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1[[quoteright:320:]]²[[caption-width-right:320: [[TagLine "Sometimes, the only way to defeat a predator, is to become one."]]]]²²''Metroid Fusion'' (subtitled ''Metroid 4'' in the intro) is an action-adventure platformer video game published by Creator/{{Nintendo}} for the UsefulNotes/GameBoyAdvance. It was released in North America, Europe, and Australia in November 2002, and in Japan in February 2003. The game is considered to be the fourth main installment in the ''Franchise/{{Metroid}}'' series; the intro alternatively refers to the game as ''Metroid 4.'' ''Metroid Fusion'' was developed by the same development team that created the previous ''VideoGame/SuperMetroid,'' to which ''Metroid Fusion'' bears heavy resemblance.²²Chronologically, ''Metroid Fusion'' takes place last in the fictional ''Metroid'' universe. The story centers around bounty hunter Samus Aran, who is sent by the Galactic Federation to assist Biologic Space Laboratories in their expeditions on the planet SR-388, which Samus had purged of Metroids in ''VideoGame/MetroidIIReturnOfSamus''/''VideoGame/MetroidSamusReturns''. While defending the scientists from the local wildlife, she gets infected by a previously undocumented gelatinous lifeform and later passes out while piloting her gunship. The organism has spread throughout her body and her biomechanical Power Suit, and the scientists surgically remove portions of the infected suit to no avail. In a last ditch effort, the scientists infuse Samus with a serum containing preserved Metroid DNA, which destroys the parasite and cures Samus.²²Now sporting much altered armor, Samus is sent to the B.S.L. space station to investigate an explosion. There, she learns that the station is swarming with organisms infected by more of the gelatinous lifeforms -- now called X-parasites -- virions that can replicate their hosts' physical appearances and memories, killing them afterward. The fact that the Metroid DNA saved her and allows her to absorb other X Parasites is now known to be because the Metroids, genetically engineered creations of the [[{{Precursors}} Chozo,]] were made to be predators of the X; the recent Metroid purge let them infect the creatures on SR-388 and spread once more. In order to check the spread of the infestation, Samus must work her way through the station under the guidance of her new gunship's Artificial Intelligence and eradicate the X Parasites and their host bodies, among them the SA-X, a clone produced from the remains of her Power Suit.²²The game is notable for having a much more in-depth plot than the previous games in the series, full of political and corporate intrigue and character interaction. While the first ''VideoGame/MetroidPrime'' game, released the same year, opted to tell its story primarily through scan logs, ''Fusion'' tells its story through dialogue with an AI commander and through Samus' InternalMonologue. As a result of this heavier emphasis on story, the game is more linear than the previous games as well.²²The game can be hooked up to the first ''Metroid Prime'' to unlock both ''VideoGame/{{Metroid|1}}'' and the Fusion Suit skin for ''Prime;'' those with ''[[CompilationRerelease Metroid Prime Trilogy]]'' for the Wii can unlock the Fusion Suit through its bonus credit system.²²An eight-page ComicBookAdaptation titled ''Metroid Fusion Special Edition: Rebirth of Samus'' was produced by the artist of ''Manga/MetroidSamusAndJoey'' as bonus content for its first [[{{Omnibus}} volume]]; it covers the events of the game up to the first BossBattle in abbreviated form.²²----²!! This game contains examples of:²* AbandonedLaboratory: The game takes place in a space station made of these.²* ActionGirl: Samus, at her most prominent. Even after facing a deadly parasite and given a minimal chance of survival, she's still up for taking bounties, as well as her deadliest mission yet.²* AfterBossRecovery: All the bosses and enemies are made of X Parasites that Samus absorbs to recover health, and the bigger bosses have more potent X for her to eat.²* AIIsACrapshoot: [[spoiler:Ultimately subverted with Adam. At about the point one might expect him to [[Film/TwoThousandOneASpaceOdyssey start singing "Daisy Bell,"]] he sides with Samus against the Federation and helps her destroy the X Parasites. It ultimately turns out that Adam's not a true AI either; he was human to begin with, and just had his mind uploaded before he died.]]²* AllThereInTheManual: The games are easy to understand plotwise on their own, but there's quite a bit of canonical backstory for both ''Zero Mission'' and ''Fusion,'' as well as the entire franchise on the whole, to be found in the manuals and the [[ two-volume]] [[ manga.]]²* ArtificialBrilliance:²** The X in general. The first few X will attempt to be absorbed, because the X are trying to infect Samus. After a while, when they realize she's just absorbing them, they'll try ''not'' to be absorbed. And then when the Cold-X start appearing, the cycle repeats.²** The SA-X as well, utilizing a bit of a CallBack, will attempt to freeze Samus with the Ice Beam, and then blow her to bits with a Super Missile because that's the most efficient way of killing a Metroid.²* ArtificialStupidity: The SA-X also has absolutely horrid looping programming, to the point most can be exploited for humor. Power Bombs in particular seem to completely throw its programming into an infinite loop when Samus isn't in a room needing the Power Bomb to advance. This can be exploited in the boss fight with the SA-X. There is a ramp above the recharge station in the room where you must send the space station into [=SR388=]. Continuously charging and shooting SA-X will cause her AI to instinctively charge at you with a Screw Attack in an infinite loop as long as you know what to do. ²* AsteroidThicket: During the opening, Samus' ship crashes into one of those. The asteroids look like they're only a few hundred feet across, and tightly packed.²* BagOfSpilling: Played with. Samus kept all of the weapon upgrades to her power armor. Unfortunately, her power armor was infected with a parasite which is now using all of those weapon upgrades to try to kill her.²* BaitAndSwitchBoss: A strange case of a boss being bait and switch for itself. When you first get to the water themed Sector 4, Adam mentions it was used to host the powerful [[SeaMonster Serris]] and that the X freed it for unknown reasons, suggesting a fight with the beast. And then you find its skeleton, a few rooms before having to fight an X clone of it. [[spoiler:Something similar happens much later in the game: the frozen body of Ridley crumbles to dust when you touch it, as the X already infected and copied it.]]²* BeautyIsNeverTarnished: Parts of Samus' suit have to be surgically removed, but not all of it could be taken off. This is due to much of her suit "fusing" with her central nervous system. She is given Metroid DNA to counteract the X parasite. This, along with her Chozo DNA, does not seem to affect her appearance in her death animation, though. It is also unclear whether or not she can ever remove her suit by choice.