Eleven}} [[IncrediblyLamePun Three]] with you having to face the three bosses of the three stages all at once after you have beaten them! Then the [[BonusDungeon Extra Stage]] pits you against both of the midbosses at once.
** In ''Ten Desires'', Seiga, the stage 4 boss, fights alongside Yoshika, the boss of stage 3, resurrecting her every time she is defeated.
** Subverted in stage 4 of ''Double Dealing Character''; it looks like you will have to fight both Benben and Yatsuhashi Tsukumo at first, but then it turns out you only fight one of them (which one depends on your shottype). Played straight in the Extra Stage, where you fight both as the midboss.
** In the fangame ''VideoGame/TouhouLabyrinth'', the Hibachi twins hit every note of this trope. One is immune to magical attacks, the other to physical attacks. When one is killed, the other gains significant stat boosts and a new arsenal of party-wiping attacks.
** In ''Touhou'' fangame ''Mystical Chain'', all boss fights are like this, but it also has a slightly off-kilter example in its fight with Fujiwara no Mokou and Kaguya Houraisan: it's really them fighting ''each other'', and [[IgnoredEnemy you're just collateral damage]].
* Lechku and Nechku from ''{{Okami}}''. Two wolves versus two [[NinjaPirateZombieRobot demonic clockwork gentlemanly owls.]] The owls are the bosses.
** There's also Sen and Ryo from {{Okamiden}}
* Solt and Peppor, several times in ''VideoGame/ChronoCross'' (sometimes joined by Ketchop).
* ''VideoGame/CaveStory'':
** The Final Boss has you fight [[spoiler:the Undead Core, alongside a transformed Sue and Misery]]. On top of that Misery also summons more creatures for you to kill.
** Earlier in the game, a pair of dragons function as a SkippableBoss, as pictured above.
* The Dragon Angels in ''VideoGame/LunarTheSilverStar'' are the last obstacle you have to reach before getting Althena's Sword, the last piece needed to complete the Dragon Armor ensemble and tackle the Magic Emperor.
* ''VideoGame/ChronoTrigger'':
** A couple of bosses in , including Masa and Mune (before they do a DBZ-style FusionDance), and Azala and the Black Tyranno. The Golem Twins, who each counter with "copycat" attacks, are a more infamous example.
** The DS version has the Archeofangs, two very annoying bosses who need to be defeated within mere seconds of each other (or at the same time) or the one alive will revive the other at full HP. Doing this is much harder than say, ''FFV's'' Gargoyles, because the two Archeofangs have different stats and weaknesses. To make matters worse, they also [[ManaDrain drain your MP]] throughout the fight as well. Fortunately, their attacks tend to be relatively weak.
* ''Franchise/BreathOfFire'' series:
** ''VideoGame/BreathOfFireI'': The "SlimeX" fight against 3 slime-men, who later merge into a single entity.
*** There's also the boss fight against 3 K.Roach.
** ''VideoGame/BreathOfFireIII'': Balio and Sunder HopelessBossFight the first time, and difficult (but possible) to kill the second. The [[OneWingedAngel third]] [[FusionDance time?]]
*** Also, the Ammonites. And the "Sample" bosses near the end of the game, most of which are old bosses fought as a pair or more (2 Mikbas, 5 Rookies, 3 Stallions, etc...)
** ''VideoGame/BreathOfFireIV'': The four pillars inside Ershin's mind and the Grunts during the Scias/Ludia arc.
* ''VideoGame/StreetsOfRage'':
** Mona and Lisa in the first and third games. In the first game, they were merely {{Palette Swap}}s of Blaze, but in ''3'', they had their own sprites and WonderTwinPowers (and yet they are much easier than in the first game).
** In two-player mode, every boss except [[FinalBoss Mr. X]] is a dual boss battle.
** The second game had robots [[ThemeNaming Particle and Oxygen]] as the bosses of Stage 7. The 6th boss is basically a repeat of the second and third bosses.
* ''VideoGame/KingdomHeartsII''
** Volcanic Lord and Blizzard Lord from.
** The KH series has a few more which are essentially two-part bosses, such as Barbossa and Clayton.
** Then there's the Crimson Prankster in ''[[VideoGame/KingdomHearts358DaysOver2 358/2 Days]]'', who revive each other if not killed in quick succession.
** ''VideoGame/KingdomHeartsBirthBySleep'' gives Aqua a wonderful fight against [[Disney/{{Hercules}} Hades and the Ice Colossus]], a copy of the Ice Titan, during her storyline.
