Instructions
Stand with your dominant foot back and your dominant hand slightly beneath your chin. This puts you in the position to throw a right or left cross.
Throw a straight punch. Since the speed bag can only move in one direction, any power you have that does not directly push the speed bag back is wasted.
Aim to hit the bag directly in the middle. Any power that is not directed into the middle of the speed bag is wasted. Remember, the goal is to punch the speed bag straight into the sensor that is in the ceiling of the arcade game--any energy that doesn't accomplish this goal is useless.