Rolling cat LiveWallpaper04

people keep asking me where I got the kitty from.

Unlike other wallpapers I continue to come back, it never gets old! Would it be possible to draw/mark a certain area of the background as the only space the cat interacts in? For instance: I have a living room picture set up as the background, however the effect gets ruined every time it goes in front of a foreground element. I'd also appreciate it if the cats size dynamically changed in size when put into landscape orientation as the effect is ruined when it changes orientation and sizes as a result.