Play Mickey's Ultimate Challenge emulator game online in the highest quality available. Mickey's Ultimate Challenge is a Sega Game Gear game that you can enjoy on Play Emulator. This Game Gear game is the US English version that works in all modern web browsers without downloading. Mickey's Ultimate Challenge is part of the Arcade Games, Adventure Games, and Action Games you can play here. PlayEmulator has many online retro games available including related games like Mickey's Speedway USA, Mickey's Speedway USA, and Mickey's Racing Adventure.