²* BigBad: The SA-X. It was the one responsible for the disaster and for releasing all of the captured X into the station. It is also responsible for all of the tactical and deliberate damage done to the station that hindered Samus' progress and blocked off necessary areas.²* BigEater: Samus's new Metroid DNA allows her to devour X-parasites in large numbers to heal herself, as opposed to the series norm of just picking up power cells for her suit.²* BittersweetEnding: Samus saves the galaxy again [[spoiler: and even reunites with former allies (even one previously dead). But in the process, she destroys a Galactic Federation space station and a planet, and was forced to defy orders to do so. Samus got new friends, but is now likely the most wanted criminal in the galaxy.]]²* BlindIdiotTranslation: Prima Games's two-in-one StrategyGuide for ''VideoGame/MetroidPrime'' and ''Metroid Fusion'' calls the Fake Chozo Statue "Elephant Bird", a mistranslation of "Birdman Statue", the Japanese name of Chozo Statues, since "Zō" can also be translated to the word "elephant" with a similar kanji.²* BlueMeansCold: The light blue X parasites freeze Samus solid for a few seconds.²* BodyHorror:²** The X provide excellent examples of this trope; it is in their very nature to absorb a lifeform from within and either impersonate them for a specific task, or modify the body of their host by using the genomes of previous hosts. This has interesting and disturbing effects, such as turning humans into zombies made of regenerating goo. They also turn Hornoads (an enemy from ''Metroid II'') from a relatively docile creature into a slavering, aggressive monster with MoreTeethThanTheOsmondFamily.²** For a prime example, see the last battle with the SA-X. In desperation, it [[spoiler:transforms from an exact Samus replica into what looks like a mashup of multiple creatures, whilst still showing bits and pieces of the original Power Suit embedded in its flesh]]. Notably, it resembles most a [[spoiler:Hornoad, which was the last host that particular X had before infecting Samus.]]²* BookEnds: The game provides four. The end to the original trilogy had [[spoiler:the Baby Metroid heal and give you a weapon to defeat the final boss, saving your life. In this game, the Metroid's DNA cures Samus of the X-Parasite infection (saving her life), and makes her able to absorb the X to heal her and replenish her supplies (giving her the weapon to eradicate the X).]] Also the ending, in which the SA-X, [[spoiler:saves your life, heals you, and gives you the weapon to eradicate the Omega Metroid.]] Also, [[spoiler:both the very first boss (Arachnus) and very last boss (Omega Metroid) are from ''Metroid II.'']] Lastly, while this is likely unintended, [[spoiler:Neo-Ridley's screams are the same as his original counterpart's screams in ''VideoGame/MetroidZeroMission'', which is a remake of the first Metroid game which came afterwards - timeline-wise, ''Zero Mission'' is first, ''Fusion'' comes last.]]²* BreakingTheFourthWall: A hidden Easter Egg can be found if you abuse the Shinespark to get Samus to a Navigation Room after defeating Nightmare but before getting the Diffusion Missiles. Doing so will cause Adam and a mysterious figure to congratulate her, with Adam musing: "I wonder how many players will see this message?"²* CallBack:²** In the lower part of Sector 4 after you beat Nightmare, [[spoiler:you have to Power Bomb a certain glass tube to move forward, just like how you accessed Maridia in ''Super Metroid''.]]²** Retroactively. Computer Adam asks "This Adam, would he sit in a cozy control room and order you to die?" Which is ''exactly'' how he behaves in ''VideoGame/MetroidOtherM''.²* CartoonCreature: Nightmare is a bizarre bio-mechanical lifeform that doesn't land in any identifiable species.²* CentralTheme: Sometimes to be a true hero, we have to become what we fight against. This is seen two-fold throughout the game:²** On her own, Samus is ultimately powerless against the X. Her attempts to ward it off on SR388 amounted to nothing. When she was injected with the Metroid Vaccine, she became partial Metroid herself, and thus completely capable of destroying the X. She became the very thing she's been fighting in just about every game to date.²** Despite being a lone-wolf bounty hunter, Samus clearly still cares about maintaining stability in the galactic civilization. However, she recognizes that the Federation is WAY out of their league [[spoiler: when they decide to capture the X, especially the SA-X, for their military applications. However, the only way for Samus to solve the issue and prevent the X from leaving is to crash BSL into SR388 and destroy the X that way. However, in doing so, her action is basically interpreted as an attack on the Federation and thus the galaxy at large, the very thing she's constantly fighting against]]. However, Adam reassures her that somewhere, someday, someone will understand.²* CheckPointStarvation: Once the power goes out, the only place you can save is your ship. Your next objective is a long slog through the core against powerful Kihunters, fully-powered Zebesian Space Pirates, and the Yakuza boss, all of which are [[DifficultySpike a huge step up]] from the enemies you've been fighting so far. Once auxiliary power is restored, a save point is right next door. It's even worse in 1% completion, because most of the enemies can kill Samus in one hit, including the boss, which is one of the contenders for the hardest boss in the game.²* ChekhovsGunman: The Etecoons and Dachoras from ''Super Metroid'' [[spoiler:come back in this game, and this time THEY save you. After needing saving a second time, but still.]]²* ChestMonster:²** One of the Core-X impersonates a Chozo Statue holding a powerup. Touching it damages you and prompts it to revert to its true form for a boss fight. [[spoiler:The fact that it is revealed to be holding the already-acquired Morph Ball gives it away.]]²** There are also traditional chest monsters. There is one hostile Energy Tank and a Missile Tank mimic in the game with the real one sitting in the same room or the one behind it.²* ClippedWingAngel:²** When the SA-X takes critical damage, [[spoiler:it turns into a towering bug eyed monster... With almost no health left and no projectile attacks.]]²** The X core left after defeating a boss also allows some breathing space. All it can do is ram into you, or attempt to shoot you if it has a beam upgrade. It also spawns X that will heal you if you shoot with the beam, and it only takes a few missiles to destroy completely.²* ClimaxBoss: Nightmare. It has been foreshadowed throughout the game, even making appearances in the background of Sector 5 at the end of the first visit, and then it causes the most destruction to the station firsthand, including destroying most of the cooling units of Sector 5 and breaching a water containment unit from Sector 4. It is also arguably the most difficult boss in the entire ''series'' much less the game, and its defeat grants you enough defensive ability to reliably take on the rest of the game. As far as its impact on the subsequent narrative goes, [[spoiler:you must take a detour through Sector 4 that leads to you unlocking the Level 4 security doors and downloading the Diffusion Missiles, both of which get you chastised by Adam for not following procedure and providing Samus the first major hint that she is being lied to.]]