- Dr. Robotnik redirects here. For alternate versions of Dr. Robotnik, see Ivo Robotnik (disambiguation).
- You may be looking for the article on Dr. Eggman (from Sonic the Hedgehog issues 72 onwards) also known as Dr. Ivo Robotnik.
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Dr. Ivo Robotnik, formerly known as Julian Kintobor, was a brilliant yet power-hungry mad scientist within the Overlander community until his twisted experiments landed him in prison. He managed to escape, forced to flee for his life and seek sanctuary among his people's sworn enemies: the Mobians. In exchange for his safety, Robotnik offered his services to King Maximillian Acorn, providing tactical information and decisive military leadership (with Robotnik being appointed the Royal Army's Warlord upon gaining the King's confidence) to bring an end to the Great War and drive the Overlanders off Mobius altogether, while also secretly planning his rise to power. Shortly afterward, Robotnik made his move and constructed mass robotic armies to lead a successful coup against the Kingdom, overthrowing the monarchy and becoming the tyrannical and despotic dictator of Mobius for the next ten years during a conflict known as the First Robotnik War. Eventually, Robotnik's efforts to pacify the Freedom Fighter groups on Mobius led him to become obsessed with defeating the greatest of their number: Sonic the Hedgehog. This obsession led to his death, as he was killed in combat with Sonic during the conclusion of Operation: EndGame, when Snively re-programmed his Ultimate Annihilator to erase him from existence. He was succeeded by his alternate-future counterpart, Robo-Robotnik v2.0, later known as Dr. Eggman.
History[]
Early Life[]
Julian working with Nate Morgan to create the Power Rings
Dr. Robotnik began his existence as Julian Kintobor of the House of Ivo, born in the city of Megapolis. Even in nursery school, Julian showed vile tendencies, having earned the "Brat of the Year Reward" back then. Growing up, Julian considered his older brother Colin "annoying", due to his teasing attitude and having him received more attention from their parents. He studied under the genius scientist, Dr. Nate Morgan for an extended period of time. Once his mentor passed unto him everything he knew, Julian conspired against Morgan and had him banished, allowing Julian full control of his laboratory. (StH: #5, #65)
During the breakout of the Great War between the animal-like Mobians and humanoid Overlanders, Julian worked as a high-profile weapons engineer for the Overlander armies at the request of the Ministry of Conflict, brainstorming the most sophisticated military hardware in history, including his first robot programmed with artificial intelligence, King Gong, and the creation of the first prototype of the Ultimate Annihilator, which would result in his death many years later. However, Julian's methods were put into question when it was revealed that he utilized live Overlander test subjects to perfect his weaponry. He was tried in court by the Minister of Justice, his own brother, and sentenced to ten years of imprisonment. This experience also weakened Colin and Julian's already strained relationship. (StH: #17, #72)
Warlord of the Kingdom of Acorn[]
Julian flees from captivity.
