Instructions
Press and hold "L2" and "R2" simultaneously on the PlayStation 3 controller.
Hold the left or right analog stick in the opposite direction of the person or object you wish to punch while continuing to hold "L2" and "R2." The left analog stick controls your left arm, the right analog stick controls your right arm.
Press the analog stick quickly in the direction of the person or object to have Sackboy punch whatever is in front of him.