Prescott's Mech

Prescott's Mech is the second boss encountered by Oswald and Mickey in the video game Epic Mickey 2: The Power of Two. Encountered in the Floatyard, the Mech was created by Gremlin Prescott as a means of payback for having his "brilliance" wasted at the Gag Factory in OsTown. Prescott had possibly been working on this mechanical monster prior to the events of the game.

Epic Mickey 2
When Mickey, Oswald and Gremlin Gus bypass Prescott's defenses and catch up to him, the gremlin lets on about his plan for revenge. A gigantic cannon (which looks like Mickey as he appears in Steamboat Willie) emerges from the center of the arena. The cannon launches fiery cannonballs and Thinner grenades, and has an electrical force field at its base. During the time it takes the cannon to reload, Mickey must fill its tanks with Thinner or Paint. Once the tanks are filled, Oswald can reprogram the console with his Remote. Upon defeating the cannon, it becomes clear that Mickey and Oswald have been inside Prescott's Mech all along, and the gremlin declares that the true battle has begun.