Play Sonic: Hidden Palace Adventure emulator game online in the highest quality available. Sonic: Hidden Palace Adventure is a Sega Genesis game that you can enjoy on Play Emulator. This SEGA game is the US English version that works in all modern web browsers without downloading. Sonic: Hidden Palace Adventure is part of the Sonic Games, Arcade Games, and Platform Games you can play here. PlayEmulator has many online retro games available including related games like Sonic: The Lost Land 2, Sonic the Hedgehog: Pocket Adventure, and Sonic: Virtual Adventure.