** KH series loves this, especially to up the power on some arena bosses, who were usually a problem alone, but as a pair are [[BlatantLies quite more fun]]. [=KH1=] had [[VideoGame/FinalFantasyVII Cloud]] and [[strike:Squall]] [[VideoGame/FinalFantasyVIII Leon]]. [=KH2=] had [[VideoGame/FinalFantasyVII Tifa and Yuffie]]. BBS had [[Disney/{{Hercules}} Hades]] and [[VideoGame/FinalFantasyVII Zack]].
* ''RiseOfTheTriad'' has an add-on, appropriately-titled ''Extreme RiseOfTheTriad'' (now available as a free download from 3D Realms), where one of the levels forces the player to fight two copies of the game's second boss. Only one of the two bosses needs to be killed by the player to end the level, but it makes the task ''much'' harder than fighting just the one, like in the regular game.
* ''AnotherCenturysEpisode'' likes to dabble with this, sometimes pairing up major antagonists or [[TheDragon Dragons]] from [[MassivelyMultiplayerCrossover different series]] to wail on you.
* ''VideoGame/VirtualOn'':
** Force had A-Jim, ThatOneBoss from the previous game, ''Oratorio Tangram'' team up with a DistaffCounterpart of itself. To be fair, this was because Force had a major emphasis on two-versus-two combat.
** ''Force'''s stripped-down console port ''MARZ'' also played up the two-on-two gameplay, not only by having a couple of QuirkyMiniBossSquad Dual (and Trio) Bosses, but also by having [[ThatOneBoss Those One Bosses]] from other games in the series (WaveMotionGun -bearing MilitaryMashupMachine Z-Gradt and LightningBruiser Jaguarandi) Assault you in pairs while teamed up with exact copies of themselves.
* ''VideoGame/LufiaIIRiseOfTheSinistrals'' has an interesting variant. The boss of the Sword shrine is a pair of {{Monster Clown}}s who fight separately but automatically revive when you kill them. Once you've beaten them both once, your party works out they're reviving each other so you split your 4-character party into pairs to fight them both at the same time, played out as 2 consecutive boss battles.
* Juli and Juni in ''VideoGame/StreetFighterAlpha 3''.
* One of the forms of the final boss of ''VideoGame/{{Rayman}}''.
* ''{{Spyro}} 3'' did this with a pair of Eastern dragons.
* ''Manga/OnePiece: Unlimited Cruise'' has a number of DualBoss fights.
** Episode 1 has a battle against Captain Kuro and Don Krieg. Only the former is a real threat, almost raising the fight to ThatOneBoss status.
** Episode 2 has a few of them. You fight Red Haired Shanks and Dracule Mihawk at the end of island 2. There is also a bonus DualBoss on the same island against Rob Lucci and Paulie. Island 3 has a boss fight halfway through against Kaku and Rob Lucci, both in their Devil Fruit forms.
* Emperor Fossil and Queen Fossil in ''VideoGame/{{Darius}} Twin''.
* ''VideoGame/DevilSurvivor'':
** one character who particularly likes these: [[spoiler: Kaido.]] Most of your battles involve another character fighting alongside them: [[spoiler: Honda in most cases, and ''Midori'' during one possible plot twist.]]
** There's [[spoiler: the last two Devas]], who team up to fight you [[FlunkyBoss and bring six or seven teams of lesser demons with them.]]
* Randy and Andy from ''VideoGame/RiverCityRansom'', as well as Benny and Clyde.
* In ''VideoGame/SpaceChannel5 Part 2'', the first part of the King Purge battle has you taking on Purge and the Mecha President Peace.
* Double Tusk of ''VideoGame/DonkeyKongJungleBeat''.
* ''VideoGame/FinalFantasyV'': Two Gargoyles guard the location of each sealed tablet; You must kill them at the same time (or at least, one after the other within a short window), otherwise one will revive the other.
* ''VideoGame/GrandTheftAutoViceCityStories'' features [[spoiler:Sgt. Martinez and Diego Mendez]] during the final fight.
* In ''VideoGame/{{Evolva}}'', the bomb which is [[EarthShatteringKaboom about to blow up the planet]] is guarded by two identical giant parasytes.
* In ''VideoGame/KeithCourageInAlphaZones'', the fifth boss is a duo of two {{Recurring Boss}}es, and the FinalBoss is a PaletteSwap of the fourth with the addition of an invincible companion. The first boss also comes in two.
