Triple Triad Extreme

E-101 Beta is the oldest brother of the E-series machines, he first meets Gamma in the Mystic Ruins base, where they duel for superiority. Gamma defeats Beta and is granted permission to travel aboard the Egg Carrier along with the other E-series machines. Beta, however, clearly upset about this, moves in front of Gamma as a plea to also join the others. He is told he can be used for spare parts by Robotnik and is not seen till much later in Gammas Story.