Creator/BioWare and Creator/{{Obsidian|Entertainment}}, the makers of some of the most popular Western [=RPGs=] from the late 1990s onward, certainly know a thing or two about awesome bosses.
[[AC: VideoGame/BaldursGate series]]
* Final battle of ''Videogame/BaldursGate I''. Sarevok, being an extremely badass LightningBruiser, is so good at gibbing your entire party in seconds that when you finally kill him you'll be patting yourself on the back for days.
* ''VideoGame/BaldursGateII: Shadows of Amn'' has so many of them. How about...
** Jierdan Firkraag?
** Kangaxx. Immune to all weapons below + 4 and all spells, regenerates really fast and has an unlimited supply of Imprisonment.
** Ol' Jon Irenicus himself. Technically, there is little about Irenicus that distinguishes him from a really tough foe. But, oh, does this show the importance of plot, pacing, and structure. You encounter Irenicus in just enough different ways, in just enough different versions, and his influence in the plot [[KickTheDog kicks just enough]] different dogs in different ways. Each encounter seems the last. Then, there build up to the final throwdown is nothing short of amazing. After all of that, beating him for good? It's soooooo satisfying.
** And, of course, the really nasty Twisted Rune fight. It's almost mandatory when you're soloing a Sorcerer, too.
* ''VideoGame/BaldursGateIIThroneOfBhaal'' picks up the awesome boss trend and runs with it...
** The fight against Sendai. She's tricky, tough, and great deal of fun.
** The Improved Yaga Shura mod. Thought he was a pushover before? Think again. And he brings his army with him. His entire army.
** The final battle with the Ascension mod installed. True epic. [[spoiler: The entire Bhaalspawn Five, Sarevok, and Amelyssan. And you have Bodhi with you, or Balthazar (and he's replaced in the Five by Gromnir).]]
** Ascension converts the final level from a relatively simple marathon fight against Mellissan into a BossRush of epic proportions. The first indication the player has of this is when instead of ending her AGodAmI speech at the start by attacking the party, Mellissan dismisses you as beneath her notice then [[spoiler:resurrects Irenicus and Bodhi and sics them on you. Then for extra KickTheDog points she turns Imoen into the [[SuperpoweredEvilSide Slayer]], leaving the party to scramble around trying to stay out of her way until she snaps out of it (unless you're a heartless bastard and just kill her).]]
** Additional mods that are Ascension-compatible allow for things like recruiting Irenicus (think about it, you can have both games' Big Bads at your side in this battle, if you're the good type even having redeemed both), temporarily resurrecting several plot important characters from the past to fight at your side (including Gorion and Yoshimo), oh, and Demogorgon also shows up again. Bad luck for him that he just stepped into the sphere of Bhaal, where you can destroy him for good. This all combines to make the final battle into an ultimate showdown of ridiculously epic degree.

[[AC: VideoGame/PlanescapeTorment]]
* ''VideoGame/PlanescapeTorment'' has, as its approximate halfway point, Ravel Puzzlewell. The environs the fight takes place in are suitably creepy, and the preceding conversation has established her as nothing less than an outright ManipulativeBastard. She also summons [[WhenTreesAttack giant, corrupted tree-things]] to do her bidding, and her spells are nothing to sneeze at either.
* There's also the NEXT big boss you face after [[spoiler: The fallen angel. It actually ''radiated'' power. And after you beat him, he's still not dead yet, and he says that the both of you are at such low power compared to last time you met.]]
* The final boss, [[spoiler:who is the titular character's own mortality given physical form. You don't have to use anything but words on him.]]
** [[spoiler:Ah, but what epic words. Listening to the smug bastard's endless gloating as he outlines everything that brought you there, then sending him reeling with one sentence as you throw the ArcWords in his face. Even with his next lines being just text, you can ''hear'' the fear start to creep in there.]]

