E-101 Beta

E-101 Beta (ベータ) (β) is a silver and black bipedal robot that was created for the E-100 army by Doctor Eggman. He has two guided missile-launchers on his arms.

Eggman defined Beta as E-102 Gamma's "big brother", and decided to pit Beta and Gamma against each other to determine which robot would be fit to serve under him on the Egg Carrier. Gamma ultimately goes on to defeat Beta and his design is cloned for the remaining Egg Carrier crew - Delta, Epsilon and Zeta.

The obsolete Beta was relegated to the storage area to be used as "spare parts". Unhappy with his incompetent design, Eggman begins work on remodeling him into E-101mkII (E-101改). The parts left over from Beta's remodeling were apparently used on E-103 Delta.

E-101 MKII


During his time in storage, Beta underwent extreme reconstruction into a highly advanced "Mark 2" (MKII) model, taking the form of an airborne fighting machine, enhanced in almost every way over his previous model. Some of his new features included more advanced homing missiles, laser cannon arms, and large spiked gauntlets used for charging attacks. E-101 MKII navigated with jets and a tail-like rudder, and employed an advanced tracking system in his head, taking the form of a single green camera "eye".

E-101 MKII's improved fighting capabilities granted it the ability to create rainbow-coloured force fields, fire a spread of several (ranging from 2 to 10) guided missiles to chase down moving targets, and fire powerful energy blasts from great distances using its new cannons, which would explode on contact with the ground. It was also much more agile than its previous form, being able to dodge missiles at extreme speed (leaving afterimages in its wake), and even still, could also simply bat away missiles with its shield-like gauntlets.

Gamma and the improved Beta faced off once again aboard the downed Egg Carrier as part of the former's crusade to "rescue" his brothers from Eggman's control. Beta, despite its improvements, had his weaknesses exploited, and was defeated by several well-placed missile shots. After his defeat, E-101 fell to the floor of the Egg Carrier, lying motionless on the ground.

However, with the last of his power, Beta suddenly blasted Gamma at point-blank range as he approached, causing fatal damage to his younger brother and exerting his power supply at last, exploding in a dome-shaped fireball as Gamma limped away. Through doing so, he ironically assisted in completing E-102's mission by freeing the birds trapped within both of them.

In Sonic X, E-101 MK II is referred to as "E-101 Kai".

As a Flicky
When E-101 Beta was destroyed, a mint gray Flicky with red eyes emerged from the robotic armor sealing him inside. After Gamma's story, he flew off with Gamma's Flicky. He also appeared in Amy Rose's story in "Birdie's" pendant showing Gamma and Beta as Flickies.

Trivia

 * Beta is mentioned in Sonic Heroes, when Team Dark gets an E -Rank Omega would occasionally say "I couldn't even beat Gamma or Beta."
 * It is assumed that Beta's discarded rocket arms were used on Delta.

Miscellaneous
E-101 Beta can become a playable character in Sonic Adventure DX. But the only way to play him is to hack the game. Beta can only be played in version one, not version two or three.