Arachbot

Arachbot, or Arach-Bot, is a character who made its only appearance in the fifth issue of Sonic the Comic.

Arachbot was an eight-legged Badnik that resembled a spider (hence its name), although its legs seemed more like the tentacles of an octopus.

Lost in the Labyrinth Zone
Arachbot was the leader of the Badniks in the Labyrinth Zone, a vast network of underground tunnels that they have recently constructed under half of planet Mobius. It was a Prime Badnik, meaning that it was a pure robot without an organic battery inside its metallic casing.

Arachbot kidnapped Tails in the Green Hill Zone and dragged him underground into the Labyrinth Zone. He was accompanied on this mission by a pair of Aquis Badniks. On Doctor Robotnik's orders, Arachbot intended to turn Tails into a Badnik by re-inserting him into his old Robofox exoskeleton (although Arachbot claimed that he would prefer to simply kill Tails).

Sonic and his friends followed Arachbot. Arachbot was destroyed when Sonic covered it in oil and set it alight.