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Sonic News Network
Sonic News Network

The Guardian Units of Nations,[1] also known as the Guardian Units of the Nations,[2] which can be abbreviated to GUN or G.U.N. (pronounced gun or gee-u-en), is a group that appears in the Sonic the Hedgehog series. It is a worldwide military and law enforcement organization. Run by a man only known as the Commander, G.U.N. seek to protect Sonic's world from all sorts of threats, including the Eggman Empire and the Black Arms.

G.U.N. has vast resources, including an army of soldiers and peacekeepers, fighter planes and other instruments of warfare. It operates under the sole discretion of the Commander, who has been known to use G.U.N.'s resources to bring down enemies. However, during the War to Take Back the Planet, G.U.N. was "put in their place" by the Eggman Empire, leaving its current status uncertain.[2]


Sonic Adventure 2

The GUN Military Truck, from Sonic Adventure 2: Battle.

FREEZE! What do you think you're doing?! Get that hedgehog!

Sigma-Alpha 2, Sonic Adventure 2

In Sonic Adventure 2 and its remake, Sonic Adventure 2: Battle, the G.U.N. organization was introduced. As the plot is revealed, it is shown that G.U.N. were responsible for the mistaken capture of Sonic the Hedgehog, the ending of Project Shadow, the invasion and subsequent deactivation of the Space Colony ARK, and the death of its inhabitants - including Maria Robotnik. G.U.N.'s role in this game is simply to contain the threat posed by Shadow the Hedgehog and Dr. Eggman. They attack Sonic and his friends, although many factors, such as G.U.N.'s mistaking of Sonic for Shadow, and Tails' attack on Prison Island, might have provoked this. This proved them to be have caused more harm than good in general, even if it was unintentional. In Rouge's first level, G.U.N. is seen holding a turtle at gunpoint for unknown reasons. The organization was never specifically called "GUN" by the characters, who instead referred to them as "the government" or "the military". The word "GUN" is only seen on G.U.N.'s technology and containers that are spread throughout the game.

Shadow the Hedgehog

GUN Soldiers, from Shadow the Hedgehog.

Attention. Emergency broadcast to all mobile units. Headquarters to all mobile units. All points bulletin. Be on the lookout for Shadow the Black Hedgehog. Wanted in connection with the terrorist attacks. Last seen in the vicinity of downtown Westopolis. Orders are, capture him. Dead or alive.

GUN Soldier, Shadow the Hedgehog

The role of G.U.N. in Shadow the Hedgehog's plot is to repel the Black Arms' invasion of earth by any means necessary - including the assistance from Sonic and his friends. During the opening FMV sequence, it is shown that earth is being overrun, with G.U.N.'s forces almost helpless - hence the temporary alliance. It is also strongly hinted during the game and FMV sequences that G.U.N.'s mission is the investigation, and possible destruction, of Shadow himself, though this depends on the player's moral choices within the game. Their attempts at doing this are caused by the Commander of G.U.N. and his personal hatred of Shadow, although in two endings he realizes Shadow isn't evil and it was simply a misunderstanding. If the player attacks and empties the health bar of a GUN Soldier while with a hero character, leaving them badly injured, the hero will tell Shadow to stop it.

G.U.N.'s role in Sonic Adventure 2 was also expanded in Shadow the Hedgehog, as one of the levels takes Shadow and Maria through the colony during the G.U.N. incursion and shows Shadow fighting off one of their weapons after they try to harm Maria.

Sonic the Hedgehog (2006)

Shadow in a G.U.N. Buggy, from Sonic the Hedgehog (2006).

Transmission from HQ. There's an SOS coming from Dr. Eggman's Base. Our last communication with our agent was 26 hours ago. We expect an immediate rescue, Shadow The Hedgehog.

— GUN HQ, Sonic the Hedgehog (2006)

G.U.N. has a small role in Sonic the Hedgehog (2006). Shadow was requisitioned by G.U.N. to find Rouge, as she had presumably been kidnapped by Dr. Eggman and was being held at his base in White Acropolis. After Rouge is rescued and the Scepter of Darkness is retrieved, G.U.N. appears even less. At this point, they are only occasionally contacted by Shadow and Rouge for various purposes, such as for Town Missions.

