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The Eggrobo (エッグロボ Eggurobo?), also formatted as EggRobo[2] or Egg Robo,[4] and known as the Eggman Robo[1] (エッグマンロボ[1] Eggumanrobo?), is a character that appears in the Sonic the Hedgehog series. It is a mass-produced Badnik based on their creator, Dr. Eggman. In addition to being powerful soldiers on the battlefield, the Eggrobos are smart-bots designed to carry out tasks in the scientist's stead, making them a crown jewel in his attack force.[6]


The Eggrobos are fully egg-shaped humanoid Badniks, based on Dr. Eggman's appearance before the Chaos incident. As such, their middle torso is red with yellow downward-pointing triangles on the front while their lower torso is black with two silver buttons on the front. Their gray head area is clean with two small red eyes and a flat jaw fastened by yellow bolts. On their back they have two yellow and gray rockets for flight. They also have thin robotic arms and legs with round shoulders, white gloves and black shoes with white straps.

Following Sonic Generations, the Eggrobos' design became more detailed. In the same game, a different colored version of the Eggrobo appeared. These variations have complete black and gray torsos with red cape-markings and hatches on their head.




Game appearances[]

Sonic 3 & Knuckles[]


In Sonic & Knuckles, and the lock-on game Sonic 3 & Knuckles, the Eggrobos[7] (エッグロボ[8] Eggurobo?), alternatively spelled as EggRobos,[9] and also known as Eggman Robos (エッグマンロボ[10] Eggumanrobo?), appear as standard enemies in Sonic and Tails' version of Sky Sanctuary Zone where they are launched from the Death Egg. In gameplay, they hover in one place and shoot lasers from their pistols. Sometimes, they also emerge from towers with Animals escaping in their wake. The player can easily defeat them with a Spin Jump. If the player has collected all seven Chaos Emeralds, but not all seven Super Emeralds in Sonic 3 & Knuckles, as Sonic or Tails, an Eggrobo will be seen emerging from a pile of scrap in the post-credits scene, laughing at the camera.

An Eggrobo has a more prominent role of an antagonist in Knuckles' storyline of Sonic & Knuckles and Sonic 3 & Knuckles. Accordingly, it became Mecha Sonic Mk. II's subordinate following the destruction of the Death Egg, with Mecha Sonic Mk. II planning an attack on the Floating Island. As such, this Eggrobo was sent to attack Knuckles.[10] From there, the Eggrobo replaces Dr. Robotnik amongst the bosses in every Zone[note 1] up until Hidden Palace Zone. These boss battles with the Eggrobo are more challenging and have alternate attack patterns but are otherwise identical to Robotnik's encounters. The Eggrobo was later destroyed by Mecha Sonic Mk. II in Sky Sanctuary Zone when Knuckles escaped the Eggrobo's restraints just as Mecha Sonic Mk. II charged at him, causing it to destroy the Eggrobo and its Egg Mobile instead.

Robot puts on more challenge

The Eggrobo piloting the Egg Scorcher Mk. III, from Sonic 3 & Knuckles.

In Sonic & Knuckles, there is an introductory cutscene in Knuckles' story, in which the Eggrobo launches a bomb at Knuckles in Mushroom Hill Zone. However, this cutscene is not present in Sonic 3 & Knuckles (unless playing on Sonic Origins), due to Angel Island Zone becoming the first Zone instead of Mushroom Hill Zone.

Sonic R[]


In Sonic R, an Eggrobo, known as Eggman Robo[1] (エッグマンロボ[1] Egguman Robo?), appears as an unlockable character. It is unlocked by getting all of the five Sonic Tokens on the Regal Ruin course.

In gameplay, the Eggman Robo has most of the abilities Dr. Robotnik has, being able to fire Homing Missiles and hover across water, albeit only for about three seconds. Though it is a bit slow and clunky, it has superior cornering ability.

Sonic Adventure 2[]

In Sonic Adventure 2, the Eggrobo, under the name Egg Robo,[5] can be downloaded as a playable character for use in the Kart Racing minigame, along with a new course, titled the "Egg Robo" Course.[5] In Sonic Adventure 2: Battle and the 2012 remaster of Sonic Adventure 2, the Egg Robo can be unlocked in the racing minigame by clearing all of Rouge the Bat's missions.

