e-102 gamma
One of the playable characters in Sonic Adventure. The second of the E-100 Series of robots created by Dr. Eggman. A predominantly red robot that wields an arm cannon, with the number 102 printed in his body.
Gamma would work in the Egg Carrier along with his fellow robots under orders from Eggman. However, a few interactions with Amy Rose and the Flicky she took care of prompted him to develop free will and to identify his creator as an enemy. Gamma then assigns himself the mission of saving his brothers from control by destroying their robotic exterior and freeing the animals that power them: E-103 Delta, E-104 Epsilon, E-105 Zeta, and E-101 Beta. This also includes his own destruction.