E-Series

The E-Series (Ｅ－シリーズ) are a robot line that appears in the Sonic the Hedgehog series. They are a production line of robots created by Dr. Eggman, who uses them in his quest to conquer the world. They are considered to be elite versions of the Badnik robots Eggman used in earlier games. The name was first used in Sonic Adventure.

The most famous E-Series robots are the E-100 Series from Sonic Adventure, particularly E-102 Gamma (who was a playable character in that game) and E-123 Omega (who has been a recurring character since his introduction in Sonic Heroes).

The E-Series is the last series of Eggman's robots to use captured animals as a power source (referred to in some continuities as an organic battery), with more recent efforts such as the mass-produced Egg Pawn series no longer using animals in this way.

E-00 Series
This line of E-Series first debuted in Sonic Adventure and was followed up in Sonic Adventure 2. Although most often connected with the E-100 Series of gunner robots that were prominent in that game (see below), these minor robots were also considered E-models:
 * E-01 Baby Kiki - a monkey robot that throws bombs
 * E-02 Rhinotank - rhino robot that charges at high speeds
 * E-03 Sweeper - a spider-like robot that walks on water
 * E-04 Leon - a chameleon that turns invisible
 * E-05 Boa-Boa - caterpillar robot that emits flames
 * E-06 Bladed Spinner - bat robot that spins
 * E-07 Ice Bot - small purple robot that sprays ice
 * E-08 Kart Kiki - monkey robot that drives bumper cars
 * E-09 Buyoon - balloon robot that can only be destroyed by the head
 * E-10 Cop Speeder - robot that chases you
 * E-15 Spiky Spinner - a black sphere robot with spiked balls circling it
 * E-16 Electro Spinner - electricity-emitting version of E-06
 * E-17 Ghora - red sphere robot with flames circling it
 * E-20 Kiki - a monkey robot that throws bombs
 * E-22 Beat - crab-like robot that self-destruct and cause an explosion
 * E-24 Jetso 
 * E-25 Duo Jet 
 * E-26 Bomb Jet
 * E-27 Hyper Jet 
 * E-28 Mecha Fish - an upgrade version of Chopper badnik
 * E-29 Egg Pirate - pirate robots with a sword
 * E-31 Gola - upgrade version of E-17 Ghora
 * E-32 Unidus - upgrade version of E-15 Spiky Spinner

E-01
There is a large machine in Death Chamber in Sonic Adventure 2. It is a very large, immobile, four-wheeled cylindrical unit the height of the central area it is positioned inside. Its "E-01" decal can be found near the top of its metallic outer shell. It is unknown if it is technically one of the E-Series robots, although it could be the base's central control computer.

E-100 Series
The E-100 Series (Ｅ－１００シリーズ) are the most prominent E-Series robots in the Sonic the Hedgehog series, being the only ones whose E-Series designations were revealed in-game. They were introduced in Sonic Adventure, in which they were prototype gunner robots, meaning that almost all were equipped with some sort of lock-on target ammunition, though its utility varied between models, but the following robots have since then evolved into more versatile machines in terms of combat. The E-100 series were also given Greek letter names.

Unlike many of Eggman's robots, some of the E-100 series were important characters in their own right. The E-100 Series is known for being more uniquely designed machines rather than Eggman's mass-produced, being more humanoid, more armed, more intelligent, and overall far more dangerous than their predecessors. Due to having so many capabilities and so high intelligence, some robots from the E-100 Series have been known to go rogue.

The most prominent robots in the E-100 series is E-102 Gamma, who was a playable character during Sonic Adventure and E-123 Omega, who has appeared frequently in the game series since his introduction in Sonic Heroes. Both of these robots are well known for eventually gaining independence and breaking free from Eggman's control, however for vastly different reasons. After the creation of E-123 Omega, however, Eggman has seemenly decommissioned the E-100 series.


