The Belly launcher is Sumo Santa's projectile in ClayFighter 63 1/3 and ClayFighter: Sculptor's Cut. He takes a present from out of nowhere and slams it with his stomach, sending it at his opponent. This attack requires a quarter circle, which means you have to put your thumb on the down direction of the control pad, then quickly slide your thumb to the forward direction or the backwards direction. Then you have to press the button required to make the move work. In this case, you have to press down forward punch (any strength will do) in order to use this attack.