²* ColonyDrop: B.S.L., at the end, [[spoiler:ends up with its orbit altered to intercept [=SR388=]. It crashes down on the planet with its self-destruct activated, destroying both it AND the planet.]]²* ColorCodedForYourConvenience: The doors are color coded by security clearance. Samus needs to find the override controls for each security level to unlock them. [[spoiler:This becomes a plot point, as unlocking the controls also allows the X-parasites to spread further through the station.]]²* ContinuityNod: Ridley's desiccated corpse appears as a recolor of his ''Super Metroid'' sprite [[spoiler:before being taken over by an X-Parasite and transforming into Neo-Ridley, which uses a completely different sprite.]]²* ContinuitySnarl:²** The way Samus' suit works in this game (particularly how it functions when Samus in unconscious) is very contradictory to other games, especially ''[[VideoGame/MetroidOtherM Other M]].'' ''VideoGame/MetroidPrime3Corruption'' however, seems to follow this rule when Samus was in a coma herself, and her Varia suit had to be altered to use Hyper Mode.²** Compared to ''VideoGame/MetroidIIReturnOfSamus'', [[spoiler:the Omega Metroid]] is portrayed in a completely different manner than in that game. The ''Metroid II'' version could fly, breathe fire, and was invulnerable to the Ice Beam and had to be killed by missiles. In ''Fusion'', it can only claw swipe, doesn't fly, and is ''killed'' by the Ice Beam. Its later portrayal in ''VideoGame/MetroidSamusReturns'' is more in line with its ''Fusion'' counterpart (although it retains its fire-breathing from ''Metroid II''), suggesting that this may have been a deliberate {{retcon}}.²* CoolStarship: Samus' gunship. The loaner ship she gets from the Federation after totaling her own in the opening may count as well.²* DarkerAndEdgier: Than the previous games. ''VideoGame/SuperMetroid'' was darker than the previous series, but this game is almost a SurvivalHorror game in tone. Samus has to run for her life should she encounter the SA-X, who possesses her upgrades and Ice Beam. Not to mention the Nightmare is one of the most horrifying bosses in a UsefulNotes/GameBoyAdvance game. [[spoiler:Even the formerly benevolently portrayed Federation is shown to have shady goals that force Samus to turn on them, which she realizes will make her viewed as an enemy.]]²* DavidVersusGoliath: Many bosses, especially [[spoiler:Nightmare]], are much bigger and more dangerous than Samus.²* DevelopersForesight:²** After getting the Varia suit back, the formerly harmful blue X become harmless like all the other types, but the X (who intentionally suicide bombed you to weaken you) don't know that yet, so rather than immediately starting to run away, the first few blue X you find will continue to suicide bomb you, only running once they see it's stopped working.²** You can even keep on purposely avoiding the Blue X to prolong the time it takes for them to stop the kamikaze attacks.²** Even with all defensive upgrades, you still take more damage per hit than most other games in the series, to reflect the complete downgrade in armor that Samus is stuck with. It's only because she can absorb the X that she even has a chance.²** Through a sequence of shine sparking, it is possible to make it back to the Navigation Room at the beginning of Sector 4 after defeating Nightmare without going the long way and getting the Diffusion Missiles. Adam and the unknown Federation member do have something to say about this.²-->'''Adam:''' [[BreakingTheFourthWall I wonder how many players will see this message...]]²* DifferentlyDressedDuplicates: The SA-X is a perfect copy of Samus's Varia Suit... Except the [[ProphetEyes SA-X's eyes are blank and white.]] However, in this game, Samus herself isn't wearing her iconic Varia suit ''because'' the SA-X overtook it, so she's wearing the more organic and streamlined Fusion Suit.²* DummiedOut: In the game's hidden Debug Room, you can find sprites from ''VideoGame/WarioLand4''. The reason for this is because this game is built on a heavily modified version of that game's engine.²** The Debug Menu is still left intact, but it cannot be accessed through normal gameplay. Cheats have to be involved to access it. Much like ''Super Metroid'', you can toggle which powers to have on and/or off, like having the Charge and Ice Beam, and just that combo.²* EarthShatteringKaboom: [=SR388=], when you [[ColonyDrop collide the B.S.L. station]] with the planet. [[spoiler:The station's self-destruct had been activated and its orbit had been altered to intercept the planet. The explosion is powerful enough to completely destroy the planet.]]²* EleventhHourSuperpower: The Screw Attack is obtained extremely late and is useful for connecting all the sectors up, but the main example is [[spoiler:the usually early game item the Ice Beam, which is gained from the SA-X along with an unnamed suit when the Omega Metroid kills it at the end of the game. This allows Samus to handily win when it was hopeless before.]]²* EvilIsNotAToy: The Federation seems to think it is, because they [[spoiler:first have been trying to weaponize Metroids, which never ends well, and then later on have thoughts on weaponizing the SA-X, which is even less desirable. Samus detonating the station and taking everything therein with it is her attempt at sending that message but the ending suggests all it will accomplish is making her a wanted fugitive in the eyes of the Federation and that the Federation probably doesn't care that they're messing with things way over their head.]]²* EvilVersusEvil: The X parasites and Metroids '''''REALLY''''' don't like each other. Put an SA-X and Metroids in the same room, and they'll both ignore Samus and go right for each others' throats (or the nearest anatomical equivalent). There's an actual canon reason for this: [[spoiler:The Chozo designed the Metroids in the first place to prey on the X, right down to the cellular level (hence why the Metroid vaccine works). After absorbing Samus' abilities, the X can now fight back.]]²* ExactTimeToFailure: Three times: stopping the boiler room from exploding, escaping the restricted lab after [[spoiler: the SA-X begins destroying it]] and [[spoiler:dropping the entire space station onto [=SR388=].]]²* ExpositionFairy: Adam serves as this, giving Samus background information on the station along with her objectives and directions throughout the game.²* FacialHorror: Nightmare's [[NightmareFace already creepy face]] will [[ImMelting melt]] as it takes damage.²* FinalExamBoss: In a way, the [[spoiler:SA-X]] is one, for you have to use everything you have learned about your upgrades to defeat it, especially if you missed a lot of energy tanks.