Sonic Riders: Zero Gravity

The International Security Organization, G.U.N., has begun to investigate the event.

— News Reporter, Sonic Riders: Zero Gravity

In Sonic Riders: Zero Gravity, G.U.N. is mentioned in the opening cutscene on the radio, where the newscast says that G.U.N. is investigating the MeteoTech out-of-control-robot problem.

Sonic Rush

The Huge Crisis map featuring a G.U.N. battleship, from Sonic Rush.

Huge Crisis in Sonic Rush is a stage centered on infiltrating several of G.U.N.'s battleships at sea. The enemies are the Gun Hunter, Bomb Hawk, and Rhino Cannon. It is unknown why they attacked Sonic and Blaze.

Sonic Generations

As City Escape reappears in console/PC version of Sonic Generations, many different G.U.N. robots, and the GUN Military Truck chase scene, re-appear for both the Modern and Classic perspectives. For Classic Sonic, the truck's abilities remain mostly unchanged from Sonic Adventure 2, but Modern Sonic's iteration received several upgrades, such as three controllable saw-blades and rocket boosters for flight.

Since Radical Highway reappears in the Nintendo 3DS version of the game, many different G.U.N. robots and the Blue Eagles re-appear for both the Modern and Classic perspectives, albeit with a slightly different design than Sonic Adventure 2.

Sonic Forces

In Sonic Forces, G.U.N. was not mentioned, though it was stated by Dr. Eggman that the organization opposed the expansion of the Eggman Empire at the start of the War to Take Back the Planet. However, it was brought down by the doctor using his new power, allowing him to take over 99% Sonic's world easily.[2]

Other game appearances

Sonic Rivals

Among the 150 collectible cards in Sonic Rivals, there are seven are G.U.N.-related pictures. These cards are "The Commander", "Big Foot", "Flying Dog", "Hot Shot", "Gun Wing", "Hornet-6", and "Shield Hunter".

Sonic Chronicles: The Dark Brotherhood

A G.U.N Unit, from Sonic Chronicles: The Dark Brotherhood.

G.U.N. is involved in the events of Sonic Chronicles: The Dark Brotherhood by trying help Sonic and friends find Knuckles. They are first seen helping in destroying the Egg Carrier, later appear fighting off the Nocturnus Clan, and have a headquarters in Central City as well as taking patrol in Mystic Ruins. They are investigating Knuckles' disappearance and hired Team Chaotix to learn more about the Marauders. Just before Sonic and co. traveled to the Twilight Cage, they gave Rouge instructions to gather any Marauder technology for the scientists to research and possibly re-engineer.



Main article: Commander

G.U.N.'s Commander is an efficient officer, never backing down in the face of danger. In his debut, he commands his forces against the Black Arms, serving as the counterpart to Dr. Eggman, Black Doom, and Shadow the Hedgehog. He also harbors a deep hatred towards the enigmatic hedgehog, this being so great in Shadow the Hedgehog that he sent G.U.N. forces after him even though the world largely considered Shadow a hero.

Commander claims he saw Black Doom with Gerald Robotnik releasing Shadow. When the government came to shut down the Space Colony ARK and killed Maria Robotnik, he blamed Shadow for her death, as well as the deaths of all other ARK inhabitants, when, ironically, it was the G.U.N. army that killed most of them. It is unknown why he was on the ARK, but it can be assumed that he was related to one of the researchers connected to Project Shadow, since he said his family was killed along with Maria. It is unknown why he himself was evacuated instead of killed.

In some storylines, he controls the Diablon robot, G.U.N.'s most powerful creation despite it being unfinished. In three of the endings of the games, he teams up with Sonic to fight Shadow. It is unknown whether he controls it personally or via remote, as both are implied through dialogue/lack thereof.

