Metal Slug Wiki
Metal Slug Wiki

For the Boss version of Rootmars, see Rootmars.

The Rootmars Slug is a vehicle first introduced in Metal Slug 6.


At the end of Mission 2, Morden explains to Marco and his team what happened several weeks ago. After the events of Metal Slug 3, Rootmars slowly recovered itself from the depths of the ocean. As Rootmars lay dormant under the sea, the Martians were left defenseless against their natural predators, the Invaders, who took the opportunity to conquer both the Martians and Earth. With the help of the Rebel Army, the Martians rescued Rootmars by picking it up from under a bridge. Despite the Invader's attacking the rescue site dead on, Rootmars fully recovers and helps out the triple alliance.

If the player rides Rootmars in the Mission 4, then it, instead of Morden, will appear to rescue the players at the end of the final mission.


In Mission 4, near the end of the first area, below on the highway, the sound of Rootmars' cackles is heard. It dives down grabs the players, taking the role of a Slug (the upper road has Slug Flyer instead). It has a 360-degree 10mm Vulcan and an electric brainwave (usable via the Bomb/Cannon Button) that covers the entire screen, but doesn't offer protection to the players. To avoid damage during the ride, the players change the position of Rootmars' arm they are holding on to by moving up and down on the joystick.

For Rootmars' Vulcans, Player 1 controls the right Vulcan while Player 2 controls the left Vulcan. It also comes with a built-in Vulcan Fix which locks down the position of the controlled Vulcan when holding down the fire button.

Graphically, Rootmars has a dome-like helmet to protect its only weak spot, and it no longer has any stitches on its face.

In Other Games

Metal Slug Defense

Rootmars Slug appears as part of the Regular Army faction. It is the second toughest unit with 30,000 HP at level 30. It is also the most expensive unit to buy and deploy. Rootmars cost 500 medals and it needs 999 AP to be deployed in battle.

Metal Slug Attack

Rootmars returns as a "Pack Shop Unit" for the New Year's Celebration. Its base AP cost (on iron tier) is the highest to date, being 3000 AP (1000 AP on Platinum). Rootmars also has a counterattack move. Parts of the Rootmars Slug are now available from the Mars Shop.


  • Prior to Metal Slug Infinity, Rootmars was one of the two bosses that could be used as Slugs (the other being Black Hound, however, Black Hound is a mid boss, rather than a level-end boss)
  • It is unknown as to how Rootmars managed to recover from its injuries after its defeat in Metal Slug 3, as Rootmars can be seen on the credit's background severely disfigured, having lost an arm, a few teeth and part of its brain.
  • In Metal Slug Attack, Normal Rootmars reuses Rootmars Slug's sprite, albeit without the Vulcans nor the glass dome. As a result, Rootmars has two "horns" on his forehead.
Metal Slug 6
Heroes Marco Rossi | Tarma Roving | Eri Kasamoto | Fio Germi | Ralf Jones | Clark Still
NPCs Riviera von Wittenberg | Maryell von Wittenberg | POW | Rumi Aikawa | Madoka Aikawa | Hyakutaro Ichimonji | Donald Morden | Rebel Army | Chinese Soldier | Martians | Rootmars | Invaders | Announcer | Duke Koudou | Pupipi
Enemies Fanatics | Grenade Soldier | Bazooka Soldier | Shielded Soldier | Rebel Rifleman | Mortar | Gatling Soldier | Hunters | Mars People | Mini-UFO | Invader Squad | Winged Invader | Flying Parasite | Hunter Walker | Giant Hunter Walker | Space Mole Cricket | Crab-Tank | Vanguard | Smasher | Invader UFO | Flying Shelt | Flying Core | Flying Killer | Maggot
Enemy Vehicles Di-Cokka | T-2B Melty Honey | MV-280C | Nop-03 Sarubia | Girida-O | M-15A Bradley | 3-ton Utility Truck | Walking Locomotive | R-Shobu | MH-6S Masknell
Bosses Bull Drill | Iron Sentinel | Brain Robot | Elder Centipede | Invader King


Weapons Heavy Machine Gun | Rocket Launcher | Shotgun | Flame Shot | Enemy Chaser | Iron Lizard | Super Grenade | Drop Shot | Two Machine Guns | Zantetsu Sword | Grenade | Fire Bomb
Slugs SV-001 (Type-R) | Slug Flyer | Donkey Slug | Protogunner | Rootmars Slug | Slug Digger
Missions "African Winds" | "The Illusion of El Dorado" | "Asian Impact" | "Golden Bridge is Falling Down" | "Ancient Law"
Other Combat School | Weapon Stock | Rush Blaster System
Regular Army Vehicles, Slugs, and Artillery
Mechanized SV-001 | SV-001 Type-R | Slug Copter | Slug Flyer | Slug Sub | Astro Slug | Slug Gunner | Slugnoid | LV Armor | Walking Machine | Slug Mariner | Drill Slug | Bradley | Metal Claw | Forklift | Slug Mobile | Augensterm | Protogunner | Slug Digger | Slug Trolley | Slug Armor | Slug Gigant | Golden Slug | Slug Attacker | Slug Defender | Ball Slug/Drum Slug | Slug Square | TS-001 | Slug Rising/Slug Striker | Giant Copter/Copter Arms | Coil Tank | Ashley's Slug Flyer | Tail Slug | Patrol Slug | Pile Impact | "Phi's 3D Printer" | Slug Sniper
Animal SV-Camel | Elephant Slug | Ostrich Slug | Donkey Slug | Tiger Slug | Turtle Slug | Seahorse Slug | Felsteed
A.I. MS-Alice | MS-Heart | Phi
Transport Middle-Son 1986 | Borobune Slug | Motorcycle | Emergency Boat | Regular Army Helicopter | Landseek | PA33-21 Boat | RA-TTT
Other Middle-Son 1999 | SV-002 | Black Hound | Rootmars Slug | Regular Di-Cokka | Mr. Sluggles | S.A.M. Defender | 7000 Class Locomotive | Regular Iron Nokana
Wearable Parachute Drop | Scuba Gear | Jetpack | Drop Pack | Hoist | Metal Device | Doll | XA-01 Juggernaut
Stationary AA Machine Gun | Toy Union Cannon | Super Cannon