²* FishPerson: Many of the X-infected Space Pirates transform into fishlike versions of themselves when in water.²* FiveSecondForeshadowing: Compared to some of the examples below, at least. [[spoiler:The Metroid skins only show up after defeating Neo Ridley, and assuming you follow the story events without deviating to find missing upgrades, you'll encounter the metroid who shed them not very long after finding the first skin.]]²* {{Foreshadowing}}: There's lots, all over the game.²** [[spoiler:Even from the very beginning, the fact that the Federation has preserved Metroid [=DNA=] comes back in a major way when you discover the Restricted Lab.]]²** [[spoiler:Remember how in ''Metroid II,'' Samus was sent to [=SR388=] to dispatch all Metroids? Including some in deep nocturnal areas of the planet? Is it any coincidence that Sector 1 (SRX), a section designed to replicate the environment of [=SR388=] completely, is located right next to Sector 6 (NOC), a place meant for housing nocturnal creatures? What could be between them? A restricted laboratory, involving the breeding of Metroids, perhaps?]]²** [[spoiler:And again, following what was inside the Restricted Lab. You make your way back through Sector 1 in order to find a navigation room. Along the way, you pass some strange skins... They almost look like Metroid skins for the Larval, Alpha, and Gamma stages... And then during the countdown, you find a Zeta skin inside the hanger you're supposed to find your ship in, just in time for the newly-morphed Omega Metroid to show up.]]²** [[spoiler:The X are presented as mindless creatures, who invade an area, consume all of its organic material, and then proceed to hang around in its place. At first, the X attempt to get themselves absorbed to damage Samus, until they find it only heals her, and the X will start actively fleeing her. It happens again in Sector 6 (NOC), where the X had invaded Sector 5 (ARC), ''deliberately modified its own genetic makeup by hanging around in the cold,'' and attempted to infect Samus again, until the Cold-X realized she could absorb them once she got the Varia. All of this leads up to the reveal that the X are, in fact, intelligent creatures. They still want to infect the entire galaxy, but they can think and come up with plans.]]²** Related to the above, if you are unfortunate enough to get caught by the SA-X, you find that its preferred method for dispatching Samus is to freeze her with the Ice Beam, before shooting her with a Super Missile, which demonstrates that [[spoiler:The SA-X, and the X in general, are far from mindless if they can find the logical weakness of a being that is part-Metroid, rather than just swarm her.]]²** Sector 2 (TRO) has dimmer lighting than the other sectors when you first visit, and in the background, you can see roots growing on and clinging to the sector's systems. Later on, the power goes out completely and you have to find out what's causing it, only to find the reactor core choked by plant roots. Naturally, this means your job is to find the plant responsible and kill it.²** Samus also discovers Zeroes (larval Kihunters) in Sector 2 (TRO) upon her first visit. Towards the later part of her first visit they are seen in a pupa state, beginning their final development. Later in the game when Samus returns to the sector, the pupae have hatched and dangerous adult kihunters are present.²** Sector 5, on arrival, is rather still and calm. However, near the end of her first visit, shortly before the emergency in Sector 3, Samus will witness a horrific shape flying around in the background. While it’s shadowed out and impossible to see, it’s clearly extremely agitated. [[spoiler:Eventually, it breaks free and completely wrecks the sector, and Samus has to fight it.]]²** A Chozo statue, previously only found on Chozo-inhabited worlds like [[VideoGame/Metroid1 Ze]][[VideoGame/SuperMetroid bes]], [[VideoGame/MetroidPrime Tallon IV]], and [[VideoGame/MetroidIIReturnOfSamus SR388]], appears in Sector 1. The same Etecoons and Dachoras from ''Super'' appear in the Habitation Deck. ''Ridley'' appears frozen in cryogenic storage. The Federation have clearly been scouring Samus' previous exploits, searching for something. [[spoiler:Stumbling onto the Restricted Laboratory reveals just what they were looking for, and found.]]²* FridgeLogic: InUniverse, at the end of the game, Samus wonders [[spoiler:how her ship flew into the hangar after she defeated the Omega Metroid, since it doesn't have an autopilot.]] She gets an answer shortly after: [[spoiler:Etecoons and Dachoras helped pilot the ship.]]²* FromASingleCell:²** X-Parasites, if not absorbed, will simply reform into another body.²** Also, the Federation had preserved a Metroid cell culture from the Metroid Hatchling. A vaccine made from these Metroid cells was used to cure Samus when she was infected by an X in the game's intro. [[spoiler:And they also used it to grow new Metroids in a restricted laboratory hidden on the B.S.L. Station. Apparently for peaceful applications only, after what happened in ''Other M.'']]²* GameBreakingBug: The "TRO Trap" glitch, a result of both a design oversight and a player attempting to [[SequenceBreaking sequence break]] past Yakuza to fight Nettori by using a hard to execute Shinespark manuever to access the pathway to Nettori without the Space Jump. Thing is, the game is specifically programmed to [[{{Railroading}} make you fight bosses and gain items in the exact order the story demands]]. If you skip Yakuza, he won't return if you come back, meaning you lose the Space Jump. Making things worse is that Nettori won't give you its weapon either--you just get a message saying the level 1 doors are unlocked (a default error message). Both of these completely break the game and make it impossible to complete.²* GameplayAndStorySegregation: After you finish your first visit to Sector 3, Adam tells you that all of the available Data rooms are destroyed, sending Samus on a goose chase to use whatever Data Rooms are possibly available. Thing is, the Sector 2 Data Room remains intact for the entirety of the game, although you're cut off from accessing it again due to the SA-X blowing up the door to it--that is, until you beat Nettori, allowing you to backtrack all the way to the Data Room by the same route you used to escape from it, where you'll find that it's perfectly intact, but never used for the rest of the game. Adam did mention earlier that SA-X activity in the sector made it too big of a risk to go back to it, but it's not clear if he's referring to the destroyed entrance to it or the SA-X being there again (although it ''does'' show up there again before you fight Nettori).²* GenreMashup: Part Sci-Fi Action-Adventure, as is typical of the franchise, part ZombieApocalypse SurvivalHorror.