Eggrobo

Eggrobo (エッグロボ), also spelled as EggRobo or Egg Robo, is a recurring character in the Sonic the Hedgehog series which debuted in Sonic & Knuckles. They are mass-produced Badnik models resembling their creator Dr. Eggman. In addition to being powerful soldiers on the battlefield, the Eggrobos are smart-bots designed to carry out tasks in Eggman's stead, making them a crow jewel in Eggman's attack force.

Appearance
Eggrobos are fully egg-shaped humanoid Badniks, based on Dr. Eggman's likeness. 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, making their design resemble Eggman's attire from the pre-Dreamcast era. Their grey head area is clean with two small red eyes and a flat jaw fasten by yellow bolts. On their back they have two yellow and grey rockets for flight. They also have thin robotic arms and legs with round shoulders, white gloves and black shoes with white straps.

Since 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 grey torsos with red cape-markings and hatches on their head.

Sonic & Knuckles
In Sonic's storyline of Sonic & Knuckles and lock-on version Sonic the Hedgehog 3 & Knuckles, the Eggrobo appears as a standard enemy in Sky Sanctuary Zone, after being seen launched from the Death Egg. It is found hovering at one place and shooting laser from its pistol. The Eggrobo can also found hovering out of towers with Animals escaping from it. The player can defeat them by using Spin Jump while avoiding lasers.

It is rather more prominent role in the Knuckles' storyline of Sonic & Knuckles, as the Eggrobo replaces Dr. Eggman as the end-of-Zone boss in every level up until the Hidden Palace Zone except for Flying Battery Zone. In all of Knuckles' appearances prior to this, he had been allied with Robotnik. It's also implied that the Eggrobo in Knuckles' story is the same one that appears in Sonic's imperfect ending (if the Super Emeralds aren't collected), implying that the Eggrobo in question survived the Death Egg's destruction.

Chronologically after the events of Sonic's storyline, EggRobo appears at the beginning cutscene of Sonic & Knuckles. As Knuckles is relaxing along with some of his animal friends in the Mushroom Hill Zone, the Eggrobo drops a bomb in their midst that scares his friends away. The Eggrobo is destroyed by Mecha Sonic in the Sky Sanctuary Zone (the final level in Knuckles' storyline). The Eggrobo restrains Knuckles, allowing Mecha Sonic to charge at him, but Knuckles breaks free and Mecha Sonic destroys the Eggrobo instead.

Sonic R
Eggrobo, renamed Eggman Robo (エッグマンロボ) in the Japanese version, later appears in Sonic R as an unlockable character. It has abilities similar to Dr. Robotnik's in that game, being capable of launching missiles, though Eggrobo is a bit slow. It is unlocked by getting all of the five Sonic Tokens in the Regal Ruin course.

Like Metal Sonic, Tails Doll, and Metal Knuckles, the Eggrobo is the robotic counterpart for Dr. Robotnik. He performs almost the same although he cannot travel across water for more than three seconds before falling in which is odd because of his rocket boosters.

Sonic Adventure 2
Eggrobo also appears in Sonic Adventure 2 as a kart racing VMU Download with his own stage, and again in Sonic Adventure 2: Battle as Rouge the Bat's unlockable sub kart, obtained by getting all the emblems of Rouge's missions.

Sonic Chronicles: The Dark Brotherhood
An Eggrobo appears in Sonic Chronicles: The Dark Brotherhood as a cameo next to a Sega Genesis and a Capsule in Metropolis.

Sonic Generations
Eggrobo returns in Sonic Generations as an enemy in Sky Sanctuary, like its original appearance in Sonic & Knuckles. The game also features a different variation of Eggrobo in Act 2 which trigger missiles from above their head to home on the player. A model can be collected in the Statue Room.

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

Super Smash Bros. for Nintendo 3DS
Eggrobos appears as an enemy on the exclusive mode Smash Run in Nintendo 3DS version of Super Smash Bros. for Nintendo 3DS. It will fly towards the playable character and shoots the energy beam towards him/her. In addition to Smash Run, he also appears as a trophy.

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

Archie Comics
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, Doctor Robotnik, and let him take over Mobius himself. Although Snively referred to them as "EggRobos" in their first appearance, Antoine D'Coolette called them "Eggbots," which was the name used in subsequent appearances.

Following the events of Worlds Collide, the Eggbots' history has become nearly identical to their game counterparts'.

Trivia

 * The Eggrobo has become basics for many later created Eggman-looking robots in games and other media. Notable of these include Robotnik's guard robots from Sonic the Hedgehog: The Movie, briefly seen robots from Sonic the Fighters, E-100 series robots, Egg Pawns and Egg Bot from Sonic Chronicles: The Dark Brotherhood.
 * All three Sonic Advance titles have final boss robots that use title "Eggrobo"; Sonic Advance features the Super Egg Robot, Sonic Advance 2 has the Super Eggrobo Z, and Sonic Advance 3 feature the Hyper Eggrobo.
 * In Sonic Generations, the Eggrobo is the only enemy robot which shoots its own unique laser weapon. All other robot enemies with projectiles shoot a small yellow energy ball.
 * The Eggrobo made a cameo on the cover of Sonic X issue 11.