Doctor Eggman - Concept and Inspiration

Concept and Inspiration

In April 1990, Sega commissioned its AM8 R&D department to create a character who would replace Alex Kidd as the company's mascot, as well as compete against Nintendo's flagship character, Mario. A caricature of Theodore Roosevelt was among the proposed designs, and combined with the idea of an egg-shaped character, it eventually became the basis of the visual design for Dr. Robotnik/Eggman. In creating the "bad guy" for the Sonic series, the development team wanted a character who was "the opposite of Sonic;" a character who represented "machinery" and "development" to play on the then-growing debate between developers and environmentalists. The character was also designed to be easy for children to draw.

The English instruction manual for his 1991 debut game Sonic the Hedgehog described the character's full name as "Doctor Ivo Robotnik", while the original Japanese version's instruction manual for the same game called him "Doctor Eggman". It wasn't until 1999's Sonic Adventure that the character was called both "Doctor Robotnik" and "Doctor Eggman" in the English version, with all following English releases to date referring to him as "Doctor Eggman". Yuji Naka has explained that "Robotnik" is the character's true last name while "Eggman" is a "common name taken after his shape. The name may also be a reference to the Beatles' song I Am the Walrus; though aside the walrus motif of his original design, this was never directly confirmed. Since then, Sega of America has listed his identity as Doctor Ivo "Eggman" Robotnik at least once, and has recognized the first name Ivo as recently as 2011. Despite that, Sega of Japan does not acknowledge an official complete name; the Japanese Sonic Channel lists his full name as unknown, and his in-game profile in Sonic the Hedgehog 4: Episode II lists his real name as a mystery.