Two different demos have been released for Sly Cooper and the Thievius Raccoonus.
This demo contains of playthrough of Raleigh's level. All missions here had alternate titles during development, but were changed in the final release.
There is a PlayStation 2 demo disc that contains only the first half of the Prologue. It was released exclusively for the 2002 Electronic Entertainment Expo. This demo features the early version of Carmelita Fox, who was originally known as Chase.