I just finished my playthrough. