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Metal Slug Heart (MS-Heart, or Heart for short) is a new character introduced in Metal Slug Attack.

Character Summary

A new AI developed by the Regular Army, Heart is the operator of the TS-001 Tandem Slug. The Tandem Slug has a melee and ranged form; in its melee state, it charges at the front lines and bashes enemies with its massive fists. If this form takes too much damage, she detaches the melee components and turns into a ranged form, firing from both a rifle and cannon.

Her personality was based off MS-Alice's possible decodings, though this was before she gained self-awareness. As such, she is rather cold, calculating and does not understand the meaning of most words. Upon being hacked by White Baby, she gained self-awareness, but still retains her typical cold manner, albeit with an unusual attachment towards Tarma Roving.

While she appears much older than Alice, she is actually her younger "sister" since she was created after her.

Story

Extra Ops

Due to Alice being damaged during a Martian attack, Heart takes command of Alice's unmanned division and leads the attack against Amadeus Syndicate forces. Prior to the attack, Alice communicated with Heart and told her to ensure the safety of her tanks.

Heart encounters White Baby and the Iron Fortress. In the ensuing battle, she loses a significant amount of her forces (much to Tarma's disgust), but manages to surround the two Amadeus AI with her remaining forces. White Baby hacks her, though she states that it is ineffective as she relinquished command of her forces as soon as she started and she can buy more bodies with the coins she acquired. She states that it was too fast, before realizing that she shouldn't have a concept of time. White Baby's hack caused her to become self-aware, and when Tarma arrives, she stutters and orders him to leave as her plans were thrown off with his presence. Tarma tells her that she has to withdraw her forces if he leaves. Embarrassed, Heart places Tarma on her before speeding back to base with her forces.

Later on she's conversing with a newly constructed "Slug Puncher" when the two hear Tarma yelling for his life in the distance and they decide to rescue him, despite knowing it is a waste of time. The assailant, Mizuna, puts up a good fight against the two, but is stopped by Yoshino before the fight escalates. MS-Heart tries to use the opportunity to attack, but Tarma stops her from doing so. MS-Heart analyzes Yoshino again and finds her too powerful to deal with, so she places Tarma on her again before speeding away.

Alice later returns to take temporary command of the AI division and the group is sent on a mission against the Ptolemaic cult, fighting a Sky Jupiter Queen variant which destroys most of the SV-001s. Midori arrives and destroys the Sky Jupiter Queen with her new weapon, having considered Alice to be part of her family. Alice is put into shock and later appears to "disappear", but MS-Heart tells Midori that Alice was simply shocked by her words and that she went into power conservation mode to make the journey back. She then wonders to herself how Tarma would take care of an AI (namely, her).

Following the operation against the Ptolemaic Army, Alice returns for more maintenance, so Heart temporarily resumes command of the AI division. She learns that a Regular Army base has been captured by the Rebel Army, and makes plans to recapture the base and save the nearby town. She is paired with Victoria for the mission, with her mechanical falcon Wade providing her with valuable reconnaissance to allow her to plan an attack. Her plan goes awry as it ends up being a trap, but Wade is able to drive the Rebel Army away with its "Firebird" mode. When Victoria suggests to chase the fleeing Rebels, Heart refuses, prioritizing the safety of the town first.

MS-Heart later does a simulation run with Midori, showcasing numerous weak points, but also pointing out to her that most of these are only effective in theory and not in practice. As they're talking, First Baby inexplicably arrives, and Midori grabs her new Slug Copter to assist MS-Heart. The Slug Copter is severely damaged by First Baby, and Midori is in danger of being injured, but MS-Heart is able to catch the young mechanic. After First Baby hesitates for a brief moment, MS-Heart tells Midori to quickly shut off the circuit she came from to dispel her.

While idling about with MS-Alice, the two AI soon detect a swarm of enemy bees heading towards their position. They use mass-produced Tail Slugs to defend the base, but all of them are destroyed by the swarm despite their effectiveness. Knowing that the base will be overwhelmed, Heart has Alice assist in evacuating the base's personnel while she stalls the swarm for additional time.

She later performs a joint operation with Alice, having gone additional maintenance and the latter joining in through an imprint.

