WWE Rey Mysterio - 619

Hidden Commercial:
To see a Smackdown! commercial featuring Rey Mysterio, select the "extras" option from the main menu.  Highlight one of the first seven matches and press left.

Rey Talking About His Entrance Music:
To see a hidden clip of Rey Mysterio, select the "Jump To It" option on the main menu and then highlight "Who's That?" option and press left to view the clip.