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The Kraken is the final boss from Metal Slug 7/XX.


The Kraken is an ultimate weapon brought by the Future Rebels to help launch another Morden coup d'état. It is equipped with with super thick photon armor which even protects it from lava as well as various weaponry from the future, such as cylinder grenades, and an ultra huge cannon. It is also equipped with armed tentacles for recharging its energy with lava.


The Kraken is found in the final mission first exiting the Big Gate to save Morden. It is then seen residing near the edge of the volcano with various tentacles connected to it. The player stands on scrap material floating on lava inside the volcanic crater. The boss fight comes in two phases.

Phase one is fighting each tentacle one by one. The tentacles emerge from the lava and attempt to smash the player or rotate its segments to destroy the scrap metal. It can also fire electric balls or toss chunks of magma.

Once every tentacle is destroyed, the Kraken floats to the battle arena where phase two begins. The Kraken can:

  • Dive under the lava, creating waves of lava in the process, and produce sensor mines to destroy the scrap metal. Then it will submerge directly beneath the player and destroy the scrap metal it smashed through.
  • Fire an enormous cannon shell, that can bounce off the scrap metal, from its giant cannon.
  • Drop magma boulders from its very bottom.
  • Drop cylinder grenades called Future Grenades that bounce once before exploding.
  • Summon small projectiles called Satellite Ammo in a circle and toss them individually.

Pods occasionally linger around the arena backing up the Kraken; grenades and weapons appear after destroying them.

It is noted that the timer does not reset between phases.

The Kraken starts to sink into the lava once destroyed. The ending credits show the main cast, Morden, and a few Rebel soldiers huddling on top of the sinking Kraken before Rumi arrives to the rescue inside of the Regular Army Helicopter.

In Other Games

Metal Slug Defense

The Kraken first appeared in the Metal Slug Defense x Battle Cats collaboration event's cutscene  from the 1.34.0 update. Morden attempted to bring in the Kraken from the Big Gate but summoned the Battle Cats instead. The cats then drag Morden away from the Big Gate. 

It also appeared as deployable unit in the 1.41.1 update. It has a 999 AP cost to deploy and has 60,000 HP at Level 40.

Metal Slug Attack

The Kraken makes its reappearance in the "Black Future" Extra Ops with its AP greatly increased to 2,000 in silver (1,600 in platinum). Multiple variants also debut in this game. The Kraken and Kraken MK II are created by the Future Rebels while the Golden Kraken and Master Kraken are modifications by the present Rebels.


Kraken.gif Kraken: The original version.
Kraken MK II: A customized variant of the original Kraken. It has been modified to fire more cannon shells at the enemy. Appears in Metal Slug Attack.
Golden Kraken: Another variant of the Kraken, partially painted gold. Its satellite ammo has been turned gold, and fires the same amount of shells as its MK II variant but are much more devastating. Appears in Metal Slug Attack.
Master Kraken: A customized variant of the original Kraken. It lacks long ranged weaponry, instead firing a single shell at near point-blank range that shatters into smaller projectiles. It can also deploy a mechanical tentacle which can take large amounts of punishment, fires energy shots and uses its mass to crush enemies.


