Your objective in Curveball is to beat the computer opponent in a 3d style pong game. In each level you have to beat the computer three times to progress to the next level. You have only five lives so be careful while playing. Click the mouse on the ball to start playing and then move your mouse to send the ball back to your opponent using the paddle. Earn bonus points for accuracy and curves. In first few levels the computer will be sloppy but in the later levels you have to play great to beat the computer.