12 Clusterfucks of Christmas Fun Facts Guitar Hero Christmas custom song. The download includes the “Clusterfuck” Edition (insane chart), and the “Fun” Edition (moderate chart). Download Schmutz062016-10-13T16:22:28+01:00June 20th, 2016|2011, Difficulty - Extreme, Difficulty - Hard, Duration - Long|0 Comments share this page FacebookTwitterReddit Leave A Comment Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.