[[AC: VideoGame/NeverwinterNights series]]
* While opinion may be divided on whether or not ''VideoGame/NeverwinterNights2'' is a great game, the FinalBoss and the penultimate boss fight are almost universally agreed to be awesome. First, [[spoiler: each of your party members are tempted to the DarkSide in turn, with their acceptance or rejection based on first their alignments (Good characters never turn) and then their loyalty to you.]] Many [[TheReasonYouSuckSpeech speeches]] are given, and [[ShutUpHannibal affirmations of loyalty]] are made. Then you beat up TheDragon and whatever allies he has. Then the real BigBad comes through the portal, and he [[spoiler: tempts YOU]]. Then you beat him up. In both cases, you have your entire party fighting--some six to ten level 20 characters. [[spoiler: If you go to the DarkSide, you and maybe one other character have to fight your surviving party members while the King of Shadows watches. This results in a BadEnd, of course.]]
* ''[[VideoGame/NeverwinterNights2 Mask of the Betrayer]]'' has the boss fight at the end of chapter 1, against Okku and his SpiritArmy. It's quite difficult, even with a party of four. It's recommended that you [[ShootTheMedicFirst take out the lesser spirits first]].
** The last battle is a [[spoiler: [[BattleInTheCenterOfTheMind battle against the Faceless Man for control over your soul, INSIDE your soul]] ]]. He attacks the spirits of your past within you, and you have to stop him and chase him down to the very core of your being. Defeat him there, and it's up to you whether LoveRedeems, [[HeroicSacrifice some sacrifices have to be made]] or [[FromNobodyToNightmare you've had enough and you want some revenge.]]

[[AC: Franchise/StarWars: VideoGame/KnightsOfTheOldRepublic series]]
* Darth Malak, anyone? The most powerful enemy in the game, [[DuelBoss alone]], clashing with you in a lightsaber duel while aboard his fortress in a manner not unlike Luke vs. Darth Vader in ''Return of the Jedi''. The emotional impact behind this battle - [[spoiler:Revan, fighting his/her old apprentice to either redeem him/herself or claim Sith Lord supremacy]] - ''combined'' with the fact that it's a friggin' ''lightsaber duel'' has to make this one of the most awesome fights in video games.
* Facing off against some of the Sith teachers on Korriban. Not quite as epic, but almost as fun. Depending on how big a [[VideogameCrueltyPotential bastard]] you want to be, [[SadistTeacher Jorak]] [[AxeCrazy Uln]] can lead to fun times with [[PsychoElectro lightning bolts]] for one of your [[SmugSnake douchebag]] [[TheRival fellow students]]. Or the final encounter with Yuthura and Uthar -- depending on whether or not you went for the straightforward option, the double-cross, or the ''double'' double-cross, it can range from a truly kickass DualBoss fight, a MeleeATrois, a two-on-one fight with optional backstabby goodness, or an honest-to-God SugarWiki/{{Heartwarming|Moments}} HeelFaceTurn. Ah, choices, choices...
* The temple-top fight against [[spoiler: Bastila]] is a jaw dropper, too. Massive PlayerPunch for a light sider male.
* Darth Traya in the second ''VideoGame/KnightsOfTheOldRepublic''. You think you've won, and you would have, except for the ''three floating lightsabers'' Traya summons to kill you.
** And then there's her dialogue. By Wiki/TvTropes definition she may be a NietzscheWannabe, but if Nietzsche were a Jedi, she'd have convinced him to curl up and die a long time ago.
* The boss fight against Atris. No, not near the end, when you first meet her. It's a war of words where every self righteous comment she makes can be thrown back at her, to the point where she flies into a rage and declares that you should have died, before being called out on her loss of control. Then your light and dark side points are tallied up.
* It may be a GameMod, but ''Brotherhood of Shadow'' for KOTOR 1 has some whoppers. The first is a battle against Akirakon Sin, an ancient Sith warrior. He then forces you into a MirrorMatch, followed by spawing identical copies of himself and all of them attacking you. Then there's the insane Echani Jedi Solomon who has become ripping DrunkOnTheDarkSide and is just as bad as you'd expect. Then, you get sent ''back'' to deal with Sin, and he throws you through a series of fights, including ''Mandalore the Indomitable in orbit over Malachor V!''