Once he speaks to Shadow before Cosmic Fall, he realizes that Shadow is not evil at all and regrets attempting to kill him. After Shadow defeats Devil Doom and destroys the Black Comet, the President states how ironic it was that people treated Gerald like he was evil, and he ended up saving them all in the end. The Commander and the President realize they were wrong about Gerald's intentions and that he was truly a good-hearted person. They decide they will help create peace for the world in honor of Gerald. In Expert Mode, it is revealed that the Commander had become a grandfather one week before the events of the game.

G.U.N. Troops

Concept artwork of GUN Soldiers, from Shadow the Hedgehog.

G.U.N.'s forces consist of both human soldiers and a large variety of robots that are just as complicated and powerful as those of Dr. Eggman. The G.U.N. robots are powered by "Chaos Drives," power cores invented by Gerald Robotnik after researching the Chaos Emeralds.[3]

GUN Soldiers

Foot troops of G.U.N. armed with combat knives or a variety of firearms. They first appeared in a cutscene in Sonic Adventure 2, and reappeared as common enemies in Shadow the Hedgehog. They mostly wear black and blue, but they also have green, tan, black and brown camouflage clothes for various terrains they fight on, and commonly are armed with pistols, sub-machine guns, assault rifles and over-shoulder explosives. Some also are equipped with riot shields to protect them from frontal attacks.


Beetle series

These are saucer-shaped one-eyed floating robots that appear in Sonic Adventure 2, Sonic X, Shadow the Hedgehog, and Sonic Generations. They function as obstacles that block your path forward or serve as tiny attack platforms. There are several different types of beetles, which either hover with a fan and cannot move or feature a turbine to fly around with. The Beetles in Shadow the Hedgehog have the number "05" on them.

Image Name Appears in Description
SonicGenerations 2015-02-03 13-24-41-211.png Mono Beetle Sonic Adventure 2, Shadow the Hedgehog, Sonic Generations Basic unarmed Beetle that simply floats in place.
GUN Beetle.png Gun Beetle Sonic Adventure 2, Sonic X, Shadow the Hedgehog, Sonic Generations A Beetle armed with a projectile gun.
GUPE8P-546.png Rocket Beetle Shadow the Hedgehog A Beetle armed with 4-Shot RPG rocket launcher. Iron Jungle is the only stage to involve the Rocket Beetles, featuring about 17 of them.
Bomb Beetle.png Bomb Beetle Sonic Adventure 2 A Beetle that constantly drops bombs.
Spark Beetle Sonic Adventure 2, Shadow the Hedgehog A Beetle with an electrical shield that it switches the discharge on and off.
GUN Spring.jpg Spring Beetle Sonic Adventure 2 A Beetle with a Spring on top of it.
SA2GoldBeetle.png Gold Beetle Sonic Adventure 2, Sonic X, Shadow the Hedgehog, Sonic Generations (3DS) A special Beetle that can teleport in Sonic Adventure 2 after appearing for a short amount of time. If destroyed, it awards 1000 points to the player.

In Sonic X, the Gold Beetles have a number "01" on them.

In Shadow the Hedgehog, these Gold Beetles can move slightly faster than the Gun Wings and require two hits to defeat instead of one. They can't teleport and aren't as gold as previous versions. Due to gameplay mechanics, Shadow will be awarded 1,000 Dark points upon their destruction.

Gun Wing.png Gun Wing Sonic Adventure 2, Shadow the Hedgehog Like a G.U.N. Beetle, except it has wings that lets it move around.
Bomb Wing.png Bomb Wing Sonic Adventure 2 A Wing that generally flies in a circle while dropping bombs.

Hunter series

Hunters are tall white humanoid robots that have the number "02" on them. According to an eyecatcher information card from Sonic X, a Hunter is 3.5 metres (11 ft. 11 in.) tall, 2.5 metres (8 ft. 8 in.) wide, and weighs 2.5 tonnes (2.75 short tons).[4]

Image Name Appears in Description
Sonic Generations 2014-11-3-22-31-26-30.png Gun Hunter Sonic Adventure 2, Sonic Rush, Sonic Generations Hunter with some kind of projectile weapon. Some fire blue projectiles that trap enemies.
Laser GUN.jpg Laser Hunter Sonic Adventure 2, Sonic Rush, Sonic X Hunter with a powerful laser gun. In Sonic X their laser beams are green when fired.
Gun hunter2.jpg Shield Hunter Sonic Adventure 2, Sonic X Hunter equipped with a large powerful shield. It can use either a gun or a laser. Can only be destroyed at their feet when they lower their shield to open fire.