* ''{{Plok}}'' has the [[http://www.youtube.com/watch?v=FvgW3XBo_9Q Bobbins Bros]]. Later on in the game (during a flashback when you play as Plok's grandpa), you have to fight against '''''[[WolfpackBoss THREE]]''''' of them.
* ''VideoGame/InTheHunt'' has your submarine fight two snail-like submarine robots as a boss. One always faces right and the other always faces left, but other than that, they share exactly the same attacks. Destroying one of them makes the other [[TurnsRed become a lot more aggressive]].
* The unreleased game ''ChimeraBeast'' had the first boss, two lamprey-like organisms which could only be damaged when their heads were visible.
* The Mu bosses in ''IllusionOfGaia'' are Jack and Silvana, a pair of married vampires. They battle together, complete with a combination attack. When one dies, the surviving spouse flies into a frenzy and TurnsRed. Generally considered ThatOneBoss.
* VideoGame/{{Half-Life 2}} ends with a fight against two Combine Gunships. While they are the most powerful enemies in the game, they make it even more obvious that the game doesn't have any kind of actual ending and you fight them only because the designers had no idea what else you could be doing once you reached the main villain who does not have any combat abilities at all.
* ''XMenLegends'' has a fight against Avalanche and Sabretooth, which is made stranger by the fact that they share the same voice actor. [[spoiler: Beat up Avalanche enough, he retreats and you win the fight. Sabretooth is unkillable - he'll just come back from offscreen. Makes sense with the HealingFactor.]]
** ''XMenLegends 2'' has Sinister and [[spoiler: the brainwashed Beast, who is undefeatable. Sinister will immediately make for his reviving machine, which will recharge Beast's health immediately.]]
* Most of the supervillain fights in ''MarvelUltimateAlliance'' are these.
* In ''VideoGame/Sonic3AndKnuckles'', Knuckles fights two sub bosses in Launch Base Zone Act 1 instead of Sonic and Tails just having one. If you play as Sonic and Tails together, technically it's Knuckles fighting you as a dual boss. Also Whisker and Johnny in ''VideoGame/{{Sonic Rush|Series}} Adventure''. [[note]] However, there is a mission that played said DualBoss, but although it played like normal, you must only defeat Johnny, because if you defeat Captain Whisker, you will fail the mission.[[/note]]
* NoMoreHeroes2
** [[spoiler:New Destroyman]], two cyborgs made from the severed halves of [[spoiler:the original Destroyman]]. One of them fights Shinobu up close with punches, while the other one fights at a distance with EyeBeams and [[CowardlyBoss runs away a lot]]. Because they have separate health bars and can revive each other if one dies, this fight becomes a very annoying game of chase.
** The trick is to completely ignore the cowardly one until you take out the brave one, then wait for him to fly over to revive his other half. It's entirely possible to interrupt the resurrection and kick the crap out of him, and he'll keep trying even as you trounce him.
* Komodo Moe and Komodo Joe, the BrainsAndBrawn SiblingTeam from ''Videogame/CrashBandicoot2CortexStrikesBack''. One will constantly try to hit you up-close, and the other throws respawning swords from a distance.
* In ''VideoGame/BioShock2'', after rescuing all the Little Sisters in a level in you have to deal with a pissed off Big Sister (which is also ThatOneBoss for a while). Near the end of the game you are in the room with just a pane of glass between you and the thing you came for when suddenly ''two'' Big Sisters come at you.
* ''VideoGame/Left4Dead'' has multiple Tanks attack you after the rescue vehicle arrives. Survival Mode can also see two (or [[OhCrap more]] Tanks at once, as does the finale of Swamp Fever in 2.
* ''{{Halo}} series'':
** In ''VideoGame/{{Halo 3}}'', the Covenant deploy two [[SpiderTank Scarabs]] at once. [[CrowningMomentOfAwesome Good thing you've got co-op. And you get flying vehicles right before it.]]
** On a lesser scale, any encounter with Hunters could count. They always appear in pairs, carry massive fuel rod guns, and have armor that reflects any shots not placed directly on the weak point.
** On the first level of ''HaloReach'', you have to fight two Zealots at the same time. This is one of only three encounters with Zealots in the game. On the final mission, you have a WolfpackBoss fight with the Field Marshal and two or three Zealots.
** The first game also has a dual Zealot battle on Two Betrayals, at least on Legendary.
* ''VideoGame/LastScenario'' has two DualBoss fights and NintendoHard WolfPackBoss fights.
