The skulls have taken over: let the bloodfalls rain on your desktop screen.
This image is only a static preview of actual animated wallpaper: it really does not do it justice.
To see all animations, download the file, then click on the downloaded wallpaper icon - the installation program will show a preview with all animations before you install the wallpaper. Enjoy!
Free Halloween animated wallpaper by GhostlyHalloween.com