Gonzo appears on the rooftop as Charles Dickens from the Muppet Christmas Carol for a limited time
"No feat is too daunting, no trick too tricky, no stunt too stupid for Gonzo the Great. The Muppets' resident daredevil and performance artiste, Gonzo believes his ludicrous, borderline crazy antics are the highest form of art. He may not be right, but he sure is fun to watch. And his equally bizarre musical talents make him fun to listen to, too."
Every Muppet has different things that they like. For every unique object that they like that's placed on the stage, the Muppets's happiness will increase by one (in other words, placing two of the same liked item will still only increase happiness by one ).