Atom Smasher

From YoYo Wiki

Begin with a split bottom mount.Take the yo yo and do an underpass. Your yo yo hand should be in the front.Take your free hand and move it into the double string.The hands should now be switched.Move your yo yo hand down and under the yo yo,making the yo yo do an underpass.Now flip the yo yo in a somersault (like a Braintwister) one or more times.Dismount by using a Braintwister dismount.