Sonic Generations[]

In the console/PC version of Sonic Generations, Eggrobos from somewhere across spacetime appear as enemies in Sky Sanctuary. Like in Sonic & Knuckles, they are launched from the rising Death Egg, as seen in Sky Sanctuary Act 1. Their attack pattern is relatively the same as in Sonic & Knuckles, but they do not contain any Animals.

The game introduces a darker variation of Eggrobos in Sky Sanctuary Act 2 and several Challenge Acts which shoots missiles from their head that home in on the player, although these missiles are rather slow. A regular Eggrobo statue can also be unlocked in the Statue Room.

Sonic Mania[]


An Eggrobo on a high-speed transportation vehicle in Titanic Monarch Zone Act 1, from Sonic Mania.

In Sonic Mania, and its expansion Sonic Mania Plus, the Eggrobos make a few appearances, although not as enemies. The games also introduce a group of elite Eggrobos known as the "Hard Boiled Heavies" who are essentially Eggrobos modified by the Phantom Ruby.

Four Eggrobos appear during the boss battle with the Heavy Gunner in Studiopolis Zone Act 1. During the battle, they chase after the Auto Running player. One of them will hand the Heavy Gunner his bazooka, while another one pilots the Heavy Gunner's helicopter and rest of them fly around wielding batons. These Eggrobos cannot harm the player and vise-versa. Instead, the player has to knock blue missiles back at each of them one at the time. These Eggrobos do not release Animals after defeating them.

In Titanic Monarch Zone, Eggrobos appear as drivers of high-speed transportation vehicles that move along rails. Hopping into these vehicles on one end of these rails will transport the playable character to the other end of the rail. However, the vehicle and the Eggrobo will get smashed into a wall upon reaching the end, while the player gets tossed out of the vehicle without taking damage (if they have not jumped off earlier).

Sonic Frontiers[]


Eggrobos in 3-1, from Sonic Frontiers

In Sonic Frontiers, Eggrobos appear as common enemies exclusively in Cyber Space stages. Here, they retain their design and attack pattern from the console/PC version of Sonic Generations. They are present in stages 1-2, 2-5, 2-7, 3-1, 3-3, 3-6, 4-1, and 4-3. Their attack pattern is closely identical from Sonic Generations, although sometimes they are seen entering their position by quickly warping via a digital effect while flying due to being digital replicas of Badniks in Cyber Space.

Despite having multi-numbered hit points in different stages, the player can defeat them with a Spin Attack-related move after avoiding their laser projectiles. Eggrobos do not contain Animals and they are evaporated into digital pieces after being defeated.

Sonic Superstars[]


An Egg Robo, from Sonic Superstars.

Eggrobos reappear in Sonic Superstars as enemies during Trip's story and are found in all stages. One Eggrobo even pilots the boss machines and Egg Mobile that Eggman himself used on the Northstar Islands, just like in its debut. They act the same as their debut, though some will also take potshots at Trip from the background in certain sections.

Other game appearances[]

Sonic Chronicles: The Dark Brotherhood[]

In Sonic Chronicles: The Dark Brotherhood, a non-functioning Eggrobo is found lying around next to a Sega Mega Drive and a Capsule in Metropolis.

Sonic & All-Stars Racing Transformed[]

In Sonic & All-Stars Racing Transformed, Eggrobos make an appearance on the Sanctuary Falls track, which itself is based on the Sky Sanctuary Zone from Sonic & Knuckles. In this track, Eggrobos appear as both an obstacle and as a standard enemy like in their debut.

Super Smash Bros. for Nintendo 3DS[]

In Super Smash Bros. for Nintendo 3DS, the Eggrobos appear as common enemies in Smash Run. Unlike the original games, Eggrobos move around while in flight, and can fire their blaster at their targeted player.[11] In addition to Smash Run, it also appears as a trophy:

Name Picture Category Description Acquisition
Eggrobo Egg Robo EggRoboTrophy3DS Enemy These robots are one of Dr. Eggman's creations from the Sonic the Hedgehog series, where they tend to hover in the air and shoot at Sonic with their laser guns. In this game, they'll deliberately keep their distance while firing both short and long beams at the fighters. Get below them to avoid their fire, and then strike! These robots are one of Dr. Eggman's creations from the Sonic the Hedgehog series, where they tend to hover in the air and shoot at Sonic with their laser guns. In this game, they'll deliberately keep their distance while firing both short and long beams at the fighters. Get below them to avoid their fire, then strike! Random

Mario & Sonic at the Olympic Games Tokyo 2020[]

In Mario & Sonic at the Olympic Games Tokyo 2020, the Eggrobos appear as playable characters in the Volleyball 2D Event. During this event, the Eggrobos serve as Dr. Eggman's teammates. Notably, the Eggrobos possess their 16-bit sprite appearance from Sonic & Knuckles, albeit with some slight modifications.


