Play Wonder Boy emulator game online in the highest quality available. Wonder Boy is a Sega Master System game that you can enjoy on Play Emulator. This Sega Master game is the US English version that works in all modern web browsers without downloading. Wonder Boy is part of the Arcade Games, Adventure Games, and Platform Games you can play here. PlayEmulator has many online retro games available including related games like Wonder Boy In Monster Land, Wonder Boy in Monster World, and Wonder Boy III: The Dragon's Trap.