Mickey Mouse - Great Circus Mystery ROM Download can be obtained free for Sega Genesis on EmuGames.net only. Play emulator game in English for the USA region. Mickey Mouse Great Circus Mystery is a Sega ROM that you can download to your computer or play online within your browser. You can also download roms such as Mickey Mania and Mickey Mouse World Of Illusion that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.