The Mechanical Arm is one of the multiple robot machines that the Mad Doctor had created and the first boss in the Epic Mickey video game. He appears as a minor player in the Disney Villains War 2 and in Animated vs Video Game Villains War tournament.
Disney Villains War 2
Knock Knock, Here Comes The Robot
During the final stages of the Multiverse War, the Mad Doctor, along with his new master, Jafar, make their way to the World That Never Was and encounter Maleficent's allies and the rest of the Organization XIII members. When the Mad Doctor meets the bully cat, Pete, and the berserker nobody, Saix, he activates the Mechanical Arm so that it will take down his rivals. While it was able to knock out Pete, it was no match against the Luna Diviner's powers, who used his weapon to destroy the machine once and for all. After that, the Mad Doctor quits and escapes the battlefield, seeing that he has no power over his enemies.
Disney Vs Anime Villains War - Part Two
Denying Dr. Cortex's offer for an alliance, the Mad Doctor activates the Mechanical Arm to finish off his enemy. Upon reaching him, Dr. Cortex pulls out a motive controller, that might control the robot. However, it goes worse, as it reveals a chainsaw, that knocks off Cortex from his feet.