Tom - although he had to become a mouse to get it. Tom has amnesia and believes he's a mouse. Jerry, finding him more obnoxious as a fellow rodent than as a cat, seeks to cure him with a blow to the head. At the end, he finally succeeds, but Mammy Two-Shoes, not realizing he is already cured, delivers her own blow to his head with a baseball bat. Tom turns back into a mouse and squeezes himself into Jerry's mouse hole. In the last shot, he lies down on Jerry's bed and breaks it.