²* GetBackHereBoss: Serris, to some extent, is this. You're stuck on four platforms over water, while you have a giant armored snake charging at lightning speed in and out of the water, only exposing its vulnerable head at brief moments. Don't bother trying to chase it, though, as you move at a slug's pace in the water, and Serris can easily run you down to take a few bites out of your life bar. The only effective way to fight it is to stay on the platforms and wait for it to appear. Or stay crouched in the water, just to the left of the rightmost spot where Serris comes into / out of the floor. It never hits you there, and you have a shot at its head when it comes out/goes in.²* GiantSpaceFleaFromNowhere: If you weren't paying attention, or don't know the significance of the [[spoiler:shed Metroid skins]] scattered about the place, then the [[spoiler:Omega Metroid boss]] might be a bit of a surprise.²* TheGoomba: Hornoads and Zombies on the main deck and Sector 1 are the most common enemies you face early on. The Zombies in particular are the most pathetic enemies in the game, [[MadeOfPlasticine dying in one hit from your default blaster]] and having a very short attack range that barely deals any damage.²* GrayingMorality: This game paints the Galactic Federation as becoming as [[TheUnfettered Unfettered]] as the Space Pirates, just with a multi system government's backing. Over the course of the game it's revealed [[spoiler:they have been weaponizing Metroids (for "peaceful applications," though Samus doesn't buy it since she knows how uncontrollable they can be) and that, based on the events on the B.S.L., the X Parasites (and SA-X specimen specifically) could also be potentially weaponized (which, again, sends Samus sideways that they would think that trying to cultivate such things wouldn't be a disaster waiting to happen). She destroys their research in order to prevent any of this from coming to pass but expects that she will be branded a traitor and the Federation will likely stay the course with their increasingly dangerous direction.]]²* GuideDangIt: After you beat Nightmare, you have to go to an underwater section of Sector 4 that you were cut off from before, and there's a spot where it's easy to get stuck due to the game only giving you an obtuse hint via some traveling enemies that [[spoiler:you're supposed to Power Bomb one of the [[SharkTunnel glass tubes]] to access a crucial area.]]²* HailfirePeaks: Every zone is "X meets EternalEngine," since you have various elemental environments taking place aboard a space station. Occasionally, you'll see several machines in the background. For Sector 3 in particular, the "X" is ShiftingSandLand for the upper rooms and LethalLavaLand for the lower rooms.²* HellIsThatNoise:²** The footsteps of the SA-X can become Paranoia Fuel ''really'' quickly.²** The buzzing of the Ki-Hunters will become paranoia fuel as well, especially during the sequences immediately before and after battling Yakuza / Gedo, when save points are few and far between, you're low on health, and they take several hits to kill with your wide beam.²** The strange howling noise that Nightmare makes, not helped by the fact that it ''also'' causes ParanoiaFuel during your first trip to Sector 5 when you see Nightmare's shadow flying through its containment tank every so often. Then on your second trip to Sector 5 the [[NothingIsScarier ''absence'' of the noise]] becomes the scariest thing about it as you see that Nightmare has broken out of its containment tank and is nowhere to be found.²* HeroicSacrifice: Samus almost attempts one [[spoiler:by detonating the self-destruct charges on BS-L to destroy the X-Parasites aboard; herself included. The AI Adam, however, informs her that doing that would be stupid, as it would not destroy the X on Planet [=SR388=], and only serve to destroy the X's greatest obstacle: Samus. A different plan is then created, which destroys all the X in both locations and allows Samus time enough to escape the station.]]²* HeroWithBadPublicity: The game ends with [[spoiler:Samus speculating she will become this, having destroyed a Galactic Federation space station, and the galaxy unaware as to why this seemingly terrorist act was necessary to stop the very dangerous threat of the X-Parasites.]]²* HighVoltageDeath: Electrified water is a hazard in Sector 4, AQA, that damages you over time. The player can accidentally kill themselves falling into it if they have low health. [[spoiler:You encounter this again during the second battle against the B.O.X.; as long as its in contact with the water flooding the area, it is electrified and you will take damage as long as you're in it.]]²* HopelessBossFight:²** Every SA-X encounter before the proper boss battle in the finale. You have to either evade or escape it.²** The final boss battle against [[spoiler:the Omega Metroid starts out like this as well, similar to the final battle with Mother Brain in ''VideoGame/SuperMetroid'', until a SA-X attempts to fight it and is reduced into its Core-X form, which Samus absorbs to power up and get the Ice Beam]].²* HitboxDissonance:²** There is one point in the game where the hitbox ''does not exist.'' If you willingly {{Troll}} the SA-X, there is one point where if you [[ stand on a particular wood,]] Samus will ''not take damage'' from the Ice Beam.²** A mild example with Nightmare: even when Nightmare's face is [[FacialHorror grotesquely deformed]] to half its size, the entire opening in Nightmare's armor can be shot to deal damage.²* HubLevel: The Main Deck of the station, as it contains elevators to each of the 6 sectors of B.S.L.²* ImMelting: When Nightmare's mask is removed, you can use missles and charge shots to mash its face into mush.²* ImplacableMan: The SA-X, especially in the beginning. Suited up with the Varia mode Chozo Power Armor, armed with Super Missiles, Power Bombs, the Screw Attack and the Ice Beam. The best you can do at first is just ''run''. You can fare a little bit better once you get the Ice Missiles, which slow it down, but you still can't actually ''hurt'' it until the final boss fight.²* InsectoidAliens: The "[[ Ki-Hunters]]" are insectile in appearance, having wings and a carapace. They also start off as caterpillar-like creatures that turn into pupae before turning into them.²* InvincibleBoogeymen: The SA-X of is a copy of Samus at her full strength, and as such can kill her in a few hits, freeze her in place and generally forces the player to run when its telltale footsteps show up.²* ItCanThink: The X are definitely intelligent; one of the X parasites mimics a scientist and attempts to melt down the boiler room in an attempt to destroy Samus and all the X on board, but preserve the rest of the species on [=SR388=]. The X also have shown that they possess enough intelligence to deliberately modify their genetic makeup in an attempt to try to freeze Samus. However, they are still ultimately driven by a mindless desire to consume everything.²* ItsTheOnlyWayToBeSure: [[spoiler:Adam persuades Samus that simply activating the self-destruct system on the B.S.L. station isn't enough, and ''its what the X want'', because it spares their brethren on the planet below. Instead, the AI implements a plan to change the orbit of the moon into a collision course with [=SR388=]. The blast would eradicate the X (indeed the impact and detonation destroys the planet).]]