* In its SpiritualSequel ''VideoGame/ExitFate'', you get to fight ThoseTwoBadGuys ([[RecurringBoss repeatedly]]), and there's a secret {{Dual|Boss}} BonusBoss battle.
* The rather obscure but excellent ShootEmUp "''SteelSaviour''" has a dual MiniBoss in the form of two cool looking flying thingies. When one is destroyed, the other goes... [[TurnsRed ballistic]]. Starts at 2:04 [[http://www.youtube.com/watch?v=UgmV7xaKkTA here]].
* ''VideoGame/KnightsOfTheOldRepublic'' series:
** On Korriban, if you decide to go Light-Side completely, then after [[spoiler:getting the star map in Naga Sadow's tomb, you may end up fighting both Yuthara and Uthar at the same time]], although they can both be easily weakened earlier- or you can persuade one of them to join you on the Light Side...
** The sequel has a Dual DuelBoss on Nar Shaddaa- Atton is caught in the bar by the Twin Suns, a pair of deadly Twi'Lek assassins. It's a fairly tough fight, and ends with them fleeing; [[DegradedBoss they're a lot easier the next time you meet them,]] as at that point, you have a full three-strong party...
* The Elites in ''VideoGame/HeroCore'', which are also [[spoiler:a MirrorBoss]].
* The Meta Rangers in ''VideoGame/ViewtifulJoe Double Trouble''. First, you fight Ranger Log, then Ranger Digi, then they team up to fight you on their final health bar. When you revisit the fight during the BossRush, they fight you together right from the start.
* ''VideoGame/MadWorld'' has the Masters, [[StarWars Jedi]] knock-offs that come in an older/younger pair (looking rather like Obi-Wan and Anakin). Their answer to the Force is magnets, so they're tethered to each other for most of the fight and accordingly share a health bar.
* In ''VideoGame/MetamorphicForce'', you fight a duo of small cyclops midway through the fourth level.
* At one point, ''VideoGame/ResidentEvil4'' pits you against two Gigantes instead of the usual one. [[SkippableBoss You can, however,]] [[BossArenaIdiocy just give one a lava bath.]]
** Before that, there's the optional Bella Sisters in the Ganado camp. You thought [[ChainsawGood Dr. Salvador]] was bad? Try two female versions at once.
* ''VideoGame/ResidentEvil5'' tops that with a two-on-two battle against Albert Wesker and [[spoiler:Jill Valentine]]. Played mostly for fanservice, as Wesker proves to be nigh unkillable and killing [[spoiler:Jill]] results in an instant game over. Your AI partner literally advises you to run and hide, and the fight automatically ends in seven minutes when Wesker runs out of spare time. Damaging Wesker enough causes the battle to end prematurely (which can be achieved by hiding strategically and attacking at certain opportunities) and is an unlockable achievement/trophy.
* In ''VideoGame/GodOfWar 2'', Lahkesis and Atropos.
* Gorc and Pic from ''[[VideoGame/DarkForcesSaga Jedi Knight: Dark Forces II]]''. The only thing that kept them from being [[ThatOneBoss that pair of bosses]] was their tendency to get stuck in the vent-lifts so you could choose to fight only one at a time. If you were lucky...
* The second time in ''GodHand'' that you encounter the Three Evil Stooges, Felix and Bruce take you on together, with Conchita dropping in and out of the fight from time to time. When you fight them in the arena, it is possible to cause this to happen by triggering more than one of their icons.
** As well as [[ThatOneBoss Gold and Silver]]
* In the flash game ''EpicBattleFantasy 3'', you face a 3 headed dragon. Each head acts as it's own boss, though, with different stats and health bars. When you kill one head, stats are doubled for the two remaining heads, and when you kill one more, the last head has tripled stats.
** [[spoiler:Godcat]] from Epic Battle Fantasy 4 has you fight each form seperately, then face both at the same time.
* ''VideoGame/SeikenDensetsu3'' has [[ThoseTwoBadGuys Bill and Ben]], a pair of ninja who you fight on two different occasions. They start out as a single enemy, but split into two after taking sufficient damage, [[AvertedTrope without]] [[ConservationOfNinjutsu losing any of their deadliness]]. Both times, but especially the second, they qualify as ThatOneBoss.
* Every time the main characters of ''VideoGame/DisgaeaHourOfDarkness'' cross over as bonus battles in other universes, they're usually fought in the order of Flonne -> Etna -> Laharl (with Flonne and Etna acting as backup).
