The Steamboat Willie version of Mickey Mouse features a classic black-and-white design with a round head and circular ears. His body is black, while his face is white. Mickey wears white shorts with two white buttons and oversized white shoes. He has small, black dots for eyes, and he has a round nose and wide smile. The animation style is bouncy and rubber hose style, typical of early cartoons, showcasing slapstick humor and physical comedy, capturing the charm of the 1920s silent film era.