First, which version would you like?
Download Catz demo foolers above.
And if you want more sounds for the Windows version, click here.
Mac users, note that the Mac fooler is a large download, over 5 megabytes. If you download the .sit file and get gibberish appearing in your browser, ending up with a corrupted file when you try to save it, try either downloading with a download manager or look in your browser's cache and copy it directly from there. The copy that's in your cache should not be corrupted.