Play Ben 10: Protector of the Earth emulator game online in the highest quality available. Ben 10: Protector of the Earth is a Nintendo DS game that you can enjoy on Play Emulator. This NDS game is the US English version that works in all modern web browsers without downloading. Ben 10: Protector of the Earth 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 Avatar - The Last Airbender, Avatar: The Last Air Bender, and The Last Airbender: The Burning Earth.