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This character exists primarily within the Sonic X continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

E-99 Eggsterminator

E-99 Eggsterminator (E-99 エッグエンペラー E - 99 egguenperā?, lit. "E-99 Egg Emperor") is a character that appears in the anime series Sonic X. It was an E-Series robot and the robot form of the Egg Fort II.



Chaos Emerald Saga

Having acquired six of the seven Chaos Emeralds, and taken Christopher Thorndyke as his hostage, Doctor Eggman attempted to retrieve the seventh Chaos Emerald from his robot, E-77 Lucky.[1] Both Sonic and GUN's Beetle robots tried to stop Eggman, but Eggman used the six Chaos Emeralds to transform the Egg Fort II into the Eggsterminator.[2]

Eggsterminator kicks Sonic

Whilst harnessing the power of the seven Chaos Emeralds, the Eggsterminator attacks Sonic

The Eggsterminator destroyed the government robots and, with the power of the Chaos Emeralds, it became faster and stronger than Sonic. However, all the power sent it out of control, causing it to attack Sonic and co. without hesitation and glow an orange color. Fortunately, Chris was able to break free from the Eggsterminator, grab the six Chaos Emeralds (badly burned by the Emeralds' energy being in use), and jump out of a window. Chris was rescued by Rouge the Bat, but Sonic and all seven Chaos Emeralds fell into the sea, where Sonic was transformed into Super Sonic. In this transformation, Super Sonic was able to destroy the Eggsterminator, ramming it multiple times.[2]


  • The Egg Emperor was named "Eggsterminator" in the English dub. This may have been an intentional effort to distinguish it from the Egg Emperor of Sonic Heroes, or may simply have been a convenient benefit of an arbitrary rename by the English scriptwriters.



  1. Masaki, Hiro (20 March 2004). "A Dastardly Deed". Sonic X. Season 1. Episode 25.
  2. 2.0 2.1 Masaki, Hiro (27 March 2004). "Countdown to Chaos". Sonic X. Season 1. Episode 26.

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