* ''VideoGame/TheNinjaWarriorsAgain'' has a bastardly hard fight against Phobos and Deimos, a pair of giant silver and gold androids in Stage 6.
* ''VideoGame/{{La-Mulana}}'' does this exactly once, with the {{Mini Boss}}es Gozu and Mezu.
* The Incubuses in ''VideoGame/{{Odium}}''. Actually pretty weak both on their own and in tandem. Also sort-of overlaps with FlunkyBoss since there are two monsters with them that can inflict the annoying HarmlessFreezing on you.
* ''VideoGame/DeadRising2'' has the twins, who both come at you armed with katanas and can easily take you down in a few hits, making them ThatOneBoss. It's subverted a tiny bit though, because when you kill one of them, [[spoiler:you get a cutscene which shows the remaining twin commit suicide by impaling herself.]]
** Let us not forget the optional [[InsistentTerminology psychopaths]] [[http://www.youtube.com/watch?annotation_id=annotation_882872&v=h6DFSspnzcw&feature=iv&src_vid=Uu3-LXqI0KY Ted Smith and Snowflake]] and [[http://www.youtube.com/watch?v=lMVkiqXuTMM Reed Wallbeck and Roger Withers]].
* ''{{Vindictus}}'' has numerous examples of this trope, with anywhere from 2 to 5 bosses in a mission (not including mini-bosses). Depending on the mission, they are either identical or complimentary. In most missions, they appear at the same time, usually 2 or 3 of them. The Hoarfrost Hollow mission "Prepare for Counterattack" is a hybrid of this and SequentialBoss -- the mission starts out with 1 boss, and 4 more arrive, 1 every 2 minutes, as "reinforcements"; each one higher level than the previous. If they can't be killed fast enough, it's possible to end up fighting all 5 at once (it's pretty typical for solo players to have to fight the last 2 or 3 simultaneously).
* Quite a few examples in the ''VideoGame/DoubleDragon'' series.
** In the middle of Mission 3 in both the arcade and NES versions of [[VideoGame/{{Double Dragon 1}} the first game]], the player has to fight against twin clones of Abobo before arriving at the enemy's hideout. Later in Mission 4 (in the arcade version only), there's also a battle against twin clones of the Mission 1 boss (a black HeadSwap of Abobo with a Creator/MrT-style mohawk and beard) before the final boss fight with Willy and his bodyguards (who are all clones of the Mission 2 boss, who was in turn a head swap of the player character).
** In the arcade version of ''VideoGame/DoubleDragonII'', the player has to fight against twin clones of Burnov (the Mission 1 boss) near the end of Mission 3, and then twin sets of all the previous bosses (Burnov, Abore and Chin) before the boss battle with Willy in Mission 4. The final boss battle will be against two Lee Brother clones if a second player is present (one for each player).
** The NES version of ''Double Dragon II'' features the twin ninja bosses at the end of Mission 2, as well as the Lee Brother clones from the arcade version in Mission 8. Subverted by the Bolo enemies, who always come in pairs (with one exception in Mission 4) but never fight together (the second Bolo always appear after the first one is defeated).
** The Chen Brothers in ''Super Double Dragon'', Ron-Fu and Ron-Pyo, in the end of Mission 4. In the American version though, the player has to fight them separately, one in the upper balcony and the other in the lower balcony. In the Japanese version, both are fought at the same time on the upper balcony.
** Hong and Wong, the Twin Tigers, in the end of Mission 3 of ''Double Dragon Advance''. They're [[{{expy}} loosely based on]] the Chen Brothers from the SNES version.
** ''DoubleDragonNeon'' has the penultimate boss battle with Skullmageddon and [[BrainwashedAndCrazy Evil Marian]].
* Enki and Enlil at the end of Chapter 6 of ''VideoGame/FinalFantasyXIII''.
** Don't forget Jabberwocky and Bandersnatch, the [[PaletteSwap palette swapped]] versions of Enki and Enlil. Which can be fought as a regular mob not very long after their boss battle.
** ''VideoGame/{{Final Fantasy XIII-2}}'' has Pacos Amethyst and Pacos Luvulite, who revive each other endlessly, so you have to bring them both near to death before killing either one.
* The first phase of the final battle in ''VideoGame/MarvelVsCapcom3'' pits you against [[ChromeChampion metallic copies]] of any two of the following: DoctorDoom, [[Comicbook/DoctorStrange Dormammu]], [[StreetFighter Akuma]] and [[Franchise/ResidentEvil Wesker]] (the second joins about ten seconds into the fight). They share a life meter, so knocking one of them out kills both of them. Hitting both of them deals double damage, so hyper combos with large hitboxes are useful.
