The Stealth Achievements are three Achievements a player can accomplish in Audiosurf. They are gained by getting the Stealth bonus using Ninja Mono on a song of a certain length. There are three Stealth Achievements: * Image:Stealth adept.JPG Stealth Adept: Using Ninja Mono, earn Stealth. 3 minute minimum. * Image:Stealth master.JPG Stealth Master: Using Ninja Mono, earn Stealth. 7 minute minimum. * Image:Stealth legend.JPG Stealth Legend: Using Ninja Mono, earn Stealth. 11 minute minimum.