Play Ben 10 Ultimate Alien: Cosmic Destruction emulator game online in the highest quality available. Ben 10 Ultimate Alien: Cosmic Destruction 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 Ultimate Alien: Cosmic Destruction is part of the Adventure Games, Action Games, and Anime 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.