Great little game. Needs to be improved.
Okay...here's the thing. It's a very good effort. The filter that you did with the graphics is spot on, and the musics great and also the fact that you created different modes of play is cool.
Some things that could be updated, is the computer player could be a lot more difficult, or have varying levels of difficulty. Try making is so that the speed off the ball goes a little faster after each time it has a colision. I understand it goes a different speed depending on where the ball hits the paddle. There's also an issue I found with paddle collision: Even though I hit it on the edge it went in front of me just for a sec, then it went behind me making me lose a point!
You should repost this with the improvements made!