* The twin dragons Devaria and Givaria in ''{{Deathsmiles}}''' Extra Stage.
* Both battles with [[CatGirl Natia]] in ''[[VideoGame/{{Bomberman}} Bomberman Hero]]''. The first time, she's accompanied by the spider-like robot Cronus (though she mostly just floats around taunting you and providing CollisionDamage until Cronus is defeated, making this close to a sequential boss), while the rematch suddenly reveals that she has a twin.
* The first battle with "The Betrayers" [[spoiler:Devola and Popola]] in ''VideoGame/NieR'' counts, as does part of the second battle.
** Also, the first boss battle against Hansel and Gretel.
* The Katayanagi twins in the ''Comicbook/ScottPilgrim'' comic and its [[ScottPilgrimVsTheWorld live-action film]] and [[VideoGame/ScottPilgrim video game]] adaptations.
** Earlier in the game, you face off against Todd Ingram's bandmates Envy Adams and Lynette Guycott in a mid-boss battle in Stage 3[[note]]this is different from the comics, where Ramona fights Envy and Envy later beats up Lynette when she catches her making out with Todd[[/note]].
* The first boss in ''VideoGame/ChoRenSha68K'' is this. One neat thing is that you can use the charged ball attack they use for a one-hit-kill if you make them aim at each other before they fire.
* The Goat Sisters, a black and white humanoid goat-imp in ''VideoGame/RuleOfRose'' attack you simultaneously in a cramped space, making much of the battle a struggle at staying out of their weapons' range.
* The two snake things (Fune and Nahime) early on in ''VideoGame/MetroidOtherM''. Sometimes the tougher enemies can be fought in pairs or threes, acting as miniboss battles. Overlaps with WolfpackBoss in those cases.
* Yogleks & Omulgun in ''VideoGame/{{Ys}}''. Only Yogleks can be damaged, and when hit, they switch places.
* ''VideoGame/TheLittleMermaid'' has Flotsam and Jetsam as the bosses of the second stage.
* The [[http://www.youtube.com/watch?v=TpTRU-9LP_Y Apostles of the Seed]] Dusk and Dawn from ''VideoGame/{{Hellsinker}}'' tag team at you and also uses various combination attacks.
* ''VideoGame/EarthBound'' does this with the final boss, [[spoiler:though Giygas is invulnerable during the first phase, and Heavily Armed Pokey ditches fighting after that phase ends]].
* ''VideoGame/CityOfHeroes'' has a few occasions when you can find yourself facing multiple powerful bosses, but a classic example is during the Behaviour Adjustment Facility Trial, where the league must face Siege and Nightstar at the same time after defeating them each separately, and like many examples must be defeated at the same time to prevent regeneration. [[FlunkyBoss There are also continually respawning reinforcements.]] Somewhat subverted however in that the standard strategy has teams fighting them entirely separately, while coordinating the battles to ensure that they go down together.
* ''SpiralKnights'': the Roarmulus Twins are a pair of gigantic Gun Puppy turrets fought at the end of the Ironclaw Munitions Factory, invulnerable [[PuzzleBoss except when one of them hits the other with a rocket]]. They also appear in the Ironclaw Shadow Lair as the Red Roarmulus Twins. The Gloaming Wildwoods Shadow Lair ends with a pair of Rabid Snarbolaxes (who have Silkwings to heal them).
* ''VideoGame/CaptainAmericaAndTheAvengers'' has two sets of these as mid-level bosses appearing after a boss flees: Klaw and Living Laser in Scene 1, and the Controllers in Scene 5.
* The boss of the oil refinery in ''VideoGame/{{Shatterhand}}''.
* Two mobsters in level 3 (Cemetery) of ''[[VideoGame/TheSimpsons The Simpsons Arcade Game]]''.
* ''VideoGame/{{Terraria}}'' has The Twins, two giant robotic eyes connected by a string of flesh. One, called Retinazer, [[EyeBeams shoots]] FrickinLaserBeams at you, and the other, Spazmatism, uses {{Hellfire}}.
* The Architect's twin pet dragons found in the Silverite Mines in ''VideoGame/DragonAgeOriginsAwakening''.
* ''VideoGame/DemonsSouls'' has the Maneaters. Although the battle starts out with only one of them to deal with, another appears after a fixed portion of the original's health has been whittled away. As if this wasn't bad enough, the arena in which they are encountered also happens to be a narrow rooftop walkway which is exceedingly easy to be pushed or knocked off of.