Sometime after his arrest, Julian somehow escaped confinement. After barely evading a death squad sent after him, Julian made it to the Badlands and found himself rescued by Jules and Sir Charles. The brothers brought him to the Kingdom of Acorn, where he was welcomed. In gratitude, Julian swore allegiance to King Acorn and pledged to impart inside knowledge on the Overlanders to turn the tide of the war. In addition to the Royal Family, a titled "Warlord" was charged with overseeing military matters. The Warlord at the time of Julian's arrival was a scheming lion named Kodos, who despite his hatred for Overlanders taught Julian everything about battlefield tactics. During a look over Ixis Naugus's former residence, Kodos tried to take Julian under his wing in a plot to overthrow King Maximillian, the Overlander Overlord and rule Mobius. Kodos planned to stage a coup and send his enemies to the Zone of Silence. Julian was enamored by the idea of conquering the world, but decided he didn't want to share power. Instead, he used the Atomic Mace, a weapon Naugus created, to knock out Kodos and banished him to the Zone of Silence. Following Kodos' "disappearance", Julian assumed the mantle of Warlord. He would later be aided by his wayward nephew, Colin Kintobor Jr. AKA Snively Robotnik. (StH: #50, #74)
Betrayal and Rise to Power[]
- See also: Robotnik's Coup d'état
Prior to the discovery of Sir Charles' Roboticizer, Warlord Julian's schemes to take over the kingdom involved using an army of cyborgs. In order to experiment with the idea, Julian required suitable test subjects. Rather than use any of the Mobians within the main Kingdom, which may be noticed and thus reveal his schemes similar to what had happened with the Overlanders, Julian went to the neutral village of Kar Leung where he proceeded to capture the local inhabitants, including Ken Khan. Although he captured numerous villagers for test subjects, all of their bodies rejected the cybernetic implants and died, with the exception of Ken Khan. Julian, disappointed that only one specimen survived, nevertheless tested his cyborg on an attacking group of Overlanders. After Monkey Khan attacked them and single-handedly destroyed their tank, the Overlander troops retreated. Julian was impressed by Monkey Khan's success, but was forced to permanently confine him after Khan attempted to turn on him. (StH: #86)
Following this, Julian discovered Sir Charles' brilliant device - the Roboticizer. Initially believing it to be a threat to his plans, Julian then realized it could be used to his advantage. With his plans for a cyborg army scrapped, Julian decided he could convert Mobians entirely to robotic slaves. After secretly sabotaging the device so that those roboticized would become mindless drones that obeyed only his commands, Jules Hedgehog became his first victim. (StH: #78)
Sometime later, Julian arranged for both the Overlord and King Max to decide the outcome of the Great War over a sword duel. In reality, the duel was designed to make Julian's plans of global domination easier, with at least one of his enemies supposed to die in the fight. If the Overlord won, Julian planned on simply taking command of the Mobians and leading them into a never-ending war. If King Max won, the Overlord would be killed and the Overlanders would surrender, removing a major power and enabling Julian to take over the Kingdom of Acorn from within. When King Max won the fight but decided not to slay the Overlord, Julian at first believed his plans to be foiled. However, Sir Charles, still blaming himself for what happened to his brother and sister-in-law, turned over the Roboticizer to Julian, which he realized he could use to enslave the Mobians. (StH: #78)
Robotnik revealing his betrayal to King Acorn and the Royal Court
Not long afterward, when Bernie discovered Jules being used as a pawn, Julian had the Robian throw her into the roboticizer as well. Julian explained to the already grieving Sir Charles that Bernie was roboticized in a lab accident while she tampered with the roboticizer. As a result of these losses, Sir Charles left the field of science to raise his nephew, while Julian's treachery went undetected. (StH: #79)
Shortly after the Great War's end, King Max agreed to Julian's plans to "dismantle" the military, also ending his title as Warlord and promoting him to the Minister of Science, all of which would be presented at a victory ceremony. Before the ceremony took place, Julian's plans to overthrow the kingdom were discovered by Amadeus Prower on the day of his son's birth. However, he too was subjected to the roboticizer before he could warn anyone. (SSS: #9)
That evening, Julian gave Snively the order to begin the attack. Hordes of SWATbots struck various points simultaneously throughout Mobotropolis, virtually halting any resistance, while also rounding up the citizens for roboticization. Changing his name from Julian Kintobor to Dr. Ivo Robotnik (after his grandfather and ancestral house), he transformed the once beautiful capital city of Mobotropolis into an industrial wasteland he dubbed Robotropolis. Robotnik's most symbolic victory was exiling King Maximillian Acorn into the Zone of Silence, securing his position as ruler. (StH: #43, FCDS: #3)
Robotnik revealing he has the Original Freedom Fighters in a trap.
