Couldn't run it:

Cool!  Works great.  Vista.  JRE 1.6.

Couldn't get past stage 1, but got close!

A few little tweaklets:- it's a lot easier to play now, but still quite tough!

I'm not sure it's quite right yet - I think I need to work on the collision detection (esp. on the serve).

Just a thought Appel, while you're here, how about allowing entrants to submit a playable jar (<4096 bytes for the judges) but also having the option to submit an applet (which can be >4095 but must have identical gameplay). I suggest this as I think casual visitors to Java4K would be more likely to play the games if they were applets. Webstart can be a bit of a security popup nightmare!

Cool 3D effects, but this game is just way too difficult.  I have no sense of depth; I can’t tell where the ball is in relation to the paddle.  I also can’t seem to swing the paddle properly with the mouse.  The ball also seems to move really slowly compared to real ping pong or even compared to Pong.