Play Wonder Boy in Monster World online in your browser and enjoy with Emulator Games Online! Wonder Boy in Monster World is SEGA game USA region version that you can play free on our site. This game has adventure, arcade, action, platform genres for Sega console and is one of a series of Wonder Boy games. If you love Wonder Boy games you can also find other games on our site with Retro Games. Below you will find control for the emulator to play Wonder Boy in Monster World.