A Fake Eggman in Sonic Heroes

Fake Eggmen first appear in Sonic The Hedgehg 2 as a spherical copy of Robotnik in a spherical eggmobile.

They then appeared in Sonic The Hedgehog 4 as enemies that would explode, Eggman used them in the Mad Gear Zone. A new variant called a Giant Exploding Eggman appeared.

There last apperance was in Sonic Heroes, where Metal Sonic would turn into them to fool the heroes after boss fights.