²* KaizoTrap: In the game's finale, [[ it is possible]] to defeat [[spoiler:the Omega Metroid]], then have the timer run out while [[spoiler:Samus's Gunship is docking.]]²* KillAndReplace: The X mainly infect lifeforms to absorb their DNA and memories while killing their host, which they can then perfectly replicate. This notably happened to the crew of the B.S.L. station and many other creatures, as a lot, if not most, of the enemies Samus faces in-game are mimics created by the X as opposed to being mutated outright.²* LegoGenetics:²** Samus is a human being genetically enhanced by Chozo blood and, by this game's intro, she's also part-Metroid.²** Technically the X count as well, due to their trait of retaining useful genetic information from past hosts and "improving" their current ones. It happens often in gameplay, where X from one defeated host will infest another and change its abilities. Horrifyingly, it also counts for the [[spoiler:SA-X, as when it mutates after being defeated the first time, it takes on traits from multiple species to try and kill Samus.]]²* {{Leitmotif}}:²** The [=SA-X=] has two of its own, for when you haven't alerted it yet and when you have and are running. It gets incorporated into its boss theme.²** Each boss has its own theme with the exception of the Beam Core-Xs encountered through the game, and Serris/Yakuza.²* LetXBeTheUnknown: The gelatinous X Parasites.²* LoneWolfBoss: The B.O.X. Security Robot initially isn't affiliated with the X parasites--it's just a security feature of the station gone awry. Samus unwittingly allows it to become infected by the X by damaging it enough to expose its organic neural core, which prompts a rematch with it later on.²* ManEatingPlant: Nettori's attackers. Land in one of them, and you will take damage until you can get out.²* MeaningfulName: Nettori, which shares the last four letters of its name with the first four of Torizo, the Chozo statues that attacked you in ''Super Metroid''. If you look closely at Nettori's main biomass, you may notice that [[ it looks exactly like a Chozo Statue being tangled up in plants]].²* MeatSackRobot: This game has [[GravityMaster Nightmare]] and the [[BrainInAJar B.O.X. security robot]]. The former is a [[PowerOfTheVoid black hole spewing]] robot with organic components (including a [[BodyHorror six-eyed melting face with green skin]]) while the later is a armored [[MechaMooks security bot]] that contains an organic brain as part of its AI's neural network. It's their living parts that allow them to be infected by the [[TheAssimilator X Parasites]].²* MercyMode: Accessible only in the Japanese version, in the Easy Mode, Samus is able to recover health and/or weaponry in greater quantities from the X, the bosses are more lenient in their attacks than in Normal Mode, and Samus takes less damage than usual.²* MesACrowd: The SA-X. [[spoiler:Since the X parasites multiply asexually, by the time you finally see a SA-X die, there are still ''ten other Samus copies running around the space station!'' [[GameplayAndStorySegregation Fortunately, you only meet one at a time.]]]]²* MinimalistRun: It's possible to beat the game with as few as 1% of the collectibles. A "0% run" is also possible by using the Speed Booster to [[SequenceBreaking exploit a design oversight in Sector 3]] (a missile tank is placed in a nearly unavoidable spot, and it got so infamous [[FanNickname the speedrunning community named it "Bob"]]), but it requires superhuman timing and precision and is ''extremely'' hard, but not impossible, to pull off without tool-assisting.²* MonochromaticEyes: The SA-X has blank white eyes, made more clear in the game's commercial.²* MonsterDelay: [[ThatOneBoss Nightmare]] is introduced as it streaks across the now wrecked sector of the ship. MissionControl tells Samus to ignore it for now, so she continues on. Later, the AI realizes how much damage it has caused and tells Samus to destroy it.²%%* MythologyGag: The artwork for the boss creature Arachnus (shown on the far right of the picture at the top of the page) portrays it with green fur on parts of its back which have scutes on the actual [[ in-game sprite.]] This subtly references how recurring ''Metroid'' villain Kraid was [[ originally portrayed]] with a furry green back in artwork for ''VideoGame/{{Metroid|1}}.''²* NamesToRunAwayFromReallyFast: Nightmare. Its name alone can inspire terror, and its appearance and power allows it to live up to its name.²* NewWorldTease: ²** You can get an early glimpse of the lower section of Sector 4, but you won't be getting anywhere due to some unkillable enemies blocking your path.²** After your first visit to Sector 3, you can visit Sector 5 early, but you won't be getting far in it due to the Level 3 Security Hatches and the fact that Samus can't survive the extremely low temperatures of most of it without the Varia Suit upgrade from Sector 6, and can't use her Speed Booster due to the cold literally knocking her off her feet from the damage it inflicts.²* NiceJobBreakingItHero:²** Samus' Metroid extermination campaign caused an explosion in the population of the X Parasites, which the Metroids had been designed to kill. Oops.²** Overriding the security doors allows the X to spread through sectors that they had previously been kept out of, but Adam always makes you aware of that fact before he sends you to unlock that level of door.²* NightmareFace: Here's a hint: read the first word.²* NintendoHard: [[SlidingScaleOfGameplayAndStoryIntegration When the A.I. warned Samus she was significantly weakened from the X-Parasite and the Fusion suit is far less protective than her normal suit, it's not kidding.]] Even fully upgraded, Samus takes the highest amounts of damage in this game than any other Metroid game by far. This means you have to be far more careful and strategic even with basic enemies, and going in Franchise/{{Rambo}} style like in other Metroid games is highly likely to get you killed. [[UpToEleven And that's not even going into the game's bosses,]] which there are more of than any 2D Metroid game to date.²* NostalgiaLevel: ²** Sector 1 was designed to be a perfect replica of the environment of the planet [=SR388=], where ''Metroid II'' takes place.²** [[spoiler:Some hidden parts of Sector 1 have a stunning resemblance to Ridley's Lair and Tourian, and they should, because you fight Ridley-X there.]]²** [[spoiler:The Secret Laboratory's escape sequence is very much like the ones in VideoGame/{{Metroid|1}} and VideoGame/{{Super Metroid}}]]²* OhCrap: ²** The Blue X actually manage to pull this off despite not having faces. When moving through Sector 6 to get the Varia Suit, they actively target Samus. After getting the suit, the first bunch that see her attempt to attack. The ones that aren't absorbed stop short and [[AttackAttackRetreatRetreat immediately try to fly away]] upon realizing they no longer harm her.²** Samus lets out one when the computer tells her [[spoiler: "one of the SA-X is on its way here".]]²---> '''Samus:''' ONE? ...Are you saying there's more than one [[spoiler: SA-X]]?