E-Series

The E-Series is a fictional group of robots in the Sonic the Hedgehog series of video games. They are created by the games' antagonist, Doctor Eggman (or Dr. Robotnik in the early western version) who uses them in his quest to conquer the world. They are higher tier enemies than normal badniks, and are used by Eggman as a kind of elite trooper. The E-Series is the last series of Eggman's robots to use captured animals as a power source (with some exceptions, see below) - with more recent efforts such as the mass-produced Egg-Pawn series, Flickies are no longer used.The E-Series' first appearance was in Sonic Adventure in which E-102 Gamma is a playable character.