Shortly after his capture of Mobotropolis, Robotnik found himself facing a resistance group known as the Freedom Fighters. The group used guerilla warfare, sabotage, and hit-and-run tactics to disrupt Robotnik's rule, raiding his factories for supplies and destroying them to prevent them from being used again. Over time, the Original Freedom Fighters proved quite successful in damaging the infrastructure of Robotnik's empire. However, after promising one of their members, Trey Scales, power and wealth in exchange for betraying his comrades, Robotnik managed to lure the whole group into a trap, roboticizing them and sending them into the Zone of Silence. This quelled local resistance until the rise of the Knothole Freedom Fighters. (StH: #142, #143)
Following this success, Robotnik became interested in exploring the Zone of Silence. Upon entering the zone using his Egg Mobile, the doctor was ambushed by Feist and brought before the zone's ruler: Ixis Naugus. Realizing that Naugus had absolute control over the zone, Robotnik quickly escaped from the zone with Snively's help with the intent to never return. (StH: #234)
Following this mishap, the tyrant then focused his attention on consolidating control of the rest of the planet. Soon enough, he had nearly all of inhabited Mobius under his thumb; only a selected few managed to hide from his expanding reach. He would continue to rule Mobius with an iron fist, with his loyal robotic henchmen and his lackeys, Snively and Crabmeat. Robotnik then lead an army of SWATbots to the Overland to enslave his species, only to see Megaopolis deserted. As time went on, Robotnik disseminated various regional governors across the planet called "Sub-Bosses" to enforce his will and to lead campaigns against local rebels, such as the High Sheriff in the Kingdom of Mercia, who successfully crushed the Crazy Kritter Freedom Fighters, Regina Ferrum and Jun Kun in the Dragon Kingdom, Octobot in the Mobian Ocean, and perhaps the most dangerous one Crocbot in Downunda, who managed to enslave much of the local population. Robotnik would even try expanding his rule to a galactic scale. (StH: #58, #103, #207, TMS: #2, #3)
A Worthy Adversary[]
Robotnik would launch several plots to destroy the Knothole Freedom Fighters - especially Sonic the Hedgehog - particularly in his last year of power. One of these plots involved going after Sonic himself in his Egg Mobile and trying to destroy him with Mega-Muck and Caterkiller's aid, only for Sonic to turn the tables on him and use his own tools against him. Furious, the doctor wanted revenge. Back in his office later on though, Crabmeat detected the Knothole Freedom Fighters out in the open, prompting Robotnik to go after them with his Egg Wrecker and Buzzbomber. Once again though, he was stopped by Sonic, who used a Power Ring he had saved for such an occasion, to defeat him. However, Robotnik managed to escape. Later, when a negotiation for the release of King Acorn was arranged between Robotnik and Sally, Robotnik had Sally bought to him, where he quickly broke their arrangement and prepared to roboticize Sally. Before he had Sally tossed into the roboticizer though, Sonic, Tails, and Antoine came to Sally's rescue. With his badniks and roboticizer destroyed by Sonic, and Antoine holding him at gunpoint, Robotnik was forced to let the Freedom Fighters escape. Later, Robotnik acquired the Freedom Emeralds and tried having his hench-bots hide them across Mobius. However, despite that, Sonic recovered all the emeralds. (OSM: #0, #1, #2)
Later, when Sonic was chased into the mountains, Robotnik showed up in his Egg Wrecker and knocked Sonic off an edge. When he found Sonic in his Egg Mobile though, the hedgehog had recovered and ran away, leaving it to Robotnik to chase after him. Soon after, Robotnik Sonic assigned Sonic a desk job when it appeared that he had fallen into a roboticizer and become a robot. When Buzzbomber suggested that Sonic could be tricking them though, Robotnik, having anticipated this, prepared to have Sonic tell him the location of Knothole. When an alarm occurred at the Crab Compound though, Robotnik sent Sonic over there to deal with it and test his loyalty. When he returned, Robotnik had him prepare a missile strike for Knothole, only to discover when the missiles destroyed one of his factorties that Sonic had tricked him all along with a robot disguise, just as Sonic escaped. (OSM: #3)
