Appearing in Sonic the Comic Issue 15 in a story of the same name, the Green Eater was designed by Doctor Robotnik and constructed in the Scrap Brain Zone by a Badnik slave horde commanded by Terra-Droid. The science behind it is not explained, but the machine is capable of destroying all manner of plantlife on Mobius. The Emerald Hill Zone briefly suffered the effects of this machine, the grass and trees quickly deteriorating by an unseen force. As soon as Sonic heard about the Green Eater, he charged into the Scrap Brain Zone and demolished it.

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