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The Death Egg Robot[1] (デスエッグロボ Desueggurobo?), also known as the Death Egg (デスエッグ[2] Desu Eggu?), Robot Eggman[3] (ロボ・エッグマン[3] Robo Egguman?, lit. "Robo Eggman"), and the Eggman Mech,[4] is an object that appears in the Sonic the Hedgehog series. It is a giant battle mech built by Dr. Eggman in his own image which has been used by the doctor on numerous occasions to battle Sonic the Hedgehog and his allies.



The first version of the Death Egg Robot, from Sonic the Hedgehog 2.

The first depiction of the original Death Egg Robot model showed it as a humanoid mech whose head and torso came together in an indistinguishable egg shape. Its head and torso bore a great resemblance to Dr. Eggman during his younger days, right down to his mustache and attire, but with a metallic gray scalp and a small antennas on the sides of its head. It also had yellow shoulders with red arrow marks on them, along with red and yellow arms with three spikes for fingers, a gray jetpack on the back, and thighs made of two gray spheres each. It also had large and armored red feet with kneecaps.

Modern depictions of the first Death Egg Robot model depict it as much taller than initially shown. While still similar to the original, its modern depiction has a sturdier chassis, what that appears to be wheels installed in the feet, round shoulders, and a black and gray jetpack consisting of two rectangular cylinders. The antennas seen on the head of the original are also absent and the forearms appear to have been redesigned to be much bulkier to allow for the rotary spikes on their ends. Its lower chassis is also smaller and its legs are shorter.

The Death Egg Robot that appeared onboard the E.G.G. Station Zone was similar to the first model's initial depiction. Possessing a round torso with a dome-shaped head that come together in an egg-like shape, it had a red upper torso, a black lower chassis, and a gray head with a peach face resembling Eggman's, compete with scope-like eyes, a long and pointy red nose, and brown face plating for a mustache. It also had two pairs of antennae bolted to the sides of its head, yellow shoulders with black covering and a white Eggman Empire symbol, gray arms with rotary red wrists that had yellow and black hazard stripes on the front, and four blades for fingers. It also had a gray jet pack on its back, a spherical gray joint for a thigh each, and bulky red lower legs with wide red feet.

The mass-produced version of the Death Egg Robot, from Sonic Forces.

The mass-produced Death Egg Robots that first appeared during the Phantom Ruby incident are designed after the original Death Egg Robot, but several times larger, being over three times the size of an apartment building. They have egg-shaped bodies with a narrow pelvis each, stubby and heavily armored legs, thin arms with cone-like forearms, thick gauntlets, cap-shaped shoulders attached to bars rather than sockets, three straight spikes for fingers and jet packs on their backs. They also have triangular markings on their chest (which are similar to those on Eggman's original jacket) and dome-shaped heads. Unlike the original robot though, the faces of these Death Egg Robots are almost blank, with the exception of a single red eye and a red field for a mouth. They are also completely gray and black with glowing red outlines.

The Death Egg Robot that appeared at the Eggman Empire Fortress came in two forms. In its first form, the Death Egg Robot was a massive gray mech with red lights and glowing red outlines all over its body. It had a small dome-shaped head that could open up like an eye. It also had three spike-like appendages on top of it similar to a crown, a rounded body with a red energy core in the middle, four tentacles with three-clawed hands at the end of each one on its back, large shoulder pads with silver on its upper and lower arms and large fist with four fingers on both arms, and a very serpent-like lower body. In its second form, it was a three-headed core module mech with a large head in the middle, two smaller heads on the sides and smaller cord-like appendages below it, each with a single eye. It looked very much like the Nega-Wisp Armor, the only differences being that it was white and that it had eight long tentacles, six of which ended with three small three-clawed hands, and two of which ended with large eight-clawed hands that could open up.

Abilities and traits

The first Death Egg Robot model was a massive powerhouse, but was incredibly slow. Its thick chassis made it highly resilient to attacks and it possessed a jetpack that made it capable of flight. It could also fire its hands as projectiles and guide them back to its arms to reattach them and deploy small bombs. Modern depictions also indicate that the first Death Egg Robot had telescopic arms, an articulated waist that let it rotate its torso 360 degrees, enough durability to be nearly impervious to attacks (even bombs could only stun it temporarily), and enough strength to jump and smash metal like paper despite its massive frame.

The Death Egg Robot that appeared onboard the E.G.G. Station Zone had all the original model's abilities and more. In addition to being significantly faster and more durable than the original, this Death Egg Robot could generate an electrical field around itself that made it invulnerable. It could also fire lasers and energy blasts.

