Pros:
When there's something strange, in your OS, who you gonna call? Ghostbusters! Dude®, the theme author has really done it this time by releasing those little slimy creatures all over your desktop. It's all or nothing. A slime screensaver, animated startup logo and shutdown logos, animated cursors, high color icons, and two theme files for two different wallpaper settings. One of the wallpaper files is just a small bitmap that's cut to title nicely across any size desktop. Naturally, the other wallpaper is best on an 800x600 display size.

Cons:
Maybe do away with the "He slimmed me" sound file or relocate it.

Overall:
Great work!