* ''VideoGame/StarWarsTheOldRepublic'':
** Republic players get a view of Grand Moff Killran, a SmugSnake of an Imperial officer nicknamed [[NamesToRunAwayFromReallyFast "The Butcher of Coruscant"]] in the first flashpoint, but don't get a chance to wipe the smirk off his face until Maelstrom Prison. He shows up, sniping at you with a rifle from all the way across the room, sending hordes of mooks at you, and forcing your movement to a crawl. It's a long, hard slog, but wiping the floor with that jerk is ''immensely'' satisfying. [[spoiler:The fact you're doing this to rescue ''Revan'' from three centuries of torture just adds extra awesome, but the awesome has a spoiled aftertaste because...]]
** Imperial Players get the Foundry flashpoint instead. You already know you're in for a hell of a fight when the first boss introduces himself with [[spoiler: Statement: Silence, meatbags!]]. But you discover he's just TheDragon to a crazed Jedi who plans to wipe out ''98 percent'' of the Imperial population (too bad no one informs the Imperial players their own Emperor wants to wipe out 100% of the galactic population...). And by the time you reach [[spoiler: Revan]], he puts up a ''devastating'' LastStand, telekentically hurling heavy objects, throwing Force Lightening, and even [[ShoutOut "becoming more powerful]] [[Film/ANewHope than you can possibly imagine]]." It all ends in a painful IronicEcho.
** Both factions can take down Darth Malgus; possibly the most cunning and intellegent Sith of them all. To the Imperial players, he is a traitor usurping the Emperor, and [[FantasticRacism recruiting "lesser" species]] [[FelonyMisdemeanor into Imperial life]]. To the Republic, he is the butcher who slaughtered his way through the Coruscant Jedi Temple. He is ''tough'' and wicked fast, and if you do not interrupt his channeling of "[[Film/RevengeOfTheSith Absolute Power]]" it is a TotalPartyKill. Even better, he stuns your party and forces each player to fight him ''one on one'' (yes, even if one of those party members is a companion toon, which means he could theoretically get taken out by Dr. Cedrax...).
** Some of the class story bosses count as well:
*** Skavak for the Smuggler. Kicking his butt into next week because he ''stole your ship'' (and your new partner's favorite gun) is definitely worth it.
*** The Consular gets a NintendoHard on at the end of theirs with [[spoiler: Syo Bakarn]]. He throws you and you companion like rag dolls, he shoots Force powers. When you get him low enough, he attempts to ''[[TakingYouWithMe collapse the cavern on you all]]''. All while a remix of "Duel of the Fates" plays.
*** The Knight gets to fight the [[spoiler: Sith Emperor himself. (You just take out his current avatar and knock him down for a while.)]] Your only backup is the little astromech, you're in the center of the Dark Temple itself, and at one point, he spawns ''five'' clones of himself to battle.
*** The Imperial Agent gets a boss fight with [[spoiler:Darth Jadus]] that can actually be won by [[TalkingTheMonsterToDeath Talking The]] [[spoiler:[[TalkingTheMonsterToDeath Sith Lord]]]] [[TalkingTheMonsterToDeath To Death]] if you pick the right dialogue choices.
** The ''Shadow of Revan'' expansion: First of all, "Torch." [[spoiler: aka Shae Vizala, the Bounty Hunter who accompanied Malgus on his raid of the Jedi Temple]] The fact all the bosses are labeled in [[BilingualBonus Mando'a]] is a big clue as to what you're in for. Mandos love a good scrap, and Torch is hardly an exception. She uses her jetpack to rocket around an arena with holes in the floor venting volcanic heat, sometimes setting all but the edges of it on fire, shooting at the players and encouraging them to keep fighting in Basic and ''Mando'a.'' Even in defeat, she is very cordial by Mando standards. Needless to say, it made many players ''delighted'' when she showed up in the next expansion, both as an ally [[spoiler: and taking the title Mandalore the Avenger]].
