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The Slug Mariner is an underwater Regular Army Super Vehicle introduced in Metal Slug 3.

Information

The SVX-17M Slug Mariner is a single-crew minisub. While it is needed to go beneath the surface, this sub can be abandoned while underwater and re-entered.

The Slug Mariner is equipped with two 10mm caliber Vulcan cannons. However, water resistance decreases the range of the Vulcans, so it is loaded with incendiary ammunition that sink when shot so it would hit enemies below. It also fires powerful torpedoes that create a large shockwave upon impact. This is extremely useful against larger underwater enemies from Rebel submarines to hostile aquatic creatures.

In Other Games

Metal Slug X

The Slug Mariner appears in Metal Slug X in an early version of Mission 1's underwater route from Metal Slug 3.

Metal Slug Advance

Although the Slug Mariner is present in promotional art, it is unused in this game alongside scrapped underwater routes. Most of the necessary animations are present but with a brighter color scheme.

Metal Slug Attack

The Slug Mariner appears in the game's Treasure Hunt mode, with Marco piloting it. Aside from that, it isn't playable nor obtainable as a unit.

Jetpack Joyride

The Slug Mariner is present as a purchasable skin for the Wave Rider vehicle. Uniquely, its metallic tail fin flaps around like it's an actual fish.

The Slug Mariner moves at the surface of the water. The player submerges the sub by holding down the screen/button and emerges it by letting go causing the sub to jump in an arc. The Slug Mariner jumps higher depending how deep it was beforehand.

Trivia

  • The "4" seen on the side of this Slug and the yellow coloration are both a homage to Thunderbird 4 from the classic British TV series Thunderbirds.
Metal Slug 3
Heroes Marco RossiTarma RovingEri KasamotoFio Germi
NPCs POWRumi AikawaMadoka AikawaHyakutaro IchimonjiPresidentUtanScientistsSurvivorsDonald MordenAllen O'NeilRebel ArmyDivision 6MartiansRootmarsFishman
Enemies Rebel InfantryFanaticsGrenade SoldierBazooka SoldierShielded SoldierBikersRebel RiflemanMortarGatling SoldierMarine DiverJaponese InfantryMummiesMummy GeneratorDog MummyChariotZombiesTar ManSasquatchBatHuge LocustChowmein-CongaOhumein-CongaEnormous MorayJellyfishFlying KillerMan EaterMaggotGiant CaterpillarBig SnailSensor MineSupervisory CameraPatrol RobotMars PeopleMini-UFOMars SatelliteTiny UFORing Laser MechaHopper MechaMars MechaClones
Enemy Vehicles Di-CokkaM-15AT-2B Melty HoneyNop-03 SarubiaGirida-OLV ArmorParachuetruckM34 3-Ton TruckLandseekRebel VanR-ShobuMH-6S MasknellFlying TaraEaca-BTM-1 MissileHammer-YangU25UMini-Sub 88Japonese Tank SoldierNull Fighter
Bosses Huge HermitMonoeye UFOJupiter KingSol Dae RokkerRootmars
Mini-Bosses: MonoeyeHairbuster RibertsHi-DoRugnameFake RootmarsClone Incubator
Weapons Heavy Machine GunRocket LauncherShotgunFlame ShotEnemy ChaserLaser GunIron LizardSuper GrenadeDrop ShotGrenadeFire BombThunder CloudMobile SatelliteArmor PiercerAA Machine Gun
Slugs SV-001 (Metal Slug) (SV-001 Type-R) • SlugnoidSlug FlyerSlug MarinerBorobune SlugLV ArmorDrill SlugSlug CopterAstro SlugSV-CamelElephant SlugOstrich Slug
Missions A Couple's Love LandWandering at MidnightEyes Over the WavesTombstone of SandAll About Love
Other Fat IslandStorming the MothershipTransformationsEnvironmental ObjectsItems
Pachinko Sophia GreenvilleMargaret SouthwoodNavelSlug GunnerGolden Slug
Metal Slug 5
Heroes Marco RossiTarma RovingEri KasamotoFio Germi
NPCs POWRumi AikawaMadoka AikawaHyakutaro IchimonjiPtolemaic Army
Enemies Ptolemaic InfantryFanaticsGrenade SoldierBazooka SoldierShielded SoldierBikersSniperMortarNativesCommanderMasked SoldierWall DroneUnitsSensor MineBatMaggotJellyfishSquid
Enemy Vehicles Di-CokkaNop-03 SarubiaGirida-OM-15A BradleyJet Hammer-YangMini-Sub 88LandseekA.P.C.R-ShobuMH-6S MasknellFlying TaraEaca-BHover VehicleHover UnitPtolemaic SlugPtolemaic Saucer
Bosses Metal RearShooting RayScreamerSand MarineAvatar of Evil
Mini-Bosses: Black HoundGaia Elephant
Weapons Heavy Machine GunRocket LauncherShotgunEnemy ChaserIron LizardSuper GrenadeDrop ShotTwo Machine GunsGrenade
Slugs SV-001Slug FlyerSlug MarinerSlug GunnerSlug MobileAugensterm
Missions Heavy AfricanWindy DayIntrigueRun ThroughLast Ditch Resistance
Other TransformationsRA-TTT
Unused Flame ShotPtolemaiosStone TurtlePink ZombiesThe Jet • "Achilles" • "Tabomba"
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 SlugMega Drill SlugPile Impact • "Phi's 3D Printer" • Slug SniperBlue TigerAlice & Heart's TankGigantoidSV-002
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 1999Black HoundRootmars SlugRegular Di-CokkaMr. SlugglesS.A.M. DefenderWade7000 Class LocomotiveRegular Iron Nokana
Wearable Parachute DropScuba GearJetpackDrop PackHoistMetal DeviceDollXA-01 JuggernautUlala's Mech
Stationary AA Machine GunToy Union CannonSuper Cannon
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