Scare the s*** out of people with this "screamer" prank app!
This application pretends to be a "skill test": Navigate a silver marble through a wooden maze using the device's tilt sensor. Run the app, give it to someone you'd like to scare, and tell them you don't think they can finish all 3 levels. While your "victim" is playing, in the middle of level 3, a grotesque face suddenly and unexpectedly appears, together with a loud and scary scream. -- Scaring people has never been funner!