** Second one from the expansion: [[spoiler: Revan's back...well, just his Dark Side which refuses to die]] and has gone ''completely'' insane, threatening to drain all life from Yavin IV in a half-baked idea to kill his archenemy once and for all. So, it's your character backed up with a ''astonishing'' small army of important [=NPCs=] like Darth Marr, Grandmaster Satele, and [[spoiler: the future Mandalore the Avenger]]. Said boss puts up the kind of fight you'd expect from someone who was a galactic legend.

[[AC: VideoGame/JadeEmpire series]]
* Considering that he was using you as an UnwittingPawn the entire game? Considering how callously he talks about his lost family, especially when you've got Dawn Star right next to you? It is ''very'' satisfying to pound [[spoiler:Sun Li]] into the ground.
** If you're fond of little Wild Flower, it is also terribly satisfying to kick Ya Zhen to the curb for terrifying the sweet little girl.
** You also have the option to redeem [[spoiler: Sun Kin. This is achieved by Sun Kin's spirit fighting the Death's Hand armour, under your control. Kin basically gets to redeem himself by beating up his own failures with a sword.]]

[[AC: Franchise/MassEffect series]]
* In general, the ''Franchise/MassEffect'' series doesn't have a lot of bosses. Some levels may end with fights against named characters, but in practice these are just named EliteMooks for a BossRoom. That said, when the series does give a proper boss fight, it tends to be epic. The proof? The below is basically ''all'' of the series' true boss fights.
* ''VideoGame/MassEffect1'' might not have the best combat system, but we get the boss fight at the end against Saren. You can fight him, or you can talk him into [[DyingAsYourself shooting himself in the head to escape indoctrination.]]
* Balak of ''Bring Down The Sky'' forces you into a SadisticChoice, let him escape or blow up the hostages. Choose the latter and after his boss fight you can kill him, repeatedly shoot him, and/or leave him to be taken in alive.
** Let him go, and in ''VideoGame/MassEffect3'', [[spoiler: he comes back. You can kill him or have him give the Batarian fleet to your command.]]
* The final boss of ''VideoGame/MassEffect2'': '''[[spoiler: Human-Reaper Embryo]]'''. You fight [[spoiler: a '''Reaper''']]. On ''foot''. Even if it's just [[spoiler: an incomplete one]], that's still one of the most awesome things in the entire game, and it's fought to some of the most awesome music in the game. Killing the [[spoiler: Human-Reaper Embryo]] pretty much confirms that yes, Shepard ''is'' the only one who can save the galaxy. [[spoiler: It also looks like the T-800 from ''Film/TheTerminator'' after its skin has been burned off.]] Reduced somewhat if you hit it with the Cain, a boss-killing mushroom-clouding explosive launcher that halves the boss' health if you hit it. (Which is more like taking off 1/4 of its health on the hardest difficulty.) Then again, using the Cain means you kill ''a giant mecha-Chtulhu with a nuclear bomb in the face''. Think about it.
** Though it's more of a mini-boss, taking down a [[spoiler: thresher maw, whose main strategy for defeating it is to, according to the Alliance, use heavy ordinance like TANKS or, according to Zaeed, "Run the f**k away in the other direction"]] on ''foot'' when the mission only requires you to ''survive'' it for 5 minutes is a SugarWiki/MomentOfAwesome, especially on Insanity difficulty. Even the krogan think so! If you manage to kill it the Krogan want to mate with you.
** The [[spoiler: Geth Colossus]] during Tali's recruitment mission. Three different ways to attack the damn thing, with geth closing in on you constantly from every angle, and [[ Tali's theme music]] blasting in the background.
** [[spoiler:Tela Vasir]] in Lair of the Shadow Broker, at least for Vanguards. [[spoiler:Vasir]] can use the same Biotic Charge ability Vanguards have, so much of the battle involves zooming around the battlefield like crazy. Even if you aren't a Vanguard, it's still an awesome fight. Also counts as ThatOneBoss.
