Mickey Mouse: Disney Animated Shorts

Mickey's Mechanical Man (1x59)

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Mickey's built a robot named Champ who's going to win Mickey a prize by fighting Beppo the Gorilla, the Kongo Killer, in a boxing ring. The robot only works in fits and starts, though, so things look grim for a while. Luckily, Minnie resuscitates Champ by honking her car horn at him.