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The Bull Drill is an advanced construction site machine/digger, used by the Rebel Army. It is the first boss of Metal Slug 6.


The Bull Drill is a large mining vehicle developed by the Rebels and is designed to dig underground with ease. It has both a bulldozer blade and drill, hence its name. This excavator was apparently used to dig through the Invaders' underground base. [1]


The Bull Drill attacks by sending a ground-based missile forwards from underneath its bulldozer plate at the front. A Rebel soldier then pops out from said shovel and attacks with the cannon. It sometimes moves forward to ram the player or launch a boulder from the funnel.

Once half its health is gone, the plate will blow up alongside the residing Rebel, at which point the Bull Drill begins using its drill. It can extend the drill similar to the Drill Slug and try to hit the player, or lift it up to the ceiling and drill it, causing boulders to fall from the ceiling. In easy mode, however, it doesn't use its drill.

In Other Games

Metal Slug Defense

The Bull Drill appears as a purchasable unit in the 1.27.0 update where its official name was revealed. Here, the Rebel on its giant shovel has been removed. The Bull Drill's special attack is to drill the top edge of the screen and cause a boulder to fall. This attack can destroy all kinds of aircraft below its drill (except the Sol Dae Rokker and Hairbuster Riberts which have very high HP), making the Bull Drill one of the best choices to use as an anti-air unit.

Metal Slug Attack

The Bull Drill returns as a Super Rare unit. Its special has been upgraded to both drill into the ceiling and fire its drones at once. An updated variant of the Bull Drill, called the Sergeant Drill, takes over the original in prominence.


Bull Drill: The original mining vehicle created by the Rebel Army. First appeared in Metal Slug 6
Sergeant Drill: A jet-black version of the Bull Drill designed for Allen O'Neil. Appears in Metal Slug Attack.
Red Sergeant Drill: An upgrade of the Sergeant Drill, now painted red, and still piloted by Allen O'Neil. Can ram enemies by charging forward and shredding them into bits with its drill. Appears in Metal Slug Attack.

Golden Sergeant Drill: Another upgrade of the Sergeant Drill, now painted gold and durable enough to carry red-hot lava. It can fire molten rocks that can incinerate enemies upon impact with the ground. It's drill turns bright red from the intense heat.



  1. Metal Slug Attack in-game description.
Metal Slug 6
Heroes Marco RossiTarma RovingEri KasamotoFio GermiRalf JonesClark Still
NPCs Riviera von WittenbergMaryell von WittenbergPOWRumi AikawaMadoka AikawaHyakutaro IchimonjiDonald MordenRebel ArmyChinese SoldierMartiansRootmarsInvadersAnnouncerParkerPupipi
Enemies FanaticsGrenade SoldierBazooka SoldierShielded SoldierRebel RiflemanMortarGatling SoldierHuntersMars PeopleMini-UFOInvader InfantryWinged InvaderFlying ParasiteHunter WalkerGiant Hunter WalkerSpace Mole CricketCrab-TankVanguardSmasherInvader UFOFlying SheltFlying CoreFlying KillerMaggot
Enemy Vehicles Di-CokkaT-2B Melty HoneyMV-280CNop-03 SarubiaGirida-OM-15A Bradley3-ton Utility TruckWalking LocomotiveR-ShobuMH-6S Masknell
Bosses Bull DrillIron SentinelBrain RobotElder CentipedeInvader King
Mini-Bosses: Controller
Weapons Heavy Machine GunRocket LauncherShotgunFlame ShotEnemy ChaserIron LizardSuper GrenadeDrop ShotTwo Machine GunsZantetsu SwordGrenadeFire Bomb
Slugs SV-001 (Type-R) • Slug FlyerDonkey SlugProtogunnerRootmars SlugSlug Digger
Missions African WindsThe Illusion of El DoradoAsian ImpactGolden Bridge is Falling DownAncient Law
Other Combat SchoolWeapon StockRush Blaster System
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