Sonic Wiki Zone

Know something we don't about Sonic? Don't hesitate in signing up today! It's fast, free, and easy, and you will get a wealth of new abilities, and it also hides your IP address from public view. We are in need of content, and everyone has something to contribute!

If you have an account, please log in.


Sonic Wiki Zone
Sonic Wiki Zone

Finally, with the energy collected from the Extractor, I can rule the world! Pity about the damage done down there, but there's still enough left for me to conquer.

Dr. Eggman, Sonic Lost World

The Eggrobo,[1] also known as the Super Eggrobo,[2] is a vehicle that appears in the Sonic the Hedgehog series. It is a giant mech powered by the life of Sonic's world that Eggman and the Deadly Six plundered using the Extractor.



The Eggrobo is a massively large mech bearing a strong resemblance to Doctor Eggman prior to the Chaos incident. It possesses a spherical red torso with two yellow and triangular markings extending down from its collar, a purple and circular light in the middle of its torso, a straight recess down the front, a lower gray section, and a line of green lights on the front on the upper border of the torso's gray section. It also has a dome-shaped head with a line of teeth, a pointy red nose, a black and curved mustache, a left eye resembling a black eyepatch with a green pupil inside it, a red right eye without a pupil, and a class dome on top of it for the Egg Mobile to be inserted into. As for its arms, it possesses large and spherical red shoulders at the size of its torso that have yellow-rimmed green lights in the center, small and spherical upper arm joints, large and cylinder-shaped red forearms with gray rims on the upper rims and yellow rims around the wrists. Meanwhile, its hands are gray spheres resting inside its forearms with a yellow-rimmed green light on their palms and five fingers with laser barrels on the fingertips. It also has stubby legs in comparison to the rest of its body, with large spherical tights, round kneecaps, excessively large lower legs resembling boots, and green lights around them. Lastly, it possesses two green tanks on its back and a cape made of life energy.

Abilities and traits[]

The Eggrobo is a massive powerhouse but is incredibly slow. Its thick chassis makes it highly resilient to attacks and it possesses a jetpack that makes it capable of flight. It can also fire its hands as projectiles, launching a barrage of fireballs with every spin, similar to that of a Gatling gun.


Sonic Lost World[]

In the Wii U version, PC version and Nintendo 3DS version of Sonic Lost World, the Eggrobo was constructed by Dr. Eggman in the period before the Deadly Six rebelled against him, and was specifically designed to be powered by the energy harvested via the Extractor. Before Eggman could deploy this mech, however, he was driven off from his operations by the Deadly Six when they broke free.

To get to the Eggrobo again and as well stop the Deadly Six from destroying the world, Eggman teamed up with Sonic and Tails. When Eggman and Sonic arrived at Lava Mountain, however, he faked his own death so he could get to the Extractor and the Eggrobo without anyone knowing. While Sonic took care of the Deadly Six, Eggman used the energy the Extractor had collected to super-charge the Eggrobo.

When Sonic and Tails got to the Extractor to shut it down, Eggman ambushed them in the Eggrobo. After having explained how he survived, Eggman revealed his plans to conquer whatever that was left of the world from the Extractor's effects with the same energies it had harvested. However, Sonic did not intend to let Eggman go through with his plan and engaged Eggman in the Eggrobo. In the end, the Eggrobo was no match for Sonic, who utterly destroyed it.


Wii U/PC[]

The Eggrobo is the final boss of the Wii U version and PC version of Sonic Lost World. It is fought in Lava Mountain Zone 4 with Sonic the Hedgehog.

Boss guide[]

The beginning of the battle takes place in a narrow, straightforward platform aisle that Sonic runs on after being fired from a cannon. The Eggrobo adopts three different attacks during this boss fight:

  1. The floating hands of the Eggrobo shoot out a string of green energy bullets in a straight line. Sonic must stay in between the two streams. Once Eggman has been hit a couple of times, these streams become wavy rather than straight.
  2. Scrolling laser beams fire out from the Eggrobo, and move them across Sonic's highway. These must be jumped over with the Double Jump. Again, the pattern changes up once the Eggrobo has been damaged: the lasers strafe much faster.
  3. The levitating hands fly parallel to Sonic and try to squash him. Again, Double Jump above the hands' grasp to dodge.

Having dodged the previous three attacks, Sonic is close enough to launch a Homing Attack on the mech's leg. This will lead the Eggrobo's arm to drag along the highway, allowing for another series of Homing Attacks, finally on Eggman's cockpit. Once hit, the Eggrobo will fall on the ground and roll until it manages to pick itself up again. During this time, Sonic has a chance to use the Focused Homing Attack at the Eggrobo while it is rolling to deal additional damage.

It should be noted that Super Sonic cannot be used for this fight through normal means.


Name Artist(s) Length Music track
"Dr. Eggman Showdown" Tomoya Ohtani 3:47


Nintendo 3DS[]

The Eggrobo is the final boss of the Nintendo 3DS version of Sonic Lost World. It is fought in the Lava Mountain Boss Zone as well as Lava Mountain's Extra Zone, both as Sonic the Hedgehog.