The mass-produced Death Egg Robot that first appeared during the Phantom Ruby incident are incredibly strong and tough thanks to their size; one unit can easily topple buildings single-handed and withstand a barrage of shots from a number of laser artillery turrets being fired on it from various angles by Resistance forces.[5] They can also fire powerful lasers from their eyes.

The Death Egg Robot that appeared at the Eggman Empire Fortress had a variety of abilities. Thanks to the Phantom Ruby being incorporated into it, it was able to create thousands of Phantom Copies at once. In terms of physical abilities, it was extremely tough, so much that no regular tool could damage it, and it had enough strength to throw giant metallic boulders with ease and strike with enough force to smash metal platforms. In its first form, it was as well capable of flight, firing optic lasers, shooting homing missiles from its fingertips, and emit harmful shockwaves into any surface. In its core module form, the Death Egg Robot was more agile while retaining its flight capabilities. In addition, it could create Null Space-like dimensions, emit lasers from the tip of its tentacles, unleash energy waves with but a slam with its tentacles, and fire its claws as spinning projectiles.


Sonic the Hedgehog 2

The Death Egg Robot's first fight against Sonic, from Sonic the Hedgehog 2.

In Sonic the Hedgehog 2, and its various ports and remasters, after being chased deep into his Death Egg by Sonic the Hedgehog after the hedgehog's victory over Mecha Sonic, Dr. Robotnik entered his final trump card - the Death Egg Robot (known as Death Egg in this game) - and took his stand against Sonic. After a heated battle, Sonic defeated Eggman and his Death Egg Robot one-on-one, and the Death Egg began to explode.[6]

Sonic the Hedgehog 4: Episode I

The Death Egg Robot having its rematch with Sonic, from Sonic the Hedgehog 4: Episode I.

In Sonic the Hedgehog 4: Episode I, Dr. Eggman used an updated version of the Death Egg Robot to battle Sonic the Hedgehog after the hero had chased him to his E.G.G. Station. Although this Death Egg Robot proved a more formidable foe than last time, Sonic still managed to defeat Eggman and this mech suit, causing the entire E.G.G. Station to explode.

Sonic Forces

In Sonic Forces, the Death Egg Robot became a mass-produced staple in Dr. Eggman's Eggman Army as the doctor launched another campaign to conquer the world. These Death Egg Robots served as sentinels.[5]

Shortly before the War to Take Back the Planet, husks of mass-produced Death Egg Robots could be found at the end of Lost Valley. As the subsequent war between the Resistance and the Eggman Empire escalated, the mass-produced Death Egg Robots would be deployed to attack the City on a number of occasions. These Death Egg Robots' attacks and their encounters with opposing Resistance forces were witnessed by Classic Sonic as he ventured through Ghost Town, the Avatar while they helped with the evacuation of Park Avenue, and Sonic when he came to Sunset Heights to find Shadow. When Sonic and the Avatar later came to Red Gate Bridge, a mass-produced Death Egg Robot tried to attack the pair, destroying the bridge that they were trying to cross. Surviving the surprise attack, Sonic and the Avatar landed on a ledge, face to face with the Death Egg Robot. Reacting quickly, the Avatar swung Sonic and themselves away from the robot using their grappling hook as it punched the ledge. Sonic and the Avatar then swung around the robot while it fired its eye laser. Once the duo was in front of the robot's eye, Sonic and the Avatar stopped up and charged their respective Spin Attacks before shooting through the Death Egg Robot's head, destroying it.

The Death Egg Robot at the Eggman Empire Fortress, from Sonic Forces.

Dr. Eggman also made an alien-looking Death Egg Robot as his final trump card against the Resistance during the final battle at the Eggman Empire Fortress. This robot had the Phantom Ruby incorporated into it, allowing the gem to stay safe while the Resistance targeted what turned out to be a decoy. Shortly after the decoy was destroyed, this Death Egg Robot made its appearance. Eggman viewed the machine, as well as himself, as the ultimate successor to Infinite, retaining all his abilities. Overclocking the Phantom Ruby with his Death Egg Robot, Eggman conjured up thousands of Phantom Copies of Shadow, Metal Sonic, Zavok, Chaos, and Infinite. With this massive army and his remaining fleet, Eggman planned to wipe out the Resistance and perfect his rule over the world. Despite the odds however, Sonic, Classic Sonic, and the Avatar completely destroyed the Death Egg Robot, wiping out the Phantom Copies and returning peace to the world.

Other game appearances

Sonic the Hedgehog (Didj)

In Sonic the Hedgehog (Didj), the robot is referred to as the Eggman Mech.[4] In this game, Sonic the Hedgehog met Dr. Eggman as he was piloting the Eggman Mech in Space Egg Zone. A battle soon after ensued, with Sonic emerging victorious, destroying the Eggman Mech and claiming the Chaos Emerald.