²* OneHitPointWonder: Playing the game without collecting a single energy tank (as part of a MinimalistRun) quickly turns Samus into this. Most enemies take away huge amounts of health either by attack or contact, and many of them, including the boss fights, can [[OneHitKill kill her in one hit]].²* OneLetterName: The X Parasites are typically just called "X" just to shorten it. Even the Chozo called it that.²* OurZombiesAreDifferent: Everything the X infects dies, and the X are now able to clone what they absorb, creating zombie-like clones of dangerous enemies.²* PatchworkMap: The game takes place on a biological research vessel, and in order to support the needs of the wide variety of fauna and flora on board, each of the six sectors has its own artificially created environment, namely:²** Sector 1: UndergroundLevel²** Sector 2: JungleJapes²** Sector 3: LethalLavaLand²** Sector 4: UnderTheSea²** Sector 5: SlippySlideyIceWorld²** Sector 6: BlackoutBasement²* PerspectiveFlip: In Metroid II, Samus was tasked with eradicating all of the Metroids for the good of her species. In Metroid Fusion, the SA-X is attempting to wipe out all Metroids - including Samus - for the good of its species. This time, Samus has become a sort of Human-[[TitleDrop Metroid Fusion]]. ²** This works on a meta-level as well. The SA-X is mimicking Samus at her full power, in other words, how she more or less was at the end of ''Super Metroid''. In that game, ''you, the player'', were that nigh-invincible juggernaut. ''Fusion'' flips the script by giving you a depowered Samus that has to fight ''the very same nigh-invincible juggernaut'' that was once ''your'' PlayerCharacter. Naturally, you're virtually helpless against it for most of the game.²* PlugNPlayTechnology: The Fusion Suit is able to form new abilities just by absorbing "data" acquired from rooms and the DNA of the X parasites.²* PointOfNoReturn: Once you [[spoiler:go up to the main deck to alter the station's trajectory]], every possible route back to the various sectors is sealed off. Your only option left is to finish the game. Except in the EndgamePlus, which does not seal off the sectors until the final evacuation countdown.²* PosthumousCharacter: Adam Malkovich [[spoiler:is technically this, although ''Fusion'' puts an odd spin on it.]]²* PowerCopying: Samus gains abilities from the enemies she beats, though she does get some abilities from data rooms as well.²** Morph Ball from Arachnus.²** Charge Beam from the Beam Core-X.²** High Jump and Jump Ball from Zazabi.²** Speed Boost from Serris.²** Varia Suit from Big Core-X, which had actually stolen it from a data room.²** Wide Beam from another Beam Core-X.²** Space Jump from Yakuza.²** Plasma Beam from Nettori.²** Gravity Suit from Nightmare.²** Wave Beam from the Security Robot B.O.X. (Fight 2).²** Screw Attack from [[spoiler:Ridley-X, although this boss doesn't really use the attack unlike the others.]]²** [[EleventhHourSuperpower Ice Beam]] from [[spoiler:SA-X.]]²* PowerPincers: The X-mimicked Space Pirates have these, but they only use them to shoot lasers.²* PunyEarthlings: The X don't have much interest in mimicking the B.S.L. human crew, since there were no armed soldiers present at the time of its outbreak, and the scientists lack any offensive capabilities the parasitic organisms can make use of. However, as they realize Samus is a potential threat to their species on the planet, they try to change strategies, mimicking a deceased crew member [[TakingYouWithMe to destroy the station with bounty hunter abroad]]. Their knowledge wasn't perfect though, and their meddling with the main boiler tripped the EmergencyBroadcast, alerting Samus and Adam to their plot.²* RaisingTheSteaks: The X not only infects people, but also alien wildlife on the B.S.L..²* ReasonableAuthorityFigure: [[spoiler:Adam turns out to be one, and in the BittersweetEnding he offers hope that there may be others out there who understand why Samus destroyed the station.]]²* RecurringBoss: The Security Robot B.O.X. You fight it twice (more than any other boss in the game), and it changes its weaponry and tactics for the second fight.²* {{Revenge}}: After being chased by the SA-X the entire game, it's only fair that you get your revenge before [[spoiler:destroying the B.S.L..]]²* RunOrDie: This is the only advice Adam gives Samus regarding SA-X at the beginning, because it's equipped with all of Samus's weapons and abilities, including the Ice Beam which Samus is now weak against due to the Metroid Vaccine.²* SceneryGorn: Sector 5 (ARC), after [[spoiler:Nightmare runs loose, looks like a complete and total mess. Broken windows, smashed passages, new crudely made tunnels where there were none before, and rubble scattered all over the place.]]²* SenselessSacrifice: [[spoiler:Samus's plan to blow up the space station [[DefiedTrope would have been this, if Adam hadn't stopped her]] -- it wouldn't destroy the X on SR-388, and since Samus herself would be now dead, there'd be nothing left to stop them from invading the universe.]]²* SequenceBreaking: The game is [[DownplayedTrope mostly designed to make sure you can't do this]] due to its more linear, story driven nature, but there are a few exceptions, mostly reserved for minor situations:²** There is a [[EasterEgg secret conversation]] that can be seen by using a series of tricky Shinesparks in Sector 4. This ''almost'' allows you to skip the Diffusion Missiles; [[DevelopersForesight the developers thought to lock the door to the Main Deck]]. There's also a way to do it without the Shinespark--Samus can freeze the enemy blocking her path by using a very carefully timed and aimed Ice Missile launched from a diagonal angle. The secret message only acknowledges the Shinespark method though, as the second trick was a dev team oversight.²** It is possible to [[ exploit a glitch in the games memory]] that allows you to spawn right in the area before you fight the Omega Metroid upon from Sector 3. Unfortunately, this breaks the games event value scripting, so you won't get the Ice Beam back from the SA-X, and the Omega Metroid just stands there, impossible for you to kill.²** For 0% runs, the hardest sequence break to pull off in the entire game is [[ using the Shinespark in Sector 3 to bypass an organic barrier]] that can otherwise only be destroyed with Super Missiles and thus avoid the mandatory missile tank on the normal path. How hard is it? Its only possible by [[PauseScumming exploiting the games pausing to get precision control of Samus' movement for every one of 60 frames per second]], and while it can technically be done without tool assisting, the shinespark only lasts three seconds and the fastest it's mechanically possible to get into position for the necessary shinespark is 2.88 seconds (173 frames), so you need ''frame perfect timing'' and have just ''seven frames'' of error to pull the entire sequence off.