 * ZERO
 * Egg Keeper - mass-produced robots that paralyze foes before attacking
 * E-101 models:
 * E-101 Beta
 * E-101 Mark II - upgraded version of Beta
 * E-102 models:
 * E-102 Gamma
 * E-102 Chaos Gamma - upgraded version of Gamma with two weapon arms
 * E-103 Delta
 * E-104 Epsilon
 * E-105 models:
 * E-105 Zeta - both original and defense versions
 * E-105 (Zeta) Series
 * E-106 Eta
 * E-107 Theta
 * E-121 Phi
 * E-123 Omega
 * E-1000 - mass production of Gamma*

There is also a duplicate of Chaos Gamma, known as Guard Robo, and the Unidentified E-100 series robot in Sonic Battle, which may be a member of the line (or was at least planned if production halted).

The now defunct Archie Comics site revealed the status of all of the E-100 series robots in "From the Databanks of E-102 Gamma", from E-100 to E-123.

E-2000 Series
The E-2000 Series was first introduced in Sonic Heroes and has so far only appeared in this game. Only two models in this series are known which are both highly powerful and destructive machines:


 * E-2000
 * E-2000R

E-10000 Series
Sonic Riders and Sonic Free Riders featured yet another branch of the E-Series. A difference in this branch is that they are referred to by color, as opposed to by name and number and is rather more programmed for Extreme Gear racing than direct combat. The E-10000 robots appear to be similar in appearance to Eggman, but more advanced. Except for color, they both seem to have the same, basic structure. They are also equipped with a targeting and analyzing mode, similar to what is displayed by E-102 Gamma. Some of these robots can also be raced against in Relay Races of Sonic Free Riders. Known E-10000 robots include:


 * E-10000B
 * E-10000G
 * E-10000R
 * E-10000Y

Typing errors
On the American Sonic Riders website, E-10000G and E-10000R accidentally got their stats (and possibly bios) reversed, and the website claimed that G was speed and R was power (it also lists their names as "Robo 1" and "Robo 2"). The Japanese website was correct, but in E-10000G's bio, it said the name "E-10000R" instead and vice versa. When the game came out, G turned out to be power and R was speed.

Archie Comics
In the Archie Comics' Sonic the Hedgehog, following Dr. Eggman's takeover of Dr. Ivo Robotnik's global empire, the doctor slowly replaced his late counterpart's conventional SWATbot forces with his newly designed E-Series robots. After Enerjak's attack on New Megaopolis and E-102 Gamma's series of attacks on the elite members of the E-Series, however, the number of Dr. Eggman's E-Series robots have been greatly diminished.