Gallery

Characters
Heroes Main Series Marco RossiTarma RovingEri KasamotoFio GermiTrevor SpaceyNadia CasselRalf JonesClark StillLeona Heidern
Spin-Offs Walter RyanTyra ElsonHeroGimletRed EyeTequila
Mobile Roberto NicolaNathalie NeoAlisa StewartHeltonTildeNikitaMatildaAmirWhipHeidern
Support Hyakutaro IchimonjiRumi AikawaMadoka AikawaUtanNavelSelinaIssenman TarouErisHyakumantaroPupipi
Villains Main Series Donald MordenAllen O'NeilAbul AbbasRootmarsDoctorAvatar of EvilInvader King
Spin-Offs Allen Jr.OgumaMacbaLt. WiredKananHilde Garn
Mobile Unknown AlienVictorPtolemaiosAnubis the ChainedNanook
Instructors Sophia GreenvilleMargaret SouthwoodRiviera von WittenbergMaryell von WittenbergCynthia HartnettAnne
NPC AnnouncerPOWsDuke KoudouSatiko SuzukiGerhardt City CiviliansScott Amundsen Jr.MinerGenie of LampOrcaPresidentSurvivorsFishmanLumberjackSailorChinese Soldier
Crossover KOF TeamBattle Cats
Unused Phil GeneMichiko NakajimaAngry Man • "Achilles" • "Tabomba"
Metal Slug Attack
Regular Army Associates MS-AliceAnna WieseMidori SchumannMelloRita LewinskyAmberNikitaReika BradfordLouiseGiseeMS-HeartAshleyRockyGrowlJephetVictoriaClaudiaKanaeHowellPhiElizabeth MarianiUndo
Metal Device Project PercheAmiMollyMenzelUlalaMaggieAvvioQuaithKaren
Rebel Army Associates RapidJuliaChloeIzabellaEddaGrowth & ClineNaomiAleshaJane Doe
ACE AbigailDionRomyKriemhildKatalina
"Frozen Brigade" BeatrizVickyDolores
Blaze Brigade GraziaLorettaNorah
Allen Platoon DestradeHuracanConnyNantesPadwah
Science Department VitaNavyNovaEmmaMillefieSylfieFluffyEight Eight
Arabian Army ShizukaAisha
Ptolemaic Army Rebellion DragunovYoshinoCarolineVeronicaSisiliaTowaSimonMiharuChunyanOwenShoLucyPhoebeJosetteMizunaMatildaLittle Lady BlackSvetlaHumphreyLithosYutongTatyanaCica
Cultists Mira D. GenesisMariaDamianAchettoSallyCaraOao-OneSorceress
Secret Sect Anastasia IVBelieversBeechamMelvinaAnastasia IZahara
Space Army Martians Professor "Aionion"Mars People NeoPercierClone AbbyClone BettyMars People RangersAriadnaGemini TwinsHalleBonnyClarioHarriotCode Marionette:UnPaulineLeoneClarisUnsignedDracoRaubtierLi Lin
Invaders OdetteAnnetteLydiaNowanSchwarz MetzeleiFedeln MetzeleiRillacleFrankeTelekoBloom MetzeleiOdileBersekGeweih MetzeleiPurple KingBarbelnBiene GoldenesSwordeistDrache GoldenesEis MonstrumAi Agate
Independent Army Amadeus Syndicate White BabyAlmaIron FortressValerian BearsFirst BabyType:Ant-Lion
Red Goblin Society Scotia AmundsenRed GoblinVatnJinAileenElenaLichtIchimaWendyYuki Tsuki HanaBushin Tenzan
Mummy Army PharaohCleopatraHemetArsinoeHatholSharifaRamalSekhatWepset
Vampires AswangAgaliaSharlGrace
"World Military Corp." KellyMayaMirror Mantis
Mirage Circus CocatrixBunny
Independents El DoradoElysionEstherTeresaMinervaYang DaoOttoIdo
Regular Army Vehicles, Slugs, and Artillery
Mechanized SV-001SV-001 Type-RSlug CopterSlug FlyerSlug SubAstro SlugSlug GunnerSlugnoidLV ArmorWalking MachineSlug MarinerDrill SlugBradleyMetal ClawForkliftSlug MobileAugenstermProtogunnerSlug DiggerSlug TrolleySlug ArmorSlug GigantGolden SlugSlug AttackerSlug DefenderBall Slug/Drum SlugSlug SquareTS-001Slug Rising/Slug StrikerGiant Copter/Copter ArmsCoil TankAshley's Slug FlyerTail SlugPatrol SlugPile Impact • "Phi's 3D Printer" • Slug SniperBlue Tiger
Animal SV-CamelElephant SlugOstrich SlugDonkey SlugTiger SlugTurtle SlugSeahorse SlugFelsteed
A.I. MS-AliceMS-HeartPhi
Transport Middle-Son 1986Borobune SlugMotorcycleEmergency BoatRegular Army HelicopterLandseekPA33-21 BoatRA-TTT
Other Middle-Son 1999SV-002Black HoundRootmars SlugRegular Di-CokkaMr. SlugglesS.A.M. Defender7000 Class LocomotiveRegular Iron Nokana
Wearable Parachute DropScuba GearJetpackDrop PackHoistMetal DeviceDollXA-01 Juggernaut
Stationary AA Machine GunToy Union CannonSuper Cannon
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