One day when he was a foul mood, Robotnik was presented with the mechanical Krudzu weed by a SWATbot, who suggested using it against the Knothole Freedom Fighters by spreading its seeds throughout the Great Forest. Liking the idea, Robotnik disposed of the SWATbot and took credit for the idea. Enacting the plan, the Krudzu began spreading throughout and smothering the Great Forest, with Robotnik eagerly waiting for the Freedom Fighters to come out and attack them with Buzzbombers. Unfortunately, the Krudzu was destroyed during a rainfall, prompting Robotnik to take his anger out on Burrobot, who planted the seeds. Later, in Renobotnik, Robotnik prepared to unveil his new Orbinaut to his robots when he spotted Sonic among the audience. As such, when revealing Orbinaut, he had the Badnik knock out Sonic, whom Robotnik trapped in a glass ball and began tormenting with his Giant Pinball Machine. However, when Robotnik returned from attending to a matter in his casino and resumed torturing Sonic, the hedgehog broke free, knocked out Robotnik, and blew up his casino. (StH: #1)
While fuming in his hatred for Sonic, Robotnik decided to sent out his new Badnik―Coconuts―to destroy Sonic after testing him out on Crabmeat. When Coconut was later returned to Robotnik in pieces though, Robotnik attempted to sent his Super Special Sonic Search and Smash Squad after the hedgehog. When Robotnik eventually called his squad though, Sonic revealed the group's failure to him via their phone, much to the doctor's anger. Later, Robotnik planned to get rid of the insects in his pantry with the Bug Bomb. After arrangements were made with Crabmeat, Robotnik learned that the Knothole Freedom Fighters were demonstrating in Robotropolis. Robotnik assembled his SWATbots to attack the group, only to fall for a trap that incapacitated them. However, Robotnik recovered in time to disguise himself as Rotor and take his place when the walrus tried taking the Bug Bomb so he could infiltrate Knothole. However, his plan was ruined when the real Rotor intervened and the Knothole Freedom Fighters escaped with the Bug Bomb, leaving Robotnik unable to clear his pantry of insects. Later, Robotnik made a giant Burrobot to destroy Sonic with, only for it to get defeated. (StH: #2, #3)
When his Bot Brigade brought him their latest specimen, Robotnik, having vowed to turn the next animal he got into a killer robot that could destroy Sonic, was outraged to discover that the group had only caught a mobini salamander. Regardless, Robotnik tried roboticizing the mobini. However, a mistake made by Buzzbomber turned the salamander into the evil and uncontrollable Universalamander. As such, Robotnik attempted to flee Mobius before Universalamander could destroy the planet. After the threat of Universalamander had passed, Robotnik returned and hosted a company picnic with his Badniks to celebrate his return before ordering his Badniks to resume their terrorizing activities. Soon after, Robotnik issued a challenge to the Knothole Freedom Fighters: if they could win one event in his Robotropolis Olympic Games, he would restore Mobius to normal, but if they lost, they would summit to roboticization. To ensure Sonic could not compete, Robotnik had a SWATbot replace Sonic's Sneakers with his Energy-Draining Sneakers, although the doctor was displeased when he learned that the SWATbot had not kept Sonic's Sneakers as a trophy. Regardless, when the heroes showed up in his Robotnik Stadium, where Sonic fell ill from his new sneakers, Robotnik got ready to roboticize the Freedom Fighters when Sally convinced him to let the others compete in Sonic's stead. With Robotnik's Badniks winning one event after another, Robotnik thought victory was assured until Sonic returned and ensured Antoine won an event. As he got ready to roboticize the Freedom Figthers anyway, Robotnik was forced to flee when Sonic overloaded his Port-O-Bot. Creating the Termite-Nator not long after, Robotnik sent his robotic insect to the Knothole Freedom Fighters when Rotor ordered an ant farm, his plan being to have the Termite-Nator eat the Great Forest from the inside out. Unfortunately, the Termite-Nator was soon sent back to Robotnik, who was taken hostage by the giant robot, which was now hungry for metal. As such, Robotnik was forced to keep feeding it metal to keep it from consuming them all, himself included. (StH: #4, #5)
