I noticed, in the end scene, when they say "Hooray!" a banner comes down from the top. It is written in the same script as the other words in the book. I also noticed that it does say a garbled "HOORAY", with the font being the only thing that's different. Upon inspecting the level select book, it had recognizable words in that font. I would do a complete transcription, but my phone has a tiny screen, and so many of the letters are as of yet unrecognizable to me. If anybody has a tablet, or a Samsung Mega (those things are frickin huge!), and has the time, energy, and patience for it mayhaps should shed some light on what sort of things are in the book.