E-106 Eta is a vaguely humanoid green robot with a trashcan-like head. On top of its head is a lid with a black surface and yellow lower rim, and on the bottom of its head is a red stribe. Situated on the bottom of its head up front is a black face section with two red eyes, and extending out in front of E-106 Eta's face is a golden handlebar. On the sides of its head, next to its face, it also has two black bars for shoulders. Attached to these bars are its arms, which have thick green and red forearm armor and mitten-like black hands. Its lower body consists of two stubby rocket trusters attached on the sides of its hips. These thrusters are red on the top and have black exhausts on the bottom. It also has a gray/red flap covering its pelvis. This pelvis plate has a black upper and lower rim, and a golden handlebar with a black grip attached to its bottom. Lastly, it has "E-106 η" written on the side of its head.
Powers and abilities
E-106 Eta is capable of hovering using built-in propulsion units, which serve as its main method of locomotion.
- E-106 Eta greatly resembles ZERO (also known as E-100 Alpha) physically, a robot that originated from Sonic Adventure.
- E-106 Eta's existence was first introduced in the Archie Comics continuity where it was first confirmed to exist through an entry on an official Archie Comics Sonic comic blog along with other previously-unheard of robots in the E-100 Series. It would later make a physical appearance after its reboot within the Archie Comics continuity where it appeared closer in design to its E-100 series predecessors.