Things you should fix:
1. Don't call it ancient pong because nothing ancient about it.
2. Make the top bar centered, it's currently uneven.
3. CPU doesn't move, definitely fix that.
4. Make an instructions button to go to a frame that shows the instructions.
One tip, increase the frame rate and slow down the speed of the ball then should be better. Try my pong game at: http://www.kongregate.com/games/Hagefade/hagefade-pong-version-3
Pretty good, maybe try and change the colours from just being black and white. Try my pong game at: http://www.kongregate.com/games/Hagefade/hagefade-pong-version-3
Try adding a menu and different difficulties. Other than that it's pretty good. Try my pong game at: http://www.kongregate.com/games/Hagefade/hagefade-pong-version-3