Lunarbot

The Lunarbot is a character that appears in the Sonic X comic series published by Archie Comics. It is a mind-controlling robot created by Dr. Eggman that took control of Christopher Thorndyke.

Appearance
The Lunarbot is a large, humanoid grey robot with missile launchers for hands. It's overall body, limbs and head included, is very rectangular in shape.

Archie Comics
The Lunarbot was one of the many robots that took control of Sonic's various friends and allies, namely taking control of Chris.

While Sonic and his allies initially struggled to take down the Lunarbot and the other mind-controlling robots due to being unable to go all out because of their friends being inside them, they were able to to turn they tide of battle around when Chris managed to resist the control of the Lunnarbot and instead used it to take down Eggman.

Powers and abilities
The Lunarbot is capable of trapping a human inside itself and taking control of said person's mind. It also has missile launchers as hands and can electrocute opponents by discharging electricity.