  • The Kraken is very similar in appearance to the Sunken Town bosses from the game In The Hunt.
  • Kraken's tentacle sprite is a recolored version of the Iron Death Worm sprite.
Metal Slug 7/Metal Slug XX
Heroes Marco RossiTarma RovingEri KasamotoFio GermiRalf JonesClark StillLeona Heidern*
NPCs Cynthia HartnettPOWRumi AikawaMadoka AikawaHyakutaro IchimonjiDonald MordenAllen O'NeilRebel ArmyFuture RebelsMartiansAnnouncer
Enemies FanaticsGrenade SoldierBazooka SoldierShielded SoldierBikersRebel RiflemanMortarGatling SoldierFuture RebelsHunters* • Patrol RobotMetal MoleLaser DronePodsRebel WalkerBatMaggotChariotFlying KillerMan EaterHuge IvyMars People* • Mini-UFO* • UFO*
Enemy Vehicles Di-CokkaBull ChanT-2B Melty HoneyMV-280BMV-280CNop-03 SarubiaGirida-O3-ton Utility TruckR-ShobuMH-6S MasknellEaca-BTurrets
Bosses Iron Death WormCrablopsFall ClimberThe UnionRebel GigantKraken
Mini-Bosses: Scrap TowerBig Gate
Weapons Heavy Machine GunRocket LauncherShotgunFlame ShotEnemy ChaserIron LizardSuper GrenadeDrop ShotTwo Machine GunsZantetsu SwordThunder ShotGrenadeFire BombArmor Piercer* • Mobile Satellite*
Slugs SV-001SlugnoidSlug Flyer† • Ostrich Slug* • Slug TrolleySlug ArmorSlug Gigant
Missions Scrap IslandCoal MineUnderground FortressThe WaterfallRuins BaseSnowy CountryThe Beginning is the End
Other Combat School (Dialogue) • Weapon StockRush Blaster SystemSuper Devil Mode* • "Scrap Fan"
† Exclusive to Metal Slug 7. * Exclusive to Metal Slug XX.
Metal Slug TetsuyukiHairbuster RibertsTani OhShoe & KarnIron NokanaHi-Do
Mini-Bosses: Mini-BataAllen O'Neil
Metal Slug 2/X The Keesi II / Iron Nokana MK II (X) • Aeshi NeroDragon NosukeBig ShieeHozmiRugname
Mini-Bosses: Mosque ArtilleryThe Keesi II (X) • Karn (X) • Allen O'NeilDai-Manji
Metal Slug 3 Huge HermitMonoeye UFOJupiter KingSol Dae RokkerRootmars
Mini-Bosses: Twin Ohumein-CongaMonoeyesHairbuster RibertsHi-DoRugnameFake RootmarsClone Incubator
Metal Slug 4 Brave GuerrierToschka DalanueThe IronBig JohnSea SatanAmadeus Mother Computer
Mini-Bosses: Mecha Allen O'Neil
Metal Slug 5 Metal RearShooting RayScreamerSand MarineAvatar of Evil
Mini-Bosses: Black HoundStone Turtle (unused) • Gaia ElephantPtolemaios (unused)
Metal Slug 6 Bull DrillIron SentinelBrain RobotElder CentipedeInvader King
Mini-Bosses: Invader ControllerKing's Cocoon
Metal Slug 7/XX Iron Death WormCrablopsDestroyed CrablopsFall ClimberThe UnionRebel GigantKraken
Mini-Bosses: Scrap TowerBig Gate
Metal Slug: 1st Mission Rebel VTOLRebel TrainMacbaRebel ZeppelinElectromagnetic CraneWeapons Port BossMetal Strider
Mini-Bosses: Facility ElevatorMacbaRebel Truck
Metal Slug: 2nd Mission Big BerthaTerrain CarrierRebel ReactorMacbaRebel SubmarineTani OhWiredRebel AirplaneMetal StriderRocket UFO
Mini-Bosses: Power GeneratorsRebel RocketHyakutaro
Metal Slug Advance FormorEmain MachaKaladgolgThe Keesi IIICabracan
Mini-Bosses: Allen Jr.
Metal Slug 3D ParachuetruckMosque ArtillerySpider-BotUnderground Cruise MissileMorden's BattleshipMorden's CastleAllen O'NeilLugusLieu
Metal Slug Attack Pharaoh's ArcPtolemaiosBall SlugGreat MotherMars GigantalosK-O3 Coupled Armored VehicleLand BlowfishCyclobsterSlug SquareZoni DolomaQuadro JumperDenturionD-GuFortmeranianRock MoleGiant CopterEt A OmnisVortexDigger BaseCrusty LegsArmored CrawlerQueen Big Snail7000 Class LocomotiveRiviere HyllMetal Fusioner No.223Drum SlugMars WolfSea DragonTetsujin SquadLa TorneGigantnoidDark GateKnight TankImpact CannonDive Assault Cannon Andrew
Mobile games Rocket Control RoomUnknown AlienHellfireSpiderbotCyclopsMega Laser TurretMars Battle UFOM-32 Water Carrier PlaneKouraiAlien Floating Structure