This trick begins with a Kickflip, turning the rider's body in the air to catch the board with the back foot on the nose, pivoting 180 degrees on the front wheels before the back wheels hit the ground. It was invented by Matt Barden in 1980. Many variations have been developed, including a Nose M-80 (which omits the body varial and lands the front foot on the nose), fakie and double flip versions.