Rhino series

Rhinos are blocky, tank-like robots with the number "03" on them. They usually attack by attempting to ram into their target.

Image Name Appears in Description
Rhino Jet Sonic Adventure 2 Basic Rhino. It simply rolls around, trying to hit enemies.
Rhino Cannon Sonic Adventure 2, Sonic X Rhino armed with a cannon.
Rhino Rush transparent.png Rhino Cannon (Sonic Rush) Sonic Rush Rhino with a jet-propelled Spring on top.
GUN Spikes.jpg Rhino Spike Sonic Adventure 2 Rhino with spikes on top, protecting it from air attacks.
Rhino Metal Sonic Adventure 2 Rhino covered in thick armor, can be destroyed with Sonic's Magic Hands ability.

Hawk series

Hawks are large, floating robots with the number "04" on them. They have two cylinder-shaped engines that they use to hover and maneuver in the air.

Image Name Appears in Description
GUN Hawk1.jpg Gun Hawk Sonic Adventure 2, Sonic X Hawk that fires several projectiles once it spots an enemy.
Laser Hawk.png Laser Hawk Sonic Adventure 2 Hawk armed with a laser gun.
Egg hawk.jpg Sky Hawk Sonic Adventure 2 Hawks that fly around in the sky, only to swoop down to crush enemies.
Bomb Hawk transparent.png Bomb Hawk Sonic Rush Hawk that hovers in the air while dropping bombs.

Hornet series

Hornets are flying, eye-like robots with several appendages that hold bombs. When they spot an enemy, they fire the bombs toward it. They have the number "05" on them.

Image Name Appears in Description
Hornet-3 Sonic Adventure 2 Hornet armed with three bombs.
Hornet -6.jpg Hornet-6 Sonic Adventure 2 Hornet armed with six bombs.
SA2 GUN Hornet-9.jpg Hornet-9 Sonic Adventure 2 Hornet armed with nine bombs.
Phoenix Sonic Adventure 2 A red Hornet-3 that moves slightly faster and has faster bombs.
Laser Hornet Sonic Adventure 2 Hornet armed with three laser guns.

Artificial Chaos

Artificial Chaos are robotic versions of Chaos from Sonic Adventure that exist on the Space Colony ARK. They are all prototypes of the Ultimate Life Form and were created by Gerald Robotnik.

Image Name Appears in Description
Artificial Chaos2.jpg Artificial Chaos P-1 Sonic Adventure 2 A standing Artificial Chaos that fires lasers from its eyes.
Artificial Chaos1.JPG Artificial Chaos P-100 Sonic Adventure 2 A floating Artificial Chaos that splits into hundreds of small Cells, which attack enemies.
GUPE8P-422.png Cell Sonic Adventure 2, Shadow the Hedgehog A tiny cell of an Artificial Chaos P-100.
Artificial Chaos1.JPG Float Type Sonic Adventure 2, Shadow the Hedgehog An Artificial Chaos that floats in the air as an orb of water, these appear identical to Artificial Chaos P-100. All Artificial Chaos in Shadow The Hedgehog are of this type, although they cannot shoot lasers.
Artificial Chaos2.jpg Guard Type Sonic Adventure 2 A standing Artificial Chaos that uses its long arms to stab enemies, these appear identical to Artificial Chaos P-1. Some can retract their heads into their bodies, protecting them from damage.


Image Name Appears in Description
GUNTrooper.png GUN Trooper Shadow the Hedgehog A green robot with red markings, it can only use the Semi-Auto Rifle.
GUPE8P-777.png Giga Trooper Shadow the Hedgehog Similar to the GUN Trooper, except it is heavily armored, camouflage-colored, and can use any weapon.



