This free screensaver is pretty basic but very effective. Set it running and you're presented with a synchronised display of 32 bouncing balls organised in formations of eight.

These formations emerge from the centre of the screen and scroll outwards towards the edges of the screen in single file.

Once they hit the screens edge they bounce off in all directions, resulting in a kaleidoscope of patterns.

This is all there is to it, apart from the option to mute the sound. However, we couldn't hear any sound when it wasn't muted. This detracts little from the experience though.