"Sudden Death", "New World Order", "Black Swan" and "Millennium of the Blind" were released previously in different or incomplete versions, and were included as bonus tracks on previous albums or used for other projects.
According to Ellefson, "Millennium of the Blind" was originally written in 1991 and a demo was recorded,[REF] and a version of the song would later be included as a bonus track on the 2004 remix/remaster of Youthanasia.