The Great Circus Mystery starring Mickey & Minnie

Starring Mickey and Minnie Mouse, the two plan to spend the day at the Circus only to find that it's deserted. Believing that someone is responsible, you must dress up in different outfits such as Safari and Western, as you try to find clues to solve the mystery behind the disappearance of the performers, including your pals Donald Duck and Pluto. (mobygames.com)