I’ve just submitted another game, this time it’s a breakout clone.
JNLP: http://javaunlimited.net/games/launch.php?type=jnlp&id=134
Homepage: http://ulf.ofahrt.de/breakout4k/
It’s not finished yet, though, so any feedback is welcome.
(It doesn’t show points or lives right now. Yes I know that. 
Feels solid, and the sphere/sphere collision is a nice twist.
But there doesn’t seem to be any way to affect the motion of the ball once it has been launched, which is kinda frustrating.
Agree with Markus.
Would be great to convert the bat to a sphere or an arch Would be cool if the spheres were moving a bit. The solid sphere collision really improves the game.
Look forward to see how it evolves!