Like most Badniks, the EggRobos have sentience that gives them a degree of free will and emotional capability, as one was visibly confused when Amy and Bark were on the cargo ship instead of the fruit shipments.[12]

Powers and abilities[]

The Eggrobos were intended to be the strongest of Dr. Eggman's robots, including Metal Sonic and Metal Knuckles, but failed to live up to their creator's expectations. However, the doctor does boast of the offensive abilities he gave them, suggesting they pack lots of firepower.[6]

All Eggrobos are capable of flight using their rockets. However, their true strength lies in their design which minimizes air resistance, allowing them to move at speeds matching even Metal Sonic's, who is known to reach Sonic's supersonic speed.[6]


The standard Eggrobos' primary weapons are singular energy beam pistols, which they wield at all times. These pistols can shoot long-ranged neon-colored lasers.


Giant Eggman Robo[]

Main article: Giant Eggman Robo

The Giant Eggman Robo is a large, Eggrobo-like mech.[13] It first appeared in Sonic & Knuckles.

Missile Eggrobo[]

Main article: Missile Eggrobo

The Missile Eggrobo is a black variant of the Eggrobo that launches rockets from their heads. It first appeared in the console/PC version of Sonic Generations.

Hard Boiled Heavies[]

Main article: Hard Boiled Heavies

The Hard Boiled Heavies, from Sonic Mania.

The Hard Boiled Heavies are a line of five elite Eggrobos that handled Dr. Eggman's most dangerous missions. This group consists of the Heavy Gunner, Heavy Shinobi, Heavy Magician, Heavy Rider and Heavy King.

Originally normal Eggrobos, all members of the Hard Boiled Heavies got transformed into customized and distinct versions of themselves after coming into contact with the Phantom Ruby. While this transformation made them more powerful, it also granted them free will, making it harder for Eggman to control them.

In other media[]

Books and comics[]

Sonic the Comic[]


An EggRobo, from Sonic the Comic #49.

In the Sonic the Comic series published by Fleetway Editions, an army of EggRobos appeared in the adaptation of Sonic & Knuckles. In this series, the EggRobos could be controlled directly by Dr. Ivo Robotnik from his control room aboard the Death Egg II. Each model had cameras fitted into its eyes, allowing the doctor to see everything, and a voice synthesizer allowed the doctor to communicate directly via the robots. The EggRobos could also function as regular Badniks without Robotnik's direct control.

Archie Comics[]

Eggbot Post-SGW

Julian Snively stuck in a broken Eggbot, from Sonic Super Digest #12.

In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Eggrobos were built by Snively Robotnik to be part of his own private army. They were intended to be used against Snively's uncle, Dr. Ivo Robotnik, and instead assist Snively in taking over Mobius himself. Although Snively referred to them as EggRobos in their first appearance, Antoine D'Coolette later called them Eggbots, which was the name used in all subsequent appearances.

Following the Super Genesis Wave, the Eggbots' history has become nearly identical to that of their game counterparts.

IDW Publishing[]

IDW Sonic Sailor Eggrobos

EggRobos in sailor attire from Amy's 30th Anniversary Special.

In the Sonic the Hedgehog comic series and its spin-offs published by IDW Publishing, several EggRobos wearing sailor attire worked in the Market Harbor Zone stealing fruit for their creator and guarding Bark the Polar Bear, who was locked in a Capsule. They were later destroyed when Amy's Flicky friend dropped her Piko Piko Hammer on the Capsule's button and freed Bark from imprisonment, whom he and Amy promptly destroyed the EggRobos. An EggRobo was also present on the rebuilt Eggman Island Zone, who was expecting fruit shipments, but was later destroyed by Amy and Bark.[12] Eggrobos were also present as guards aboard the Heavy Wing, though they were destroyed by Fang, Bean, and Bark.



3" Eggrobo action figures, by Jazwares.