Boss guide[]

The battle begins with Sonic already running after Eggman's mech, though unlike the Wii U/PC version, he has the ability to control his speed via the R button, rather than automatically running at his top speed. The Eggrobo fight lasts longer in this version and uses different set of attacks from the Wii U/PC version, each based on two Color Powers:

  • Lightning/Laser: The Eggrobo's floating hands fire out plasma beams based on the Ivory Lightning and Cyan Laser, which are avoided by moving out of the way. As the Eggrobo takes more damage, it will fire from both palms. Sometimes the beams will swivel around and be crossed in an X shape, forming an energy ball in the center, although this happens extremely late into the fight and can possibly be avoided if the player is fast enough. However, this variation of the attack is performed much more frequently in the Extra Zone, as well as in Hard Mode. The Extra Zone introduces another variant, in which Eggman will merge both beams into a very large one that scrolls across the pathway; this one only occurs very late into the fight, however.
  • Burst/Asteroid: The Eggrobo raises its arms in the air, flinging three or five Red Burst-influenced fireballs at Sonic (four or five in the Extra Zone) that are avoided by stepping out of their crosshairs. Once the Eggrobo has received enough damage, Eggman will toss a larger fireball which he combines with the Indigo Asteroid; upon landing, it will create a black hole that will instantly kill Sonic if he comes too close to it.
  • Drill/Quake: The mech's hands utilize the Yellow Drill to drill into the terrain, causing rocks to spike out from the ground that Sonic must maneuver around. After dealing enough damage, the drills will launch rolling boulders influenced by the Gray Quake at Sonic. Occasionally, the mech will slam its hands onto the ground and shake it, also much like the Gray Quake. If Sonic fails to jump in order to avoid this, he will momentarily be unable to jump, making it harder to dodge the rocks.

Between every attack, the power of the Eggrobo will be shown and will increase as the Eggrobo loses health. In Easy mode, it will start from 1000, then go up to 8000, then finally 10000. In Hard Mode, it will start from 1000, but temporarily go up to 5000 for one attack, then go down to 1000, then 8000, then finally, 10000. Finally as the boss of Lava Mountain's Extra Zone, it will start at 5000, then 8000, 10000, and will go past its limits as it reaches a power of 100000.

After dodging enough attacks, Sonic will get close enough to launch a Homing Attack, but initiating the attack is a little different in this version, as Sonic must lock-on to the arms, the legs and the chest at the same time to be able to reach Eggman's cockpit. Near the end of the fight, these sections become a little more difficult, as Eggman will fire homing missiles at Sonic. When the Eggrobo tumbles afterwards, Sonic can unleash a Focused Homing Attack to deal more damage. The amount of damage Sonic can deal to the Eggrobo is slightly lowered in Hard Mode as well as in Lava Mountain's Extra Zone, and the amount is even further reduced in Hard Mode's version of the latter.

As the fight draws closer to the end, the mech will drop Wisps which will encase Sonic in a shield made from the stolen life, accompanied by a sound effect from the Genesis games. Eventually, Sonic will launch a final attack on the Eggrobo, and the player is prompted to mash DSB as fast as they can to successfully destroy the mech and end the fight. Unlike the Wii U/PC version, there are no Red Star Rings to collect, and Super Sonic can be used in this fight, although he will de-transform for the final attack.


Name Artist(s) Length Music track
"Dr. Eggman Showdown" Tomoya Ohtani 3:47


In other media[]

Books and comics[]

IDW Publishing[]

Main article: Super Eggrobo 2.0

The Super Eggrobo 2.0, from Sonic the Hedgehog #50.

In the Sonic the Hedgehog comic series and its spin-offs published by IDW Publishing, a smaller non-Extractor powered version of the Eggrobo named the Super Eggrobo 2.0 was stored in the Memorial Garage and eventually used by Dr. Starline to battle Dr. Eggman's Egg Emperor, but it was defeated.


  • There is a glitch in the Wii U version and PC version that allows the player to transform into Super Sonic. Ironically, the transformation is only allowed on the final attack, which is the opposite of the Nintendo 3DS version. To do this, the player must have all Red Star Rings and obtain fifty Rings. As soon as the game becomes slow-motion for the final attack, the player has to hit the jump button for the Homing Attack then quickly activate Super Sonic.
    • Since Super Sonic was never programmed for autorun sections, Super Sonic will not be running forward and the Homing Attack is the same as on foot, making it harder to reach Eggman for the final attack. The path is circular, thus making it easier to fall on the lava since the camera is stuck as the same position for the final attack.
  • When Eggman is defeated, he is ejected from his mech and sent soaring into the distance before exploding into an Eggman Empire decal-shaped firework when he is out of sight, just like when the Nega-Wisp Armor is defeated in the Wii version of Sonic Colors and the remastered version Sonic Colors: Ultimate.




Wii U/PC[]


Nintendo 3DS[]


See also[]


  1. Flynn, Ian; Sega (8 December 2021). "Sonic Lost World". Sonic the Hedgehog Encyclo-speed-ia. Dark Horse Books. p. 241. ISBN 978-1506719276. "Bosses: Deadly Six, Giant Zavok, Eggrobo"
  2. BumbleKast for July 4th, 2022 - Priority Q&A Podcast with Ian Flynn (45:00). YouTube (4 July 2022). Retrieved on 7 July 2022.

Main article · Script · Beta elements · Credits · Glitches · Gallery · Re-releases (PC)

Main article | Script | Staff | Glitches | Gallery