Metal Slug Wiki

The Metal Device Project is a secret weapons project in development by the Regular Army.


The Metal Device Project is a weapons project in development by the Regular Army to create new soldiers for the battlefield. Sophia is the head of this project. Other known members working with the project are Molly and Maggie.

The "Metal Device" is a suit which is held by a metal frame and strengthened with synthetic muscle tissues that are equal to an archdemon's. This grants the wearer inhuman strength and durability, despite the lack of armor in several spots as shown with most of its wielders' illustrations.

As it is in its prototype stage, it connects to the nervous system of its wearer, meaning that only very few are capable of using it. The odds of compatibility are extremely low, typically one in a thousand potential candidates. The drawback of using the system is that the user will feel incredibly hungry, eating much more than what a normal human would typically eat.

Caroline, inspired by the Metal Device Project, created a suit similar to the ones in use by its members, though it is more armored, suitable for close and long range encounters, and provides protection against disabling attacks. Currently, only one suit is in production, operated by Josette. Whether it shares the same drawbacks as the P.F variant remains unknown, but it requires immense strength and stamina in order to be used.

Known Candidates

Perche Idle.png
Perche: Has a cheery personality and wants to be a hero. Carries a Vulcan cannon into battle, which she can further empower by calling in an ammunition pack.
Ami Idle.png
Ami: She lacks self-confidence and is rather shy. Carries a powerful version of the Thunder Shot into battle.
MSAUnit M.D.P.S-Mz 3.png
Menzel: She lost her right arm and a friend in combat. She uses her artificial arm which fires a powerful long-range ray blast.
Ulala Launcher Idle.png
Ulala: Her parents are part of the project. She typically uses a small rifle, but can call in a gigantic rocket launcher if needed.
Avvio Idle.png
Avvio: He's confident in his agility, ability to use a gun and his looks. He uses a gun that can shoot out Thunder Energy Bullets.
Quaith: She pilots a Tail Slug for combat.


  • Variants of the Metal Device Project's suit are alternated between members, as shown with Ami's frame, which is used by both Perche and Ulala while on special ops. Similarly, Ami uses Perche's frame when out on special ops.

Metal Slug Attack
Main Characters Marco RossiEri KasamotoTarma RovingFio GermiDonald MordenAllen O'NeilAbigailPtolemaiosDragunovYoshinoProfessorRed Goblin
Factions Regular ArmyRebel ArmyPtolemaic Army • Space Army (MartiansInvaders) • Independent (Amadeus SyndicateMummy Army)
Sub-Groups Metal Device ProjectBlaze BrigadeFrozen BrigadeACEMutantsBelieversMars People RangersMetzeleisVampiresYuki Tsuki HanaMirage CircusRed Goblin SocietyValerian BearsWorld Military Corp.
Other List of Metal Slug Attack Characters
Enemy Vehicles and Slugs
Regular Army Slug AttackerSlug DefenderSlug RisingTS-001Ball SlugGiant CopterSlug SquareTiger SlugCoil TankTail SlugAshley's Slug FlyerPatrol SlugPhi's 3D PrinterSlug Sniper
Rebel Army Iwa OhJulia's MV-280NaglfarDenturionAlesha's BikeArmed TiltrotorVicky's SarubiaDolores' SarubiaNantes' TankEmma's Recycle BoxLoretta's Blaze VortexMarineskFight CabFluffymeranianEight Eight
Ptolemaic Army D-001 TanbalTowa's MechGIP-03 BergeniaSnordonGlidronHumphrey's HoverboardHammer DX5005Sisilia's Seaside Machine
Space Army Mars GigantalosMars SweeperPurple KingLeone's ShoePauline's Mech
Independent Army El Dorado's Slug ArmorMinerva's OstrichMaya's ExcavatorKagura's Samurai MechSharifa's Golem
Mechanized/AI/Unmanned MS-AliceMS-HeartWadeWhite BabyFirst BabyIron FortressMachynaType:Ant-LionPhi
Extra Ops PtolemaiosSky Jupiter KingDoctor Type: AISea Dragon
Recapture Mega Drill SlugQueen Big SnailRiviere HyllGaia ElephantMetal Fusioner No.223Drum SlugMars WolfTetsujin SquadDark GateAccelerator CannonLife Reaper
Try Line Ball SlugGreat MotherK-O3 Coupled Armored VehicleLand BlowfishCyclobsterSlug SquareZoni DolomaQuadro JumperFortmeranianGiant CopterFlying HermitEt A OmnisElement GiantMini-BataDigger BaseScreamerAirborne DenturionMass Production Tail SlugSlug StrikerArms CopterFlying Hermit ACEEarth Monster VaikomWater God
Search & Destroy Gigantnoid
Task Force Rock MoleElder CentipedeRunaway Brain RobotMaster KrakenD-GuAstro SlugMonoeye GateCrusty LegsArmored CrawlerClone Incubator7000 Class LocomotiveFrozen VortexCoil TankJupiter TankGuardian of the CryptKing's CocoonGlidron+Fall Climber -Narutaki-Parasitic Giant Escargot
Ultimate Mission Golden Slug PhoenixPerfect Jupiter KingAvatar of EvilInvader KingCelestial Ruler Rokker
Books Metal Slug Attack Official Artbook
Regular Army P.F. SquadS.P.A.R.R.O.W.SIkari WarriorsMetal Device Project
Rebel Army Rebel InfantryArabian InfantryFuture RebelsACEBlaze Brigade • "Frozen Brigade"
Large Scale MartiansAmadeus SyndicatePtolemaic ArmyInvadersOguma Corporation
Small Scale Japonese Army (Division 6) • PiratesKOF TeamMummy ArmyRed Goblin SocietySecret SectVampires • "World Military Corp." • Yuki Tsuki Hana
Mixed Space ArmyEastAnother ForceDesert ArmyRevolution Army