** The fight against [[spoiler:The Shadow Broker himself also fits here.]] Particularly since it's a [[spoiler:[[AlwaysChaoticEvil yahg]], [[AlwaysABiggerFish which makes the krogan look like cuddly bunny rabbits]]. It wields a [[{{BFG}} M-76 Revenant assault rifle]], an [[LuckilyMyShieldWillProtectMe omni-shield]], and a [[DeflectorShields kinetic shield impervious to bullets, biotics, and tech strikes.]] Essentially, drain its health, and when the shields come up, ''punch it in the face''.]]
** Samara's loyalty mission has you try and get space vampire Morinth to seduce you (not easy if you didn't do some background research). Then you have to resist her mind control. Fail this and Samara comes in to save you, killing her own daughter in the process.
** Kasumi's loyalty mission where Hock is in an invincible gunship. She climbs up a structure, runs for Hock and jumps on the ship while in flight to take out its shields, before taunting him and jumping a hundred feet to do the splits as she hits the ground.
** ''VideoGame/MassEffect2'' has a slaver who holds planets ransom where he will release prisoners if he's not paid. Shepard calls him out on this then proceeds to blow him away.
** Recruiting Garrus. You fight off three of the best mercenary gangs, kill their leaders, and take out a gunship. Even better with the sabotage you can do before/during the attack.
* In ''VideoGame/MassEffect3'', the [[spoiler:Reaper Destroyer]] on Rannoch. Again, it's not actually that hard, but you're facing down [[spoiler:a goddamned ''Reaper'']]. It's amazingly epic and a fitting conclusion to the [[BestLevelEver Rannoch arc]]. Shepard paints a target on the Reaper while charging around like a ADD kid on Red Bull to avoid its laser, all so that every quarian ship in orbit can unload 20 ferrous slugs ''each'' down its throat.
** The one on Tuchanka is also pretty epic. The [[spoiler:Reaper]] is blocking the way to the Shroud facility, and the chance to destroy it conventionally has been lost. Instead, [[spoiler:you have to run towards the Thresher Maw hammers, and dodge the attacks of the Reaper and the numerous Brutes that are aiding it. Once you activate the two hammers, a ''huge'' Thresher Maw called Kalros, described as the mother of all Thresher Maws, is summoned to battle the Reaper and ''wins''.]]
** Kai Leng. After dealing with this slippery bastard throughout the game, it's satisfying to finally lay into him with all your might. Then, after you beat him, you get a true SugarWiki/MomentOfAwesome for Shepard.
--> '''Shepard:''' [[spoiler:[[AndThisIsFor That was for Thane/Miranda/Kirrahe,]] you ''[[ThisIsForEmphasisBitch son of a bitch]]''.]]
** While not technically a boss, [[spoiler: the final charge against Harbinger was pretty awesome, being the closest thing to a final boss the game has.]]
* Citadel's DLC final boss is [[spoiler:your clone. It's the same class as you, and will use mostly the same powers you have. Yes, that means a Vanguard clone will charge/nova you. Who didn't charge at your clone as a Vanguard after s/he charged you?]] Two squad members with you in ''extremely'' claustrophobic quarters ([[spoiler:the Normandy cargo hold]]), {{Mooks}} everywhere and [[spoiler:Maya Brooks]] firing on you at the same time. It is ''frantic''.
** The same DLC also has the trilogy's final BonusBoss: the Armax Arsenal Mirror Match which throws you against all six player classes ''[[BossRush at once]]'', resulting in you having to contend with every class's gimmick simultaneously. Dodging Vanguard charges is even more fun when you have to worry about the Sentinel spamming incinerate and that Infiltrator who disappeared when you weren't looking at the same time.
** Also in the Armax arena, there's the Fatal Error battle from the side mission. You end up going up against the boss-level mooks of multiple factions ''at the same time''. Bonus points for the Possessed Praetorian.