In celebration of the twentieth anniversary of the Sonic series, Jazwares produced a 3-pack of 3" action figures with Classic Eggman and two Eggrobos.

In Wave 9 of the Jakks Pacific Sonic The Hedgehog toy-line, Jakks produced a 4” Eggrobo action figure which came with there energy beam pistol as a accessory. The action figure has 13 points of articulation and a description that reads “Eggrobo is a egg-shaped robot and is one of the most powerful Badniks.” Additionally they have a jetpack which can be pulled off and pushed back on.


  • In Sonic Generations, the Eggrobo is the only enemy robot which has its own unique projectile (a cyan/light blue beam). All other robot enemies with projectiles shoot a small yellow energy ball.
  • In Sonic Adventure: Navigation Guide, E-100 ZERO is referred to as the prototype of the "Eggrobo E-Series" (エッグロボEシリーズ[14] Eggurobo E-Shirīzu?) in its profile. This hints that the E-Series, or at least the earliest models, derive from the Eggrobos. However, the validity of this is unconfirmed.
  • An Eggrobo makes a cameo on the cover of Sonic X #11.


  1. In the original release of Sonic 3 & Knuckles, the Egg Hanger, the boss of Flying Battery Zone, is piloted by Dr. Robotnik even when playing as Knuckles. In Sonic Origins, this was corrected to feature the Eggrobo.


  1. 1.0 1.1 1.2 1.3 1.4 (in Japanese) Sonic R Official Guide. SoftBank. 24 December 1997. p. 22. ISBN 4-7973-0516-9.
  2. 2.0 2.1 Sonic & Knuckles (Sega Genesis) United States instruction booklet, pg. 20.
  3. Sega. "Story So Far". Sonic Mania Introduction Manual. Sega. p. 1. "Some time after saving Angel Island, Sonic the Hedgehog and his best friend, Miles "Tails" Prower, are relaxing when Tails picks up a strange energy reading far away. Though different from the Chaos Emeralds, the reading is remarkably powerful, and Tails convinces Sonic to join him to check it out. Sonic and Tails take off on the Tornado towards the source, but sure enough, the evil Dr. Eggman has detected it too! Now it's a race between Sonic and Eggman to get there first and figure out what mysteries it holds. However, Eggman has been busy: he's just unleashed a new team of elite Egg-Robos to handle his most important tasks. They're called the "Hard-Boiled Heavies," and they're about to reach the source of the signal first! It's up to Sonic, Tails, & their newest ally, Knuckles the Echidna, to defeat the Hard-Boiled Heavies, unlock the secrets of the energy source, and stop Dr. Eggman!"
  4. 4.0 4.1 Sonic Team (31 July 1997). Sonic Jam. Sega Saturn. Sega. Area/level: Sonic World, Museum. "Egg Robo."
  5. 5.0 5.1 5.2 Kart Download File. Sonic Team. Archived from the original on 30 April 2004.
  6. 6.0 6.1 6.2 About Characters (Japanese). Sonic Channel. Archived from the original on 9 October 2009. Retrieved on 5 July 2015.
  7. Flynn, Ian; Sega (8 December 2021). Sonic the Hedgehog Encyclo-speed-ia. Dark Horse Books. p. 54. ISBN 978-1506719276. "Knuckles's[sic] story takes place after Sonic's adventure. His peaceful return to the status quo is interrupted by an Eggrobo bombing raid."
  8. Sonic & Knuckles (Sega Mega Drive) Japanese instruction booklet, pg. 20.
  9. Sonic & Knuckles (Sega Mega Drive) Japanese instruction booklet, pg. 32.
  10. 10.0 10.1 (in Japanese) ソニックジャム オフィシャルガイド. SoftBank. 2 October 1997. p. 93. ISBN 978-4797303377.
  11. Super Smash Bros 3DS - Smash Run Gameplay w/ Direct Audio (E3 2014). YouTube. GameXplain (10 June 2014).
  12. 12.0 12.1 Sonic the Hedgehog: Amy's 30th Anniversary Special, "story one"
  13. (in Japanese) ソニックジャム オフィシャルガイド. SoftBank. 2 October 1997. p. 90. ISBN 978-4797303377.
  14. "AMY" (in Japanese). Sonic Adventure: Navigation Guide. SoftBank. January 1999. p. 113. ISBN 978-4757203006.

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