Don't let the name fool you. Like its predecessors, you can hit the ball with a variety of spins in Top Spin 3 - not just topspin. To swing, hold down just about any face button to take a backswing (X, Y, A and B correspond with a slice, lob, hitting left, and flat shots) and release to swing at the ball. The right trigger adds power, and the left trigger will aim for the line. You can combine types of shots, but you might want to make sure you're playing as Roddick before you try to put too much on the ball.