Motion activated fart sounds 10 realistic fart sounds! Launch a fart attack! Download the app for virtual pranks! Collect them all! Surprise and disgust your friends with fart sounds when they least expect it! Hide your Fart Ninja figure and launch a fart attack. This ninja clan has 8 characters with 10 realistic fart sounds activated by a motion sensor. These stealthy ninjas really let em' rip! Fart Ninjas, "Silent, Butt Deadly". For Ages 5+.