Team Sonic Racing

A Death Egg Robot, from Team Sonic Racing.

In Team Sonic Racing, a mass-produced Death Egg Robot from the Phantom Ruby incident appears along the Frozen Junkyard race track. Here, the Death Egg Robot is embedded in a huge glacier. Every now and then however, it will shoots two laser beams from its eyes down on the road below. These lasers will then move along two of out six orange-glowing lines that are burned into the road; if the player touches these lasers, they will take damage and spin out temporarily. Should the player make it past these lasers, the players will jump into the loop contained within the Death Egg Robot. After passing through this loop, the player will then reach the finish line.

Besides Frozen Junkyard, a mass-produced Death Egg Robot from the Phantom Ruby incident also appears on the Dark Arsenal race track. This Death Egg Robot appears in the center of the track and is under construction. Under its arms are two Bumper-based trampolines that the player can use to take a shortcut. However, the player has to watch out for the burners that occasionally ignite under Death Egg Robot's arms, which can knock the racers into the abyss.

In other media

Books and comics

Sonic the Hedgehog (manga)

In the Sonic the Hedgehog manga published by Shogakukan, the Death Egg Robot (referred to as only the Death Egg) was a mech that Dr. Eggman once used to battle Sonic onboard his Death Egg station. However, it was easily destroyed by Sonic. Eggman later tried using a rebuilt version of it against Sonic (but forgot to add legs to it), only for Sonic to destroy and vandalize it.

Sonic the Comic

Robotnik's deadly battle armour, from Sonic the Comic #27. Art by Mike Hadley and John M. Burns.

In the Sonic the Comic comic series published by Fleetway Editions, the Death Egg Robot (referred to as Robotnik's deadly battle armour) was once used by Dr. Ivo Robotnik to fight Sonic the Hedgehog aboard the Death Egg. However, the armour was destroyed.

Archie Comics

The Egg Destroyer Battlesuit, from Sonic the Hedgehog #289.

In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Death Egg Robot is referred to as the Egg Destroyer Battlesuit. During Operation: Clean Sweep, it was used by Dr. Eggman to battle Sonic. However, it got destroyed once Sonic transformed into Super Sonic.

After the Super Genesis Wave re-wrote history, the Egg Destroyer Battlesuit's past is now virtually identical to its game counterpart's.

IDW Publishing

Main article: Death Egg Robot (IDW)

The Death Egg Robot, from Sonic the Hedgehog #1.

In the Sonic the Hedgehog comic series and its spin-offs published by IDW Publishing, the Death Egg Robots are a mass-produced Super Badnik in service to the Eggman Empire. The Eggman Empire Fortress version of the Death Egg Robot from Sonic Forces is also presented as one of the many Eggman mechs that Sonic has fought over the years. Their past is virtually identical to their game counterparts', up until after the events of Sonic Forces.



Main article: Giant Eggman Robot

The Death Egg Robot, from Sonic the Hedgehog 2 (film).

In the Sonic the Hedgehog film series produced by Paramount Pictures, the Death Egg Robot is a massive mech constructed by Dr. Robotnik using the power of the Master Emerald, referred to as the Giant Eggman Robot.


Death Egg Robot figure, by Jakks Pacific.

A plastic figure of the Death Egg Robot (referred to as the Giant Eggman Robot) in its Sonic the Hedgehog 2 design was released by Jakks Pacific on 23 June 2021.



  1. Flynn, Ian; Sega (8 December 2021). "Sonic Generations". Sonic the Hedgehog Encyclo-speed-ia. Dark Horse Books. p. 239. ISBN 978-1506719276.
  2. (in Japanese) ソニックメガコレクション最強攻略ガイド. Shogakukan. 1 March 2003. p. 101. ISBN 978-4091060907.
  3. 3.0 3.1 (in Japanese) ソニックジャム オフィシャルガイド. SoftBank. 2 October 1997. p. 53. ISBN 978-4797303377.
  4. 4.0 4.1 Sonic the Hedgehog: Level 3 game hint. LeapFrog Community. Archived from the original on 12 June 2010. Retrieved on 1 April 2021.
  5. 5.0 5.1 Sonic Forces - First Modern Sonic Gameplay. YouTube. Sega (17 March 2017). Retrieved on 17 March 2017. "Sonic blasts through a city under siege by Death Egg Robot sentinels in this first look at Sonic Forces. Coming this Holiday season to PlayStation 4, Xbox One, Switch, and PC!"
  6. Sonic The Hedgehog 4. Sega. Archived from the original on 30 May 2013. Retrieved on 26 January 2015.
  7. Sonic Forces Original Soundtrack - A Hero Will Rise, Disc 2, Track 19 - "Mark II Locks On"
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