History Main / ReactorBoss

* In ''[[Videogame/BattleZone1998 BattleZone II]]'', the final ISDF mission has you entering the depths of the artificial planet, Core, to destroy the Scion's central control computer. [[LoadBearingBoss Destroying the computer causes the world to begin to break apart]] - with you [[CollapsingLair still in its tunnels]], leaving you precious [[TimedMission little time to get to the extraction point before you're left behind]].

* ''X-Men 2: Clone Wars'' on the SegaGenesis featured this on the second level (The Sentinel Factory). There was even a [[ChekovsGun conveniently placed emergency exit]] that you passed halfway through the level.

* ''[[RaySeries RayStorm]]'' has the final boss. Beating it causes the colony to explode and [[ColonyDrop drop into]] a [[HurlItIntoTheSun nearby sun]], destroying any threat of the Secilian Empire... and killing loads of innocent lives in the process.
* The Mammon Machine from VideoGame/ChronoTrigger, which is an [[BonusBoss optional boss]] fought in the [[OminousFloatingCastle Black Omen]]. It's a bit of a pushover, though...
* X-Men 2 on the SegaGenesis featured this on the second level (The Sentinel Factory). There was even a [[ChekovsGun conveniently placed emergency exit]] that you passed halfway through the level.
* The fourth stage of ''{{Ikaruga}}'' takes place [[BattleshipRaid in and around the flying fortress Misago]], and the end boss is the ship's core.

* Instead of a straight-out duel against the BigBad, like in ''Legend'' and ''Aniversary'', in ''TombRaider: Underworld'', the "final battle" is basically Lara running around the building-sized ForgottenSuperweapon dismantling it keystone by keystone, while the invincible BigBad [[spoiler: Natla]] flies around tossing fireballs at her.

* ''AirFortress'' on the original NES required you to fight one of these for every level. Miniature versions were also scattered throughout.

* ''{{Resistance}}: Fall of Man'' ends with you and a squad of British commandoes attempting to destroy the Chimera Master Tower's main reactor. This is actually one of the better ReactorBoss fights out there, as it involves a small war between the British commandoes and a small army of Chimera Advanced Hybrids, a couple Titans, and even an Angel or two.

* The ''SouthPark'' game for the N64 had one of these for the third level featuring the Visitors. You go to the center of their spaceship and try to destroy the core. The room is zero gravity and the core will shoot out lightning at you.

* The second half of the final boss battle in ''VideoGame/{{Ys}}: The Ark of Napishtim''.

* Most levels of ''{{PN03}}'', other than the true boss battles or {{Multi Mook Melee}}s, have you destroy CAMS energy cores, which are usually guarded by a number of {{sentry gun}}s.

* Most levels of ''{{PN03}}'' (other than the true boss battles) have these at the end.

** Its predecessor, Starfox had two reactor bosses. One in the Space Armada and one in Sector Z, which was twice as hard. Macbeth's boss could also be seen as a reactor boss.

* The final "boss" of the FirstPersonShooter ''Area 51'' is the alien spaceship's main reactor. It puts up slightly more of a fight than the ''Half Life 2'' reactor, but not by much.

* The final battle against Nexus in ''Breakdown'' is in many ways a ReactorBoss fight, since he's essentially a giant red ball in the center of the room (which you punch to death after breaking out of a hallucinary LSD sequence it tries to send you into).

* Chapters 15 and 16 of ''KidIcarusUprising'' (i.e. the [[spoiler: Aurum]] chapters) feature these. Pit even lampshades the lack of a traditional boss. Chapter 17's counts too, but with a twist: [[spoiler: you're technically fighting the Aurum Brain, but Pyrrhon is controling it. Or is it controling him...]]

