PsychoPong is not new, as it dates back to 2001; yet it is a worthy game just the same. With gameplay similar to Pong, the granddaddy of all video games, this Shockwave game has a mind of its own. There are five (5) levels of increasing difficulty... though I bet you'll have trouble making it past even the second level.
The designer of the game, Andreas from Switzerland, has an amazing site full of Shockwave experiments worth checking out. The 'P'rojects navigation menu of his site is worth the visit alone.