Image Name Appears in Description
Blue eagle.jpg Blue Eagle Sonic Adventure 2 Bomber plane that appears in several stages of Sonic Adventure 2. It drops bomb showers, and appears to be based on the Sukhoi Su-34 Fullback. It appears to have a feet form like the gun hunter robots, rather than wheels for landing gear.
G.U.N. fighter jet Sonic Chronicles: The Dark Brotherhood Multiple fighter jets were seen attacking Dr. Eggman's new Egg Carrier in the opening scene of Sonic Chronicles. They are mainly white with a red nose-cone and has a cockpit with tinted glass. They have a single stabilizer at the back in white, yellow, and red with a large flat section at the top of it. It can fire off laser blasts and has four missiles, separated in twos, underneath each wing.


Image Name Appears in Description
Sonic2app 2016-08-06 23-10-40-138.png G.U.N. transport helicopter Sonic Adventure 2 A large helicopter that appears in the opening cutscene of the Hero story. It bears a striking resemblance to the Russian Mil Mi-24 Hind. The helicopter has the identification code "Sigma-Alpha 2". According to writing on the helicopter, it may be that either the machine or it's model was named "LONGBOY622_15A", or short "LONGBOY".
G.U.N. assault helicopter Shadow the Hedgehog A military helicopter that flies around the city stages, it can be destroyed or held onto.

Ground vehicles

Image Name Appears in Description
GUNMilitaryTruckModel.png GUN Military Truck Sonic Adventure 2, Sonic Generations A huge truck that chases Sonic in the City Escape stage, crushing anything in its way, though it eventually crashes into a brick overpass. In Sonic Generations, the truck that chases Modern Sonic features three large saw blades and a pair of rocket boosters.
Military police vehicle Sonic Adventure 2 Appears in Mission Street.
S06Buggy.jpg G.U.N. Buggy Shadow the Hedgehog A basic military jeep that can be used by Shadow.
HMMWV.png HMMWV Shadow the Hedgehog A large, strong Armored Personnel Carrier. It can be used by Shadow, and is usually found behind the Secret Door.
Armored transport vehicle Shadow the Hedgehog A huge van-looking vehicle seen in GUN Fortress. It cannot be used, and is just a destroyable object.
GUNMotorcycle.png GUN Motorcycle Shadow the Hedgehog A military motorcycle that can be found and ridden by Shadow in Lethal Highway.
Tank Shadow the Hedgehog A green tank that can be seen in the cutscene where Black Doom threatens the earth.


Image Name Appears in Description
Vlcsnap-2011-05-26-20h23m47s50.png Aircraft carrier Sonic Adventure 2 A huge aircraft carrier seen outside Prison Island. Blue Eagle planes are kept on them.
Warship Shadow the Hedgehog An equally huge ship sporting large cannons. Two can be seen outside the GUN Fortress.


Image Name Appears in Description
Air Fleet and the Eclipse Cannon.png G.U.N. battleship Shadow the Hedgehog Huge, heavily armed airships that can be found in the skies over earth. The Air Fleet stage in Shadow the Hedgehog takes place on one of these. It bears resemblance to Dr. Eggman's Wing Fortress from Sonic the Hedgehog 2
Mobile rocket Sonic Adventure, Sonic Adventure 2, Shadow the Hedgehog A rocket that is held onto and used to travel to high areas. In Shadow the Hedgehog, it comes with a parachute for controlled descent.
GUNturret.png GUN turret Shadow the Hedgehog A powerful Heavy Machine Gun turret that, if destroyed, Shadow can pick up and use. Dr. Eggman considers it a piece of junk.
Gun Lift Shadow the Hedgehog A type of GUN Turret that runs on a rail in Lost Impact. It is usually used for transport, but can reveal the hidden weapon in case of emergency.

Big Foot

The Big Foot walkers are large bipedal walkers that can hover in the air. In Sonic Adventure 2 and Shadow the Hedgehog, they are manned by a G.U.N. pilot. However, in Sonic X, they appear to be completely robotic or remote-controlled, along with being somewhat weaker.

The F-6t Big Foot, from Sonic Adventure 2.

