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GEKKO or IRVING's are an Optical-Neuro AI controlled unmanned bipedal battle drone series. They are also known as "Unmanned Gears". They have many varieties in design including a variant called Suicide GEKKO, whose main form of attack is blowing up via a nuclear demolition charge, taking out all around it. They appear as common enemies in the video games; Metal Gear Solid 4: Guns of the Patriots, and Metal Gear Rising: Revengeance.


In 2014, the Gekkos were mainly deployed by the PMC during Liquid Ocelot's Insurrection. First, they were deployed in the Middle East by the Praying Mantis PMC for heavy weaponry assistance against the town's rebelling miltia. Afterwards, they were sent to South American to assassinate Solid Snake, assist the Pieuvre Armement PMC to wipe out the remaining rebels, capture Doctor Naomi, and kill a recently appearing Cyborg Ninja, who was actually Raiden. Finally, a pair of Gekkos were deployed in an attempt assist the Raven Sword PMC in assassinating an escaping Solid Snake and Big Mama.

A large handful of Gekkos were stationed outside, around, and in Shadow Moses Island, wiping out any hostile personal, specifically the aforementioned Solid Snake. After intercepting the core of the base, Solid Snake was faced with several Suicide Gekkos to fend off while Otacon repaired Metal Gear REX. An army of Gekko units were stationed on the docks of Outer Haven, but were deactivated due to Otacon's/Sunny's FOXALIVE virus.

After the assassination of Liquid Ocelot, Gekkos were still mass produced despite being shut off after the Insurrection, going up to at least the year 2018. There, during the Desperado Incident, Raiden had to fight a now camouflaged Gekko unit, now with the surname Unmanned Gear (usually called UG).


Gekkos, being designed to be a compact Metal Gear, have pairs of artificially created muscle tissue covered legs that contains extreme strength, able to jump a very long distance with them, can crush a human with no effort, and are known for their powerful kicks that can flip a transport truck over. Gekkos can only see heat and visible light, as well as aural sensors so it can sense and hear movement.

Usual Gekkos have a beak mounted machine gun that fire deadly, armor piercing rounds as well as a retractable cable that can be controlled and acts like an appendage. These cables can pick up, examine, and restrain objects. Its domed head is nearly indestructible, but their semi organic legs are not, making these their weakness so that can be tipped over. Another main appearance in its arsenal is a family of hand grenades, but its more unconventional forms of weaponry are anti-tank missiles, M2 Browning machine guns, grenade discharging arrays, and ECM arrays.


  • Gekkos are sometimes nicknamed, The Lizards
  • There are three types of Gekkos; Regular Gekkos, Dwarf Gekkos, and Suicide Gekkos.

Metal Gear Villains

Metal Gear Solid 3: Snake Eater

Major Ocelot | Cobra Unit (The Boss | The Fury | The End |The Fear | The Pain) | Ivan Raidenovitch Raikov | Yevgeny Borisovitch Volgin | Shagohod

Metal Gear Solid: Portable Ops

FOX (Gene | Null | Cunningham | Elisa & Ursula | Python) | Zero

Metal Gear Solid: Peace Walker

Hot Coldman | Ramon Galvez Mena | Pupa | Chrysalis | Cocoon | Gear REX | Peace Walker | Metal Gear ZEKE

Metal Gear Solid V: Ground Zeroes

XOF (Skull Face) | Body-Snatchers |

Metal Gear Solid V: The Phantom Pain

Man on Fire | "Skulls" Parasite Unit | Skull Face

Metal Gear

Outer Heaven (Big Boss | Frank Jaeger | Shotmaker | Machinegun Kid | Bloody Brad | Fire Trooper | Dirty Duck) |

Metal Gear 2: Solid Snake

Zanzibar Land | (Black Ninja | Running Man | Red Blaster | Four Horsemen | Jungle Evil | Night Fright) | Metal Gear D |

Metal Gear Solid

Sons of Big Boss (Liquid Snake | Decoy Octopus | Revolver Ocelot | Psycho Mantis | Vulcan Raven | Sniper Wolf) | Gray Fox | Metal Gear REX

Metal Gear Solid 2: Sons of the Liberty

Solidus Snake | Sons of Liberty | Dead Cell (Fortune | Fatman | Vamp) | Gurlukovich Mercenaries | (Sergei Gurlukovich | Olga Gurlukovich)| Arsenal Gear | Metal Gear RAY | The Patriots | The Colonel

Metal Gear Solid 4: Guns of the Patriots

Liquid Ocelot | Vamp | Gekkos | Outer Heaven | Beauty and the Beast Unit (Screaming Mantis/Psycho Mantis | Crying Wolf | Raging Raven | Laughing Octopus) | Haven Troopers | Outer Haven

Metal Gear Rising: Revengeance

Blade Wolf | Desperado Enforcement LLC (Khamsin | Samuel Rodrigues | Mistral | Monsoon | Sundowner) | Metal Gear EXCELSUS | Steven Armstrong |

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