Sonic X robots
Several robots from the E-Series appeared only in Sonic X. These robots are not canon to the games, and given differences between the Sonic X continuity and the game continuity, there may be some conflict between numbers. The robots are as follows:
 * E-11 Beacon - Episodes 4, 12 & 13. Beacon is a purple bird robot, which Eggman first activated to help him retrieve a Chaos Emerald, but it is destroyed by Sonic. Eggman later activates a second Beacon model to help ward off an attack by G.U.N.'s air force.
 * E-12 Behemoth - Episodes 1, 11, 12, & 28. Giant mass-produced humanoid robot that protects Eggman's fortress. Sonic destroys several of them before finding Eggman. One of the few recurring robots from the series.
 * E-13 Guardbot - Episode 1, 11-13. Basically a machine gun turret on tank treads. One of these robots break Eggman's Chaos Emerald device, and is as such the reason why everyone is sent to Earth. Coincidentally, it is number 13, which is considered an unlucky number and broke Eggman's device.
 * E-14 Sneezer - Episodes 11, and 12. A missile-launching robot that protects Dr. Eggman's headquarters. Two boxy launchers make up its 'arms', while an extra trio of missiles adorn its head.
 * E-18 Guerra-Hard - Episode 13. A tall, powerful robot that Sonic confronts during his trip running through the doctor's fortress. It is powered by two Chaos Emeralds and gains the upper hand over the hedgehog but is eventually defeated and Sonic recovers the two Chaos Emeralds from it.
 * E-21 Ballios - Episode 10. An athletic robot built for playing baseball. Several of these robots form a team to challenge Sonic and co. to a game which the winner of which gets a Chaos Emerald. They played unfairly at first but eventually lost the game at the end.
 * E-23 Missile Wrist - Episode 3. Missile Wrist is equipped with missile-like grappling hooks attached to retractable cords in place of its hands. To start his campaign to take over Earth, Eggman unleashes Missile Wrist to cause havoc in Station Square, only for it to be destroyed by Sonic.
 * E-30 Laser Tank - Episode 1. The Laser Tanks were fairly large, mass produced robots seen in the first episode of Sonic X. They are never seen again, even during the attack on Eggman's Base halfway through the first season, giving the impression that they were all destroyed when Sonic tried to stop Eggman from using Chaos Control.
 * E-33 Buball - Episode 2 & 15. First briefly seen floating around Eggman's base in the second episode, these small, round, floating laser-shooters came into play during Eggman's massive attack on Station Square using the Egg Fortress. The Buballs were remarkably weak for Sonic X, such that several of them were destroyed by Mr. Stewart and Tanaka.
 * E-35 Funfun - Episode 12. A giant yellow bird robot with an equally giant fan that is used to stop Sonic and his friends from getting a Chaos Emerald. It is powerful enough to blow away the X-Tornado, but is destroyed regardless. Funfun was 9 meters tall and weighed 3 tons.
 * E-38 Octoron - Episode 9. An octopus robot that Eggman uses in order to try to drown Sonic. It fails and is destroyed.
 * E-39 Quizon - Episode 9. An army of construction robots with four arms with various tools. Eggman uses them to build a theme park in his image, and when Sonic arrives they combine into a long snake-like robot called Serpenter that is destroyed by Amy. A Quizon is one meter tall and weighs 150 kg.
 * E-42 Torole - Episode 15. A bipedal walker robot armed with a wrecking ball that bared resemblance to one of the bosses in one of the first Sonic the Hedgehog games. It was destroyed by the heroes. Torole was 12 meters tall and weighed 40 tons.
 * E-43 Falcon - Episode 15. Mass-produced orange bird robot. Several chase Sonic, but he hops on and rides one to the Egg Fort.
 * E-45 Sumo-man - Episode 21. Eggman sends Sumo-man, an extremely strong, but unintelligent robot, to stop Sonic from winning a race with Sam Speed. Too big and slow to catch Sonic, Sumo-man takes it out on himself, hitting himself in the face. Underestimating his own strength, Sumo-man is sent flying and crashes into Eggman's base. Sumo-man was 12 meters tall and weighed 30 tons.
 * E-47 Pumpty - Episode 5. A large robot with a cylindrical body that is hollowed out, allowing it to serve as a sort of mobile prison cell. Used by Eggman to capture Amy, Tails, and Chris while Sonic and Knuckles were fighting. Damaged by Amy, destroyed by Knuckles. Not to be confused with Humpty, a robot from Dr. Robotnik's Mean Bean Machine.
 * E-51 Intelligente (US)/Teacher Robot (Japan) - Episode 6. Intelligente is a robot teacher designed to interact with kids, and Eggman intended for him to brainwash the children into liking him. However, Intelligente became loved himself, and did not want to serve Eggman. He was forced into it again, He attacked Sonic with his "homework attack" (a missile launcher hidden under his hat) but sonic dodged all his missiles and destroyed him.
 * E-57 Clurken - Episode 16. A jellyfish robot sent to stop Sonic from acquiring an underwater Chaos Emerald. It was destroyed. Clurken was 27 meters tall and weighed 12 tons.
 * E-65 Gorru-Gaooh - Episode 18. A gorilla robot piloted by Decoe and Bocoe. It uses camouflage technology that renders it invisible, but Sonic destroys it regardless. Gorru-Gaooh was 8 meters tall and weighed 10 tons.
 * E-66 Da-Dai-Oh - Episode 22. A gigantic robot that Eggman brings with him during his vacation. It looks like a large metallic dome with legs, arms, and a head where Eggman is seated. It had extendable arms and spiked balls for hands, but was destroyed when it slipped on some unsteady ground. It was 100 meters tall and weighed 1000 tons.
 * E-70 Noizi - Episode 11. A robot equipped with super powerful sound wave generators, Noizi was set to guard Eggman's fortress. He nearly defeated Topaz and Rouge, but was bested when Rouge threw a bomb into its main speaker and set it off. Noizi was 8.2 meters tall and weighed 2.5 tons.
 * E-74 Weazo - Episode 23. A large green weasel-like robot equipped with a flamethrower, Weazo comes along to help Eggman retrieve the purple Chaos Emerald. However, despite its power, it is beaten by a tag-team effort from Sonic and Knuckles. Weazo was 7 meters tall and weighed 14 tons.
 * E-77 Lucky - Episode 25. Designed to be the ultimate lucky charm, Lucky's ridiculous and clumsy body is covered in good luck charm symbols. Lucky was dispatched to locate the seventh Chaos Emerald, but wasn't doing a good job because it kept falling over. Eventually, Lucky found it, and was going to give it to Sonic. Caught in a battle between Eggman and G.U.N., Lucky turned out to live up to his name, constantly dodging attacks that should have destroyed him. He also has the ability to fly. Lucky later appeared in a fighting tournament, and made it to the semi-finals because for certain reasons, such as his opponents never showing up or were forced to leave before fighting began. Unfortunately, his luck ran out when he had to face Emerl, as his victory dance burned out the remaining energy in his power cells and subsequently shut-down. Lucky was one meter tall and weighed 100 kg.
 * E-88 Lightning Bird - Episode 24. An ostrich-like robot. Sonic destroys a few and gets a part of one stuck in his ear. A Lightning Bird was 13 meters tall and weighs 25 tons.
 * E-90 Super Sweeper - Episode 8. A giant spacecraft, Eggman dispatched it to suck up satellites to grind into robot parts. Equipped with powerful missiles and lasers, a powerful suction force, and the ability to fly higher and faster than Tails' Tornado, Sweeper was seemingly unbeatable. However, it was no match for the improved X Tornado, and was destroyed by Sonic. It looks remarkably similar to the airplane Thunderbird 2 from Thunderbirds.
 * E-91 Lady Ninja / Ku-no-ichi (Japan) - Episode 17. A robot based on a female ninja, E-91 was equipped with shurikens, gliders, an electrocution net, a chain with a weight at the end that could either be small or turn into a wrecking ball, and an entire arsenal of different Ninjutsu techniques. Her name is a pun; the word "Kunoichi" means "Lady Ninja", but when the word is separated, it also means "91" (Ku-no-ichi). The Lady Ninja was dispatched to retrieve the red Chaos Emerald, but ran into trouble in the form of Knuckles the Echidna and Rouge the Bat. Eventually, she had Knuckles on the ropes, but Knuckles' human friend Hawk dumped water over her. Taking advantage, Knuckles hit her with a super punch, destroying her. Lady Ninja was 120 cm tall and weighed 200 kg.
 * E-99 Eggsterminator (US)/Egg Emperor (Japan) - Episode 26. The robot form of the Egg Fort II, the Eggsterminator was unleashed by Eggman when he was facing both Sonic and G.U.N.'s Beetle robots. Powered by six Chaos Emeralds, Eggsterminator could move faster and attack stronger than Sonic. Unfortunately, all the power sent him out of control, causing him to attack Sonic and co. without hesitation and glow an orange color. However, Eggsterminator was destroyed when Super Sonic, charged up with the energy of all seven Chaos Emeralds, rammed through it multiple times. The Eggsterminator was named "Egg Emperor" in Japan, and the name may have been changed to avoid confusing it with the "Egg Emperor" from Sonic Heroes.
 * E-3000 Egg Mars - Episode 56. A large robot that Eggman deploys in battle against a frog-like Metarex and in his efforts to acquire a Chaos Emerald. It was destroyed by the Metarex. E-3000 Egg Mars is similar to E-18 Guerra Hard from episode 13.
 * Others - When Eggman chooses robots with cards upon placing them into the Selection Machine (the selected robot appears on the 3 reels), several robots (or parts of them) can be seen that were never used.

Trivia

 * The E-100 robot's code names are named after the characters in the Greek alphabet. Alpha, Beta, Gamma, Delta, Epsilon, Zeta, and Omega are all letters from the Greek Alphabet.
 * There is a robot in the Archie comics named Isaac who bears a heavy resemblance to an E-100 Series robot, namely E-102 Gamma.