The F-6t is the first Big Foot featured in the Sonic the Hedgehog series. It is teal, yellow, and red. It attacks by flying above Sonic and firing its Gatling gun, occasionally landing to fire its missiles. It appears as one of the first bosses in Sonic Adventure 2 and its Sonic X adaption, both of which where it was fought and destroyed by Sonic. According to Sonic X, this Big Foot is 3.4 metres (11 ft. 11 in.) tall, 4.8 metres (16 ft. 3 in.) wide, and weighs 9.2 tonnes (10.14 short tons).[5]
A newer version of the Big Foot that is colored teal, yellow, and red. It appears in Shadow the Hedgehog and usually guards the later levels of the game. They are the second strongest standard enemy belonging to G.U.N.. They carry Gatling Guns, which Shadow can pick up after he has defeated them. This Big Foot is much stronger than the Sonic Adventure 2 variant, and takes many more Homing Attacks to defeat.
The Type B is similar to the F-6, except it is camouflage-colored and is armed with two quad missile launchers on its shoulders. It appears in Shadow the Hedgehog as fairly uncommon enemy, although it is the strongest unit belonging to G.U.N.. It never uses its Gatling gun, but fires homing missiles very quickly. After being destroyed, it drops a lock-on missile launcher.


Nearly identical to the F-6t Big Foot, except for a particle beam cannon built into the torso. The main difference between the two is that Big Foot makes three overhead machine-gun passes before landing and firing missiles, while the Hot Shot only passes overhead once. It appears only in Sonic Adventure 2 and its Sonic X adaption, where it was fought and defeated by Shadow. According to Sonic X, the Hot Shot is 3.4 metres tall, 4.8 metres wide, and weighs 9.6 tonnes.[6]
A flying mech that is identical in equipment to the Hot Shot, with the exception of not needing to land, as it lacks legs. It appears in Sonic Adventure 2, where it traps Rouge on Prison Island. According to Sonic X, it is 3.6 metres in both height and width, and weighs 5.4 tonnes.[7]

A Jump Vehicle, from Shadow the Hedgehog.

A small walker that can jump to very high heights. It appears in Shadow the Hedgehog, where Shadow can use it for himself. There are two variants, one featuring two machine gun turrets, and one that doesn't. The armed version cannot jump as high as its un-armed counterpart, but it gains the ability to hover.
Appears in Shadow the Hedgehog in one of Shadow's flashbacks. The Heavy Dog is a large, disc-like machine that tries to stop Shadow and Maria from escaping the Space Colony ARK. It is armed with several homing missile launchers all around its body, and it can drop floating mines that will explode after some time. Its most dangerous armament is its Particle Beam Cannon, a weapon that fires blue energy waves in all directions. Interestingly, blueprints for the Heavy Dog can be seen on the walls of room it is fought in. Presumably, the Heavy Dog was built aboard the ARK, corresponding with what Shadow said about "weapons of mass destruction" being built there.

The Blue Falcon, from Shadow the Hedgehog.

Appearing in Shadow the Hedgehog, the Blue Falcon is a different version of the HD1 Heavy Dog, exchanging the bomb-launching capabilities for enhanced speed and strength. It is assigned to guard the Eclipse Cannon from invaders. The Blue Falcon is armed with the same missile launchers and Particle Beam Cannon as the Heavy Dog, but features the ability to drop powerful bombs instead of floating mines.
  • The Blue Falcon is said to be named after Captain Falcon's car in the F-Zero series, possibly since Sega helped develop F-Zero GX and F-Zero AX.
The mech U78-X/D Diablon appears in Shadow the Hedgehog as one of the possible final bosses. It is a humanoid robot, fully equipped with a powerful energy shield, jet-pack, strong laser gun, and the Antimatter Cannon, which, after some necessary charging, creates an explosion of energy that causes destruction across a large radius. Diablon is controlled by G.U.N.'s Commander (whether remotely or internally is unknown, as both ways are implied by the game), and is accompanied by Sonic when fought by Shadow. Its serial number and name are displayed on its wrists. It can be confronted in the GUN Fortress, Final Haunt, and Black Comet stages.