[[AC: Franchise/DragonAge series]]
* ''VideoGame/DragonAgeOrigins'' has a few:
** The Ogre in the Tower of Ishal. It's not just a WakeUpCallBoss, it's an ''awesome'' WakeUpCallBoss. Especially if you're playing a melee character and you get the final blow against it. ''You leap at it in BulletTime and stab it to death, tackling it to the ground''.
** The Fade Dream in the Circle Tower is a ScrappyLevel to many, but it does have the final boss against the Sloth Demon. It almost seems like the SmugSnake Demon is getting more and more desperate as he changes forms in a vain attempt to defeat you.
** The battle against [[spoiler: Zathrien]]. Fighting a powerful and decidedly ''not'' SquishyWizard [[spoiler: consumed by his rage and grief over a centuries old crime]] who casts some of the most powerful spells in the game and summons Ents into battle? While epic, it's the aftermath of the battle that's really awesome. The [[SugarWiki/AwesomeMusic boss music]] is icing on the cake.
** [[spoiler: The High Dragon]]. Unlike the other [[spoiler: Dragons]] who can be taken down fairly easily [[spoiler: Flemeth is stationary and the Archdemon is made easier with the support of an army and ballistas]] the High Dragon will have you on the edge of your seat. One wrong move and you're ''dead''. This battle rivals the [[spoiler: Dragon]] battles in the ''Baldur's Gate'' and ''Icewind Dale'' games for their sheer awesomeness.
** The Archdemon isn't as challenging in terms of gameplay as one might hope, but the ''scene'' is epic. [[spoiler: Fighting a demon-possessed dragon god and its army, with YOUR army including various characters you've helped along the way, on the roof of a burning fortress at night during a thunderstorm, with ballistae.]]
* ''VideoGame/DragonAgeII'' has a few. The Harvester, the High Dragon, and [[spoiler:Knight-Commander Meredith]] all have moments. The DuelBoss with the [[spoiler:Arishok]] is cool, if more difficult than the group fight.
** The DLC boss Corypheus is an incredibly epic battle, given that he's [[spoiler:one of the Tevinter magisters who tried to enter the Golden City and one of the first Darkspawn.]]
** The other DLC, ''Mark of the Assassin'', offers a couple more. The first one is the Alpha Wyvern, which can only be summoned to kill if you've gathered all different kinds of wyvern bait and poured them all at once in one big pile while [[BadassBoast proclaiming you will take a trophy that will become a ballad material]]. The second is a DualBoss - Duke Prosper riding his very own pet wyvern Leopold, firing explosive arrows at you and sticky grenades that act as bullseyes for the wyvern. It ends with Hawke dodging Leopold's attack at the last second, sending it along with Prosper off the cliff towards their deaths. You even get the chance to taunt the duke both before and after he falls and breaks every bone in his body.
* ''VideoGame/DragonAgeInquisition'' has the very final battle against the Elder One, [[spoiler: Corypheus]]. You've completely smashed his forces, and ruined all of his plans so that the Elder One has no choice but to [[spoiler: re-open the Breach]] to force a final confrontation. You fight him in the ruins of the Temple of the Sacred Ashes where the game began, but this time the Elder One uses his magic to [[spoiler: levitate the ruins into the air]]. This begins a running fight against the Elder One throughout the ruins while his pet dragon engages in an aerial battle against [[spoiler: a dragon of your ''own'' who is either Morrigan shapeshifted into one, or a special dragon you've gained the ability to command for this battle.]] Eventually you'll be forced to finish off the Elder One's dragon yourself before confronting him at the very top of the ruins for the very final part of the battle. [[spoiler:Defeating Corypheus for good and reducing him to a screaming wreck desperately calling out to Dumat for help before vaporizing him with the Anchor is a very satisfying end indeed.]]

[[AC: VideoGame/AlphaProtocol]]
* While you're still in Saudi Arabia, there's the interception of Al-Samad's missile convoy. You have to take out Shaheed's second-in-command to keep him from alerting the convoy to your presence, so if you sneak up on him, you [[CutscenePowerToTheMax perform a flying leap to his back, hurling him to his death under the treads of Shaheed's tank]], [[ImprobableAimingSkills block the convoy's progress across a bridge with a single pistol shot]], then have to fight a tank on foot while dodging its missiles. Chances are good you've overlooked the missile launchers so thoughtfully prepared for you.
