Just because a sequel uses the same formula as its predecessor, it doesn't mean that it's the same movie. If you like these characters and the general idea, you're going to love it's more deranged second entry. What is most important for a comedy is the actual comedy; which is just as effective, if not more so than the original. Shenanigans don't even come close to the bizarre and demented occurrences that the Wolfpack experience. The level of destruction that occurs is so hilarious that you can't even explain it in words. I think the chemistry between Bradley Cooper, Zach Galifianakis and Ed Helms has only gotten stronger in the two years since the first. Pretty much any joke attempted had me laughing really hard and this movie accomplishes everything it sets out to do. It really is extremely fun and in my opinion matches up to the reputation it etablished the first time around. Anyone who complains about this has only themselves to blame because you should know exactly what you're getting into from the previews and interviews. I honestly don't think you could call it The Hangover if it wasn't about a bunch of guys getting messed up and not remembering the night before.