Arukoitan

Arukoitan (アルコイタン) is a bipedal Reaverbot from the Mega Man Legends series that only appears on Kattelox Island and Ryship Island, being common in the Underground Ruins and Sub-Cities. They are mobile and can attack with fireballs or kick the target if the latter is in very close range. The Arukoitan is often paired with an Orudakoitan, which transmits orders to Arukoitan. If the Orudakoitan is destroyed, the Arukoitan will cease functioning and just stand still, however, the Refractors it yields upon destruction is far less than if they aren't disabled. Not all Arukoitans are paired up with an Orudakoitan and vice-versa.

In The Misadventures of Tron Bonne there is also one fast pink/purple Arukoitan called the Koltkoitan (コルトコイタン) controlling a group of invincible slow green Arukoitans called Jeepkoitans (ジープコイタン) that are the guardians of the Yellow Aurora Stone in the Shala-Kun Ruins. There is only one normal Arukoitan with a Orudakoitan in Shala-kun Ruins, and it attack with flames instead of fireballs.

Trivia

 * Arukoitan was one of the Reaverbots chosen to return in Mega Man Legends 3 before its cancellation.