* In the main game there are climactic battles at the end of each chapter. Moscow provides the best in and of itself as you close in on Konstatine Brayko, American 80s obsessed Russian mobster who just got done [[TortureTechnician torturing one of your allies]]. When you get to him, he's on a disco stage and the two of you engage in {{Pre Ass Kicking One Liner}}s set to a rousing guitar riff. When the battle starts, you realize it's [[SugarWiki/AwesomeMusic Autograph's "Turn Up the Radio"]] (they originally planned to use [[WhatCouldHaveBeen "The Final Countdown"]]). As soon as you manage to drop his health by a quarter, he shoots up on cocaine and [[KnifeNut comes at you with a knife]]. Accepted wisdom for this segment is to RUN until his high passes, [[spoiler: or if you've met Stephen Heck, [[CrazyPrepared spike the cocaine]].]]
* [[PlayerPunch MAAAAAAAAAARBUUUUUUUUUUUUUURG!]] is going to be your first thought as the Rome mission's boss fight starts up. After this guy [[KickTheDog Kicks The Dog]] in whatever way you choose to let him, busting a cap in his face is going to be satisfying to even the most Ghandi-like ActualPacifist on a no-kill run. Too bad that even if you put a few hundred assault rifle bullets through him, [[KarmaHoudini he gets away...]] [[spoiler: Unless you hit his BerserkButton.]]
* In Taipei you've been hounded by the ruthless and capable [[MeaningfulName Omen Deng]] since you started trying to stop the assassination of Ronald Sung. Your final confrontation takes place on a [[GetBackHereBoss construction scaffold, climbing up to balcony facing the platform where Sung is speaking]] where Deng decides to make his [[YouShallNotPass final stand against you]]. [[spoiler: What neither of you have realized is that you're both trying to stop the assassination, and as the fight comes to a close the real assassin takes the shot...]]

[[AC: Dungeon Siege III]]
* ''VideoGame/DungeonSiegeIII'' is full of these. From the fight against [[TheDragon Rajani]] [[spoiler: (another archon)]] who sets most of the arena on fire, through the Warbeast battle - a humongous monster in a mine, with enemies pouring in and friendly cannonballs exploding everywhere, the [[MookMaker Dapper Old Gent]], all the way to a ''5 stage brawl'' against [[BigBad Jayne]], the penultimate stage being a 2vs3, where the bosses ''combo your ass into oblivion!'' Hands down the best Obsidian boss fights.

[[AC: VideoGame/FalloutNewVegas]]
* ''VideoGame/FalloutNewVegas'' has very few traditional bosses, but the Giant Roboscorpion from ''Old World Blues'' is suitably epic. It's the size of a semi truck, has multiple attack modes, and -- importantly -- is fought in an arena that gives you multiple options on how to defeat it, depending on your character's strengths. Also, its onboard nuclear reactor goes critical after it's defeated, giving you a nice mushroom cloud finale.
* Legate Lanius, who is the FinalBoss for three of four endings, at least should you choose to not try and talk him down. Depending on the option you take, it is possible to end up with him and you going at it in single combat (best done with a melee weapon of your own), or with you trying to do this while he is [[FlunkyBoss sending hundreds of goons after you]]. The options and ways to take him down are endless, and the fight's even better if you're deliberately forgoing the PoweredArmor to fight him while on weaker terms.
** Even better since the release of the DLC ''Lonesome Road''. You can battle Lanius, who wears legionaire armour and wields the blade of the East, while wearing the Duster of the Courier and wielding the Blade of the West. East versus West in epic battle.
* The end fight of ''Lonesome Road'', when you have to fight wave after wave of the Marked Men. If you talked down Ulysses previously, he'll fight by your side too.