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Sonic News Network
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This transformation exists primarily or exclusively within the Sonic Boom continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

Sonic Cookie Eggman[1] is a transformation that appears in the Sonic Boom series. It is a transformation of Dr. Eggman brought upon by him eating an Evil Cookie with Sonic's DNA.


Sonic Cookie Eggman is physically the same in appearance compared to his normal form, although his entire body, including his clothing, takes on a blue color reminiscent to that of Sonic's fur.


TV series

Season one

After Sonic forcibly fed Dr. Eggman an Evil Cookie with his own DNA in it, Eggman transformed into Sonic Cookie Eggman. Sonic Cookie Eggman held off Sonic's friends long enough for Sonic to return with scraps of DNA from each of his friends to return them back to normal. Afterwards, Sonic Cookie Eggman commented on how it was great that they could now fight side by side. However, Sticks the Badger tossed an Evil Cookie with Eggman's DNA in his mouth, returning the doctor to normal.[2]


Outside of Sonic's regular combat skills, Sonic Cookie Eggman also takes on the personality of Sonic, becoming more upbeat, sassy, cheery, and well-meaning.

Powers and abilities

Due to having been imbued with Sonic's DNA, Sonic Cookie Eggman possesses virtually all of Sonic's abilities, including his super speed, fast reflexes, hand-to-hand combat skills and spin attack.


  • This is the first named transformation to appear in the Sonic Boom series.


  1. Sonic the Hedgehog on Twitter. Twitter (1 April 2015). Retrieved on 4 January 2017.
  2. Derrien, Jean-Christophe; Liemt, Romain Van (6 December 2014). "Eggheads". Sonic Boom. Season 1. Episode 8. Cartoon Network.