A ball with a hollow inner core filled approximately 50% or less by volume with a fluid (which can include metallic spheres), a ball shell and struts (six or more) attached to the core and connected to an inner surface of the ball in such a way so as to maintain the core at the center of the ball. A swirling motion of the fluid within the hollow inner core determines the motion of the ball and a direction of travel away from a point of contact at which a force is applied to the ball to cause it to move or change direction. The direction of travel of the ball will be to the right when a counterclockwise spin is applied to the ball at the point of contact, the direction of travel of the ball will be to the left when it a clockwise spin is applied to the ball at the point of contact, and the direction of travel of the ball will be straight when a top spin is applied to ball at the point of contact. The weight ratio of the fluid to the ball without the fluid is approximately 1:1 or greater.