As much fun as you have playing the Order of the Stick Adventure, sometimes you just don't have four+ hours to do it. The Shortening expansion adds in lots of new cards and rules designed to reduce the amount of time it will take to clobber Xykon. Secret Backstories give each character his own objectives in the dungeon, and the Wandering Xykon rules let Xykon stretch his legs, and bring the battle up to the players.