²** Using quick manuevers, Wall Jumps and Shinesparks, numerous Energy, Missile and Power Bomb Tanks can be obtained without the otherwise required equipment. For example, the Shinespark can be used to bypass a very powerful organic barrier (that could otherwise only be destroyed with a Power Bomb) near the beginning of the game to access a Power Bomb tank--unfortunately, [[DevelopersForesight you can't use it until the game gives you the actual ability.]]²** When you first enter Sector 3, if you have enough energy tanks on hand, you can go through a superheated tunnel early on and survive before getting the Varia Suit, and if you find out how to get through the next room, your reward is an early missile upgrade and energy tank. This also doubles as a SelfImposedChallenge.²** Likewise, if you have enough Energy Tanks and go back to the lava room in Sector 1, Samus can Morph Ball below and grab the missile upgrade without the Gravity Suit.²* SelfImposedChallenge: Completing the game with a 0% MinimalistRun, which means avoiding all item pickups that aren't your scripted weapon and suit upgrades. Not only does this make the game even harder than before, doing this requires you to exploit an ''extremely'' hard SequenceBreak in Sector 3 to avoid the games lone mandatory Missile Tank.²* SequelHook: ''Fusion'' sure seemed to leave one hell of a sequel hook, what with [[spoiler:Samus having ''illegally blown up a Federation outpost'' and become something way other than human. Sure, Samus had her reasons, but all the implications in-game are that the Fed will be antagonistic with her now.]]²%%* SeriesContinuityError: A small retroactive one because of a retcon made by ''Videogame/MetroidSamusReturns'' (the 2017 remake of ''Videogame/Metroid2ReturnOfSamus''), but Samus states the Baby Metroid saved her life '''twice''' (during the ending of ''Videogame/SuperMetroid'', and its DNA saving her from the X-parasites). Thanks to ''Samus Returns'', the baby saved her three times.²* ShotgunsAreJustBetter: The Wide Beam and Plasma Beam have much larger spread, more damage, and the game would be near impossible without the Plasma Beam and actually impossible without the Wave Beam.²* ShoutOut: A couple to the ''Creator/StanleyKubrick'' film ''Film/TwoThousandOneASpaceOdyssey,'' as Adam bears a striking resemblance to HAL 9000. Also, the scene where Adam locks Samus inside the Sector 1 Navigation Room, is very similar to the famous scene from 2001 where HAL locks David Bowman out of the USS Discovery, even down to the dialogue.²** An unknown shapeshifting alien species steals its hosts' bodies and turns them into BodyHorror flesh monsters when exposed? Sounds like ''Film/{{The Thing|1982}}''.²* SomethingOnlyTheyWouldSay: How Samus discovers that [[spoiler:her AI CO, which she nicknamed Adam, after her old CO Adam Malkovich, actually ''is'' Adam Malkovich.]]²* SoundOfNoDamage: When you use a weapon that's too weak to damage an enemy (or something else, like using a beam on the missile hatch in the opening), you simply receive a small "beep".²* SpiritualAntithesis: The dev team intentionally designed ''Fusion'' to be the opposite of its predecessor, ''VideoGame/SuperMetroid''.²* SuicidalOverconfidence: The first few free floating X Parasites encountered will attempt to infect Samus again, not knowing she's now part Metroid and can eat them on contact. They learn to avoid her quickly, but it takes another lesson for the cold X Parasites after Samus regains the Varia suit.²* SurpriseCreepy: Metroid games are not unknown for having a dark, desolate atmosphere, and ''Fusion'' is no exception. What ''is'' unconventional for the series is the extent to which the game incorporates SurvivalHorror elements. Samus's SA-X clone will pursue her relentlessly, and until much later in the game, there is no hope of fighting it - the only available choices are to run and hide.²* {{Terraform}}: The B.S.L. space station is actually made from an asteroid moon that orbits planet SR-388. The Federation recreates all the typical environments found on the world within it, thereby making a safer place for the researchers to do their work in studying the exotic alien creatures.²* VictorGainsLosersPowers: Samus had all [[PowerCopying her abilities copied by the X.]] After killing X-infected bosses (which tend to be able to produce similar attacks), she can absorb the X-parasite to regain that power.²* VillainousRescue: [[spoiler:Samus has beaten SA-X, plotted the B.S.L. Station on a collision course with SR-388, and is on her way to her ship to escape. But when she gets to the docking bays, the place is a mess, her ship is missing, and there is a huge shed skin on the floor. Suddenly, an Omega Metroid comes in and screeches at Samus. With one claw swipe, Samus is knocked down to one health, immobilized and completely helpless against the monstrosity....until a SA-X jumps in and tries to take it down. The Metroid quickly kills the SA-X, but this allows Samus to absorb its Core-X, allowing her to kill the Metroid herself.]]²* WarmUpBoss: Archanus (from Metroid 2) makes a return as the first boss, but is significantly easier than its counterpart. He is also the only boss that takes damage from the normal, non-charged beam.²* WeaponizedOffspring: The game has enemies in the water zone that launch rotating eggs (maybe they're eggs...?) from their abdomens. As with other enemies appearing in the game, they do act different from their original template, the [[ Evirs]] from Maridia in ''VideoGame/SuperMetroid.''²* WhamLine: ²** "You know that the X reproduce by asexual division. Because of this mechanism, [[spoiler:there are now no fewer than 10 SA-X aboard the station.]]"²** [[spoiler:[[SomethingOnlyTheyWouldSay "Any objections, Lady?"]]]] Samus even gets an EyeTake in response.²* WhamShot:²** As Samus takes the main elevator down for the first time... and then something blasts through the wall, and a copy of Samus in her old power armor walks in, followed by a close-up on its BlankWhiteEyes.²** Accessing the [[spoiler:Restricted Laboratory]] after picking up the Wave Beam [[spoiler:and stumbling across the Metroid breeding tank.]]²* WhatTheHellHero: Late in the game, Adam will chastise Samus for bypassing Security Level 4 [[spoiler:and later, blowing up the restricted lab containing Metroids]].²* WholePlotReference: [[Film/TheThing1982 After investigating a remote outpost, a research team discovers a lifeform which assimilates, infects, and transforms and/or replaces its victims. Armed with this knowledge, one of the last survivors destroys the facility rather than allow the creatures to live and spread beyond it.]]²* WrongNameOutburst: Having mentally nicknamed her [=AI=] handler "Adam" after a former CO, Samus accidentally calls it by that name out loud during an argument [[spoiler:over whether to allow the Federation to capture and study the X Parasites. This leads to TheReveal that the [=AI=] really ''is'' Adam, courtesy of BrainUploading.]]²* ZombieApocalypse: The B.S.L. station succumbs to one courtesy of the X Parasites. It's a small taste of what could have happened to the entire galaxy had they got off the station. They kill whatever they infect and either pilot the bodies while applying BodyHorror or simply mimic them.²----


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