* ''VideoGame/DarkSouls'': The Bell Gargoyles on the roof of the church in Undead Parish. Once you get the first one down to half its health, [[OhCrap another one]] appears that [[BreathWeapon breathes fire]] along with its halberd and axe-tail attacks, also with half a health bar. It's almost impossible to fight both of them with the area attack fire breath and tremendous physical attacks, so it's pretty much compulsory to summon Knight Solaire to tank their attacks while you hack away at their backs.
** Dragon Slayer Ornstein and Executioner Smough are found together as the first major boss in Anor Londo and are generally considered one of the tougher challenges of the game. Ornstein leaps and lunges with a lightning spear at high speeds. Smough stomps around at a slower pace, but his giant hammer smarts more and throws you around the arena. Any strategy other than continuously backing away to keep them both in sight is almost a [[TheChewToy guaranteed death sentence]]. Oh, and when you kill one of them, the other absorbs their partner's power and comes back stronger and fully healed: Ornstein becomes a giant with a virtual one-hit-kill move, or, alternatively, Smough gets a big lightning charge for his hammer. [[TheMasochismTango Fun]].
* [[VideoGame/DarkSoulsII The sequel]] has THREE examples:
** Two Dragonriders show up in Drangleic Castle, with one initially shooting from afar with a greatbow until aggro'ed.
** You fight Throne Watcher & Throne Defender at the same time. When one is defeated, the other will attempt to revive him back to full health, meaning that you must beat both at around the same time.
** The [[BonusBoss Darklurker]] will create a clone of itself that shares the same lifebar when you get it to around 50% health.
* ''VideoGame/{{Vigilante}}'' has the Mad Brothers (the Tough Brothers in the [=TG16=] version) as bosses of the [[DownInTheDumps junkyard level]].
* ''VideoGame/CustomRobo'' has Eliza and [[spoiler:her BackupTwin, Isabella]] as the penultimate battle of the game.
** Earlier on, after attempting to break up a domestic squabble, the husband and wife who had been fighting each other turn and fight the protagonist and Harry together.
* Father and Grandpa Andore in ''VideoGame/FinalFight'', who appear exclusively in the second area of the West Side stage in which the player must face both at the same time in a steel cage match. They are essentially stronger versions of the standard Andore enemies, who are {{giant mook}}s. To make sure the odds are stack against the player, the game throws a third Andore relative named Uncle Andore if the player has a partner.
* The first ''VideoGame/GoldenAxe'' has the Bad Brothers at the end of the very first stage.
* Tyrea and her Telethia guardian in ''VideoGame/{{Xenoblade}}''.
* ''VideoGame/KidIcarusUprising'' has [[spoiler:Magnus and Dark Lord Gaol.]]
* In the BossRush in the last level of ''FireEmblem'', [[spoiler:the Morphs of Lloyd and Linus]] show up together. Earlier on is Jasmine and Paul.
** In ''[[VideoGame/FireEmblemTellius Radiant Dawn]]'', there's Pain and Agony, and in the endgame, Lekain and Hetzel.
** Valter and Caellach team up to kill you in Chapter 15 of ''[[VideoGame/FireEmblemTheSacredStones The Sacred Stones]]''.
* ''VideoGame/GoofTroop'' has the red and blue skeletons at the end of Stage 3, followed in the next stage by Green Rumbler and Red Rumbler.
* ''VideoGame/{{Borderlands 2}}'' has you fight the brothers Boom and Bewm, with it turning into a FlunkyBoss after one of them dies.
* The early 90s arcade title ''Vendetta'' had the Rude brothers, a giant and a dwarf. The health bar only applied to the giant. Get that bar to zero and the dwarf would die with his brother even if you didn't hit him once, but if you hit him enough times he'd die, leaving his brother still standing. The bonus stage had the player fight every boss two at a time; three in the case of the Rude brothers.
* The "Giant Worms" in ''VideoGame/MagicSwordHeroicFantasy''.
* In ''VideoGame/{{Strider}}'', you get to fight against the 3 Kuniang sisters at the same time (and [[ProfessionalKiller Solo]], if you chose to ignore him when he first shows up). The sequel has the Kuniang sisters back, plus Hiryu gets to fight two Researchers who transform into a mutant walrus and wolf respectively.
