Halloween Bats Screensaver is a spooky, yet simple screensaver to set the mood this Halloween.Settings are simple allowing you to mute the sound or use multiple monitors. We didn't hear any sound during our tests, however.The screensaver itself isn't complicated, but it is very cool looking. It features an outdoor setting with some houses, a full moon, clouds and an old tree as the background while bats fly through. The clouds do move as well, but the loop is a bit short and has a gap that makes it obvious the bats are looping every 6 seconds or so. Still, it's a nice mood setter for Halloween.