* ''Gang Garrison 2'' has an original gamemode not in ''VideoGame/TeamFortress2'', where the goal is to destroy the enemy team's generator while defending your own.
* ''{{Halo}}: Combat Evolved'''s final battle consists of you trying to destroy the 4 cooling vents in your starship's engine room, in order to make the ship's reactor melt down and obliterate Halo. Meanwhile, Flood and Sentinels are attacking you the entire time you're running around the engine room trying to do this. In an oblique way, the final battle is against Guilty Spark, since he and his Sentinels are in the engine room trying to stop you, and defeating him is the reason you're trying to nuke Halo in the first place.
** Similarly in the penultimate level of ''{{Halo3}}'', you have to destroy the reactor of the Flood-infested High Charity, setting off a chain reaction to destroy the massive ship. Could be considered as a fight against the Gravemind itself, as the ship is literally covered wall-to-wall in Flood biomass.
* ''HalfLife 2'' ends with you blowing up the Citadel's main [[TeleportersAndTransporters teleporter]]. It's a TimedMission because you're trying to prevent Breen from teleporting away, and two gunships come in to shoot at you, but the teleporter itself does not move or defend itself.

* ''VideoGame/StarFox 64'' had a ReactorBoss late in the game, with the Bolse satellite. (Any remaining members of the Star Wolf team--all of them, if you didn't take a route through Fortuna--would also appear). This reactor would eventually start fighting back, as any panels on the core that were blown up would start firing lasers. Arguably, the mothership from Katina also might count, since it doesn't directly attack, instead just releasing {{Mook}}s and then revealing its core after you destroyed the four hatches or took too long, at which point you had all of one minute to destroy said core. (Yes, it would eventually reveal the core even if you didn't shoot the hatches, presumably to keep you from running up the score. Which was annoying, since it was tough to hit the medal total before this happened.)

* The arcade rail shooter ''Starblade'' has ''two'' of these. ''Galaxian³'', which is basically a six-player ''Starblade'', has one as a [[TimedMission Timed]] FinalBoss.
* ''{{Kirby}} Super Star'' and its remake have the Halberd's Reactor as a boss. Defeating it requires getting it to shoot lasers at itself.

** Revisited in ''VideoGame/KirbysEpicYarn'' with the halberd reactor and the Shmup level at the same time.

* The boss of ''SonicAdventure2'' level "Eternal Engine" is the power generator of the space colony ARK, which you fight as Tails riding his missile-equipped mecha.

* The [[spoiler:derelict Reaper]] mission in ''MassEffect2'' ends this way.
* The final Gummi Ship mission in ''KingdomHeartsII'', "Assault of the Dreadnought", has you flying inside a huge battleship and destroying the core. You don't actually need to destroy the core to finish the stage, but it does gets you bonuses.

* One possible path in ''R-Type Final'' has you facing off with the source of all the enemies in the game: a stationary generator which can spontaneously create every single type of enemy and object in-game.
* The final boss of Chapter 5 of ''{{Mother 3}}'' is Mr. Genetor, which is Thunder Tower's generator.
* The second half of the final boss battle in ''{{Ys}}: The Ark of Napishtim''.

* ''BionicCommando''. "So you think you can destroy the main system? You have no chance!"

* Somewhat subverted in ''FinalFantasyVII'' as there are two Reactor Bosses... at the start of the game, and the actual destruction of the reactors occurs via cutscene, with actual bosses you have to beat anyway.

* Somewhat subverted in Final Fantasy VII as there are two Reactor Bosses... at the start of the game, and the actual destruction of the reactors occurs via cutscene, with actual bosses you have to beat anyway.

* The final Gummi Ship mission in KingdomHeartsII, "Assault of the Dreadnought", has you flying inside a huge battleship and destroying the core. You don't actually need to destroy the core to finish the stage, but it does gets you bonuses.

* The final boss of Chapter 5 of ''VideoGame/{{Mother 3}}'' is Mr. Genetor, which is Thunder Tower's generator.

* ''Gang Garrison 2'' has an original gamemode not in ''TeamFortress2'', where the goal is to destroy the enemy team's generator while defending your own.

* The FinalBoss of ''{{Xenosaga}}'' Episode I is a giant reactor fused with a giant gnosis. Defeating it is necessary to shut down the Proto Merkahba and save the planet of Second Miltia from it.