Robotnik soon after moved his robo operations from Robotropolis to the Veg-O-Fortress. When Sonic arrived to foil his operations, Robotnik would impede Sonic's quest from his fortress's control room. After several failures though, he managed to reject Sonic from his fortress, allowing him to continue his roboticization efforts for another day. (StH: #6)
Other plots Robotnik tried included creating E.V.E. to destroy Sonic, the use of the Weather Annihilator to flush out any resistance, using an amnesia-ridden Sonic to defeat the Freedom Fighters, the use of Combots to locate Knothole, and sending supplies to Crocbot in Downunda to quell the local Freedom Fighter cell. All of these attempts proved futile, however. (StH: #21, #26, #27, #28, #34, TMS: #3)
Dr. Robotnik readies to board the Death Egg
At one point, Robotnik nearly managed to achieve victory over Sonic and the Knothole Freedom Fighters. With the help of escaped convict Nack the Weasel, Robotnik managed to capture and roboticize his nemesis, making him the powerful and subservient Mecha Sonic. While Mecha Sonic managed to destroy a large portion of Knothole Village, he was prevented from providing its location when Mecha Knuckles attacked him. Ultimately, Robotnik's plan backfired when the two Robians collided into Robotropolis, turning it into nuclear slag. Sonic was restored to his organic self shortly afterward by his One Billionth Power Ring, while Knuckles used the de-roboticizer. (StH: #39, SMM)
Following the Mecha Sonic disaster, Robotnik set to work on his next big scheme - the Death Egg; a powerful, orbital battle station capable of roboticizing the entire planet. Robotnik boarded his vessel upon its completion, leaving the rebuilding of Robotropolis to his nephew Snively, who instead used the SWATbot labor force to pamper him. Although nearly successful in sinking the Floating Island, the Death Egg was ultimately destroyed by Sonic and Tails. (SQM: #1, #2, #3)
After suffering numerous setbacks and having all of his plans foiled, Robotnik was furious. After King Max was rescued from the Zone of Silence, Robotnik tracked a powerful neutron energy reading, finally locating Knothole in the process. He finally developed his ultimate scheme, Operation: EndGame. (StH: #50)
Demise[]
Robotnik being erased by the U.A. during his final battle with Sonic
Operation: EndGame entailed several phases. Firstly, Robotnik tried to have Sally killed and frame Sonic for her murder, with help from the traitor Drago Wolf. Robotnik would also infiltrate Knothole using an Auto Automatron of King Acorn. With Knothole's location now known, Robotnik arrived at the Freedom Fighters' doorstep and held them at gunpoint. Rather than kill all of them immediately, Robotnik decided to make his victory more symbolic by using Knothole as a testing ground for his new "Ultimate Annihilator", a satellite weapon capable of warping reality and erasing matter. However, his plan began to unravel when Drago was discovered to be a double agent and Sonic was no longer charged with Sally's murder. Determined to avenge Sally's death, Sonic attacked Robotnik, and the two engaged in mortal combat, though Robotnik nonetheless managed to activate the Ultimate Annihilator. However, Snively had secretly altered the Annihilator's programming to only target Robotnik's DNA signature, which would allow Snively to take over unopposed. Instead of being "ultimately annihilated", Knothole was trapped in a strange time zone. At the same time, Bunnie Rabbot and Antoine D'Coolette planted an explosive in the Annihilator, and the explosion consumed Robotnik's entire command center. While Sonic and Knothole remained untouched, Robotnik was completely vaporized by his own weapon, ending both the First Robotnik War and his iron-fisted rule over Mobius after ten long years. (StH: #47, #48, #49, #50)
Beyond the Grave[]
Despite Robotnik's death seemingly bringing upon an era of peace for Mobius, less than a year later: his successor: Eggman (AKA: Robo-Robotnik and Dr. Robotnik Mach 2) arrived. Despite his coming from an alternate reality, Eggman had a near-identical back story to the former dictator and brought with him all of the history and hatred for Sonic that the original Robotnik had. Thus, anything Robotnik probably would have done if he had survived beyond his final battle with Sonic was carried on by Eggman. (StH: #75)
Months later, due to Chaos Knuckles' tampering with time, various versions of Dr. Ivo Robotnik appeared in different scenarios. In one, Robotnik had Sonic and Sally cornered on the edge of a building and demanded they return his "Flora Terminus" file. Sonic and Sally jumped off the building and landed in the Freedom Fighter Special and escaped. The timeline then changed again and was eventually restored by Chaos Knuckles. (StH: #101)
Robotnik's molecules brought back together by Dr. Eggman
At one point, Robotnik's displaced molecules recombined with the help of Chaos Knuckles' reality-warping abilities and a device invented by Dr. Eggman. The reborn Robotnik soon formulated a plot with Eggman to reverse the process as a way to destroy Sonic and his comrades. Robotnik tricked his old enemies in Knothole Village into thinking Eggman had resurrected him in order to steal his memories, and that he had escaped in hopes of forging an alliance with Sonic. King Acorn went along with the scheme, but it was revealed that the Freedom Fighters only granted him amnesty in an attempt to sabotage the device that had brought him back. Robotnik's return was cut short during a quarrel with Eggman his molecules dispersed. With the machine that brought him back destroyed, Robotnik's atoms remained dispersed forever. (StH: #108)
Appearance[]
Robotnik was a tall Overlander of imposing girth with a bald head (although his data file claimed his head was shaven), a dark orange mustache, and black eyes with crimson irises. His usual attire was a sleeveless, red jumpsuit with yellow lines spanning up, down, and around his body, wide shoulder pads, a yellow cape, and gray boots. Robotnik was also partially roboticized, resulting in his left arm from the shoulder and down being completely robotic. It is possible that some of his internal organs were robotic as well, as he was often seen with a drink of oil and was occasionally said to have a metallic heart. (STH: #4, #108)
On multiple occasions in his career, he donned a militaristic uniform consisting of a red coat, smaller shoulder pads, and gray pants. It was in this outfit he confronted the Original Freedom Fighters and led his Combot Army.
Personality[]
With a heart as black as his inhuman eyes, Robotnik was cruel, sadistic, cantankerous, narcissistic, and very egotistical. Sometimes, he would even unnerve himself with his own malice. He had been known to design machines that look like his face, examples including Robostorm, the Death Egg, and numerous ships. He hated to do harm to that which bears his image. Robotnik loathed the notion of additional megalomaniacs in his domain, constantly belittling his nephew Snively. (SA: #2, StH: #1)
Robotnik preferred polluted environments over forests. When Car-Heem attempted to study Robotnik, Sonic, and others in a replica of the Great Forest, Robotnik could not stand being in a non-toxic environment. He also had a pathological fear of the jungle and hatred any positive recreational activities for his subjects, such as singing, dancing, laughing, reading, horticulture, and bringing in cute animals. (StH: #1)
Robotnik was without any honor or integrity and was willing to break an agreement without hesitation for his own benefit, making him extremely untrustworthy. Despite this, Robotnik saw himself as a man of his own word, albeit only in situations where he would not lose face over his own vows. In addition, Robotnik was extremely short-tempered and prone to aggressive tantrums. Matching his temper was also an extremely callous demeanor towards everyone but himself. His callousness even extended to his lesser robotic servants, whom he would destroy at a whim for even the slightest infractions or just to have someone to take his anger out on when he was in a foul mood. He was also a prideful man and would hate himself for demeaning himself, especially when his needed to went his anger for Sonic. (OSM: #1, StH: #1, #4)
One of Robotnik's greatest obsessions was his hatred for Sonic the Hedgehog, whom he despised above all else. Determined to destroy him if it was the last thing he ever did, his hatred for the hedgehog would cause him to act irrationally or fall for his taunts, which would often lead to his plans derailing and ultimately fail. (OSM: #0, SA: #2)
Abilities[]
Robotnik's intellect made him a formidable foe on all levels. An avid robotics expert and engineer, he had personally crafted many models from the original generation of Badniks. Also, despite the fact his schemes were often foiled by the Freedom Fighters, Robotnik was able to successfully win the Great War, overthrow the Kingdom of Acorn, and rule for over a decade. (OSM: #0)
In addition to his intelligence, Robotnik's roboticized left arm enabled him to fire rockets and lasers. He possessed notable strength too, being able to lift his Egg Wrecker's wrecking ball with little effort. He had as well displayed excellent piloting skills in his various vehicles. He also displayed some combat skills in his climactic showdown with Sonic. (OSM: #0, SSS: #6)
Background Information[]
- Notably, Robotnik's design is largely based of the one seen in Sonic the Hedgehog television series.
- Developments in the comic revealed a villain tentatively titled "Anonymous" who manipulated events behind the scenes using older Robotnik technology. It was stated that he was around Robotnik's height, and his silhouette looked markedly like Robotnik Prime. In a surprise twist, however, it was revealed that Anonymous was A.D.A.M., Robo-Robotnik's rogue sentient computer virus. The lead writer has since explained that the reason Robotnik Prime's image was used to depict Anonymous in past issues was due to the fact that he was in fact originally going to turn out to be the original Robotnik.
- Robotnik's eyes were red for most of the time that he was in the comic, even when the eyeballs were normal (not black with red or gray pupils). How the eyeballs blackened is unknown, as is why he had coal-grey eyes in Sonic the Hedgehog #108. His ancestor, Brutus Kintobor, did have a similar condition, suggesting it might be hereditary and that Robotnik somehow concealed them. Other artist depictions seem to suggest they were cybernetic optics, implanted during the Great War.
- According to the Gregorian Calendar, day 164 is June 13. This occurs on a Friday, making Robotnik's date of death Friday, June 13, 3235.
- This was also the same month when Sonic the Hedgehog #50 was released.
- Likewise, day 253 is Saturday, 10 September 3189, going by the Gregorian Calendar.
- The reason for Robotnik's left arm being robotic was never revealed in the comics, in the Sonic the Hedgehog TV series it was caused by a time-traveling Sonic who knocked him into a nearby Roboticizer, it's possible that the same event happened in the comics when Sonic was around 5-8 years old. It was revealed that Robotnik’s eyes were cybernetic implants, when his headquarters had a blackout, he turned them on automatically to function as flashlights. Robotnik even stated that he had a metallic heart. His ears were either replaced (or simply covered) by mechanical nubs. Their function was never revealed.
Robotnik's cameo in the Post-Super Genesis Wave timeline.
- Robotnik is one of two strictly-Pre-Super Genesis Wave characters to be depicted in some form in the Post-Super Genesis Wave Timeline, appearing in one of Sonic's flashbacks. The other being Shard the Metal Sonic (albeit in his original "Mecha Sonic" form).
- On the main cover of Sonic Miniseries #0, Robotnik is depicted in his original American design for the original Sonic the Hedgehog game artworks released in North American and European regions where his blue glasses are depicted as completely black eyes (or otherwise beady black cartoonish eyes) and a lack of gloves, despite the actual story depicting him with his design from Sonic the Hedgehog television series.
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