** The Kuniang sisters return once more in the 2014 ''Strider''. First, you fight Pei Pooh by herself. Later, during the battle against Nang Pooh[[note]]who replaces Sai Pooh from the original games[[/note]]in the Residential District, you have to fight her and Pei at the same time. The third and final battle against them in the industrial district pits you against all three sisters (Pei, Nang, and Tong).
** In Strider's SpiritualSuccessor, ''VideoGame/CannonDancer'', you get to fight against the 3 members of the QuirkyMinibossSquad ''at the same time'', during the final stage.
* The Royal Knights and the 2nd Cyclops BossBattle in ''VideoGame/TheKingOfDragons''.
* Several of the [[ViewtifulJoe Bianky-like]] {{Mini Boss}}es in ''VideoGame/PanzerBandit'' come up in pairs of two.
* ''TwistedMetal 4'' includes a boss fight against Super Slamm and Super Auger.
** The ''Twisted Metal'' reboot includes a boss fight against the Brothers Grimm, formed by previously playable monster truck Hammerhead and newcomer Slayer.
* ''VideoGame/DungeonCrawl'' has the twin unique elves Dowan and Duvessa. Duvessa focuses on melee combat while her brother slings spells from a distance. If you kill one, the other [[TurnsRed gets a boost]]: Duvessa goes berserk and Dowan gets several significantly more dangerous spells.
* In the ZEXIS route of ''VideoGame/SuperRobotWarsZ 2: Saisei-Hen'', [[spoiler: you get to fight Grace O'Connor and Ribbons Almark at the same time, the former being the BigBad of the ''Anime/MacrossFrontier'' series and the latter being the BigBad of the ''Anime/MobileSuitGundam00'' series.]]
* In ''VideoGame/TimeCrisis II'', you fight [[TheDragon Wild Dog]] and [[BigBad Ernesto Diaz]] at the same time, though the battle ends with Wild Dog being defeated and you later fight Diaz in the final battle. Then in ''Time Crisis 3'', Wild Dog and his younger partner Wild Fang fight you together.
* In the PS3 version of ''VideoGame/EternalSonata'', you have to fight [[LightningBruiser Count Waltz]] together with [[MightyGlacier Ruined Body]]. In the original Xbox 360 version, you only had to fight Ruined Body.
* In ''VideoGame/WonderBoyInMonsterWorld'', Gragg & Glagg attack from either side of the BossRoom.
* ''[[VideoGame/DonPachi DoDonPachi]] dai ou jou [[BossGame Death Label]]'' puts a cruel twist on this at the end of the first loop by making you fight not one [[TrueFinalBoss Hibachi]], but ''two'' of them! They're actually at [[DegradedBoss reduced power]], as one by itself is hard enough. At the end of the second loop, you fight the two Hibachis again...this time at '''full power.'''
* ''VideoGame/{{RefleX}}'' brings us its Area 3 midboss, Gemini. True to what the [[WesternZodiac Gemini sign]] symbolizes, it's comprised of two entities. One unit can be damaged by your weapons and fires blue shots and a blue WaveMotionGun, while the other is immune to your shots and must be damaged by [[AttackReflector reflecting the aforementioned blue attacks]].
* Bimmy and Jimmy([[VideoGame/ANightmareOnElmStreetNES Freddy]] and [[VideoGame/FridayThe13th Jason]]), the bosses of the [[BigBoosHaunt "Boo! Haunted House"]] level in ''VideoGame/TheAngryVideoGameNerdAdventures''.
* In ''Aces Wild'', the third boss fight begins against Leslie Ruter. Once you knock his HP down by 25%, his twin brother Herman joins the fray.
* The Poppy Brothers in ''VideoGame/KirbysPinballLand''
* In ''VideoGame/ThePinballOfTheDead'', Judgement from the "Wandering" table is composed of a small imp, Zeal, and Kuarl, a giant suit of armor.
* Depending on what time of day you do the stages, ''VideoGame/PrinnyCanIReallyBeTheHero'' has a few paired bosses, including dragons and {{Magic Knight}}s.
* In a rare non-video game example, ''Roleplay/DestroyTheGodmodder'' has many cases of this, with borderline cases of the godmodder summoning secondary bosses to assist him being common.
* ''VideoGame/{{Shinobi}} 3DS'' has Trickshot, a pair of flying robots which have a combined form then split apart for the fight itself.
* ''VideoGame/ChildOfLight'' has the first boss, a pair of decapitated {{Living Statue}}s holding their heads. One of them can charge up a powerful attack, while the other can grant either of them a speed buff.
* ''VideoGame/CopyKitty'' has the hard mode version of the Kumalo boss.

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