Sonic Adventure 2

Weapon Description
Gun Fires large yellow projectiles.
Laser Fires a thick green laser beam.
Gum Laser Fires blue projectiles that stick to enemies, trapping them.
Bomb Spherical bomb that explodes after a few seconds. It is either dropped by Beetles or fired by Rhinos.
Minigun Fast-firing machine-gun used by the Big Foot, Hot Shot, and Flying Dog. Can be assumed to be the same as the Gatling Gun from Shadow the Hedgehog.
Missile launcher Homing missile launcher with four missiles, also used by the three mechs. Can be assumed to be the same as the 4-Shot RPG from Shadow the Hedgehog.
Particle beam cannon Energy weapon used by the Hot Shot and Flying Dog. It takes time to charge, but the blue energy shot fired creates a large explosion, while also featuring some homing capabilities.

Shadow the Hedgehog

Shadow the Hedgehog revealed a much larger and more realistic arsenal of weapons for G.U.N. (and Shadow) to use.

Weapon Description
Knife Combat knife used by G.U.N. troopers on the Space Colony ARK in The Doom.
G.U.N. shield Large bulletproof riot shield used by G.U.N. troopers. Shadow can not use it.
Pistol Semiautomatic pistol resembling a USP Tactical, used by GUN troopers.
Sub-Machine Gun Small, MP5-resembling sub-machine gun used by most G.U.N. troopers and small robots.
Assault Rifle Large assault rifle, resembling both a SIG SG551 and a G3, and is used by G.U.N. troopers and robots.
Gatling Gun Fast-shooting powerful minigun used by the Big Foot.
Heavy Machine Gun Long, powerful machine-gun used as stationary cannons and robot weapons. It resembles the Browning M2 .50 Caliber Machine Gun.
Bazooka Shoots an explosive rocket straight forward, used by G.U.N. troopers and robots.
Tank Cannon A large green cannon, found behind the locked key doors in Iron Jungle and Prison Island, and a cage in the GUN Fortress-based multiplayer map. Its shots are almost as powerful as a Chaos Blast, though no enemies use this weapon.
Grenade Launcher Shoots explosive grenades that arch downward. Seems to be based on the Milkor MGL, but without a stock or holo-scope.
RPG Bazooka-like weapon that uses Lock-on technology to fire homing missiles.
4-Shot RPG Missile launcher used in the Big Foot, Heavy Dog, and Blue Falcon mechs. Also used as hand-held by numerous Beetles, mechs, and soldiers. It can lock onto 4 separate targets, then fires a rocket at each in quick succession. Similar to the M202 FLASH (Grim Reaper).
8-Shot RPG Larger missile launcher that is used by the Big Foot and Giga Troopers. It can lock onto 8 separate targets, then fires a rocket at each in quick succession.
Laser Rifle Fires green lasers that bounce off any surfaces. It is only found in Expert Mode in Black Comet.
Particle beam cannon Fires multiple blue energy waves in all directions after charging up, and is built into the Heavy Dog and Blue Falcon. It cannot be used by Shadow.
Anti-Matter Cannon Creates a massive energy explosion around the Diablon, which is the only vehicle seen equipped with it. Shadow can not use it.


GUN Fortress

Main article: GUN Fortress

G.U.N.'s headquarters appears in Shadow the Hedgehog and is considered the most secure shelter on earth. The President is taken there for safety when the Black Arms attack Central City. The underground fortress is heavily guarded by three mother computers, armed security cameras, and an immeasurable number of G.U.N. troops and mechs. It is located in a mountain near the sea, as seen on the platform where the goal ring is located. It serves as one of the five final stages of the game.

Prison Island

Main article: Prison Island

A large jungle island used as a prison and research base by G.U.N. In Sonic Adventure 2, Dr. Eggman first came there to find G.U.N.'s secret weapon, which turned out to be Shadow the Hedgehog. Some time later, Sonic the Hedgehog was captured by GUN due to a misunderstanding and imprisoned deep inside the island, but he was quickly rescued by Miles "Tails" Prower and Amy Rose. At the same time Shadow, Eggman and Rouge the Bat attacked the island in order to take G.U.N.'s Chaos Emeralds. They succeeded and planted several explosives on the island, blowing it up as everyone escaped.

However, Shadow the Hedgehog revealed that the explosives had only destroyed G.U.N.'s main base and spilled toxic waste into the rivers. G.U.N. still has some overgrown paths and prison cells in the jungle, and they use them to hold captured Black Arms soldiers. In the game, Charmy Bee goes to the island to look for some hidden data disks on behalf of Vector the Crocodile, and the player can choose to help him find them.

In other media


Sonic X

G.U.N.'s logo, from Sonic X.

In the anime series Sonic X and its comic series published by Archie Comics, G.U.N. is a military branch. They extracted Eggman's technology and with a few tweaks, they managed to create their own robots. They also took Eggman's Egg Fort and turned it into their attack vehicle, the GUN Fort V3.

Books and comics

Archie Comics

G.U.N.'s logo, from the Archie Comics.

In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, G.U.N., its full name being Guardian Units of the Nation, was the sole military resource meant to project the United Federation. Most of their technology was based upon the early 21st Century earth tech, with some Overlander. G.U.N. was created long after the Gene Bombs when the various remaining human city-states began to communicate and organize. As strange new life began to populate Mobius, it was up to G.U.N. to protect the last of humanity. As such, they were a grim and ruthless organization - sometimes warranted, other times not. Under the leadership of Abraham Tower though, G.U.N.'s ruthlessness and self-importance was greatly diminished and its questionable operations were removed. As G.U.N. began to emerge in the outside world, they would ally themselves with the Kingdom of Acorn/Republic of Acorn in the ongoing war against Dr. Eggman and the Eggman Empire who threatened G.U.N.'s territories.

Following the Super Genesis Wave, G.U.N.'s history became virtually to their game counterpart. In this new continuity, they would aid in the Shattered World Crisis and prevent a second invasion of the Black Arms.



G.U.N.'s logo, from Sonic the Hedgehog 2 (film).

In the Sonic the Hedgehog film series produced by Paramount Pictures and its spin-offs, GUN (short for Guardian Units of Nations) was formed after the events of first film as a global taskforce devoted to protecting the Earth from extraterrestrial treats, though they also work against the threats posed by Dr. Robotnik. Its commander is Commander Walters, and one of its members is agent Randall Handel.

Deeming Sonic the Hedgehog a threat, GUN enacted Operation: Catfish, which led to Sonic and most of his associates' capture. However, after their captives were freed and Robotnik's return was made apparent to them, GUN tried to apprehend Robotnik, only to be outclassed by his new power. After Robotnik was defeated, GUN worked on clearing up his mess, during which they discovered a clue to Project Shadow.


  • The full name of the organization was a source of confusion. In the 2012 re-release of Sonic Adventure 2, the helicopter at the start of the Hero story features a clearer texture, making it possible to read "Guardian United Nation" on the side. The official strategy guide of Sonic Adventure 2 in Japan introduced it as "Guardian Units of Nation". The former is considered an error made by the port team, and the latter is thought to be a small translation error involving singular and plural.
  • The origin of G.U.N.'s name probably stems from the Japanese word for "army," which is "gun" or "guntai," and then words were made to fit with the acronym.
  • Though the name is pronounced as "Gun" in most games they are in, the name was pronounced "G-U-N" in Sonic the Hedgehog (2006) and Sonic Riders: Zero Gravity.
  • G.U.N. is based on the United States government, though they have been seen using Russian Aircraft in Sonic Adventure 2.
  • G.U.N. may be based on the United Nations, since both are factions that fight for the peace of the world. It being an implied multinational military might also be a reference to NATO and the military of the USA, both of whom have been criticized for their hypocritical method of using military might to maintain world peace.
    • This reflects the irony of G.U.N.'s name as "Guardian Units of Nations" sounds heroic compared to "GUN", which is obviously a dangerous weapon.
    • Additionally, the background colors of various G.U.N. logos in Shadow the Hedgehog appear to use the same shade of blue used on the flag of the United Nations, along with featuring similar olive branches.
  • An unused voice clip in Shadow the Hedgehog has Dr. Eggman stating to Shadow that G.U.N. tried to copy his designs, though what he is exactly referring to is unclear.