Just a correction regarding this bit about finding Oogie Boogie in HMH: "The PDF is only available online, and the game is not even mentioned at the attraction itself (so make sure to bring the print-out with you)." They are (or at least were) handing out printouts of that file at the park. There is also mention of the game in the queue area, though it's not exactly jumping out at you. When you're in the queue just past the front gates, there's a banner hanging on the right. That banner mentions the game and has the clues, though not the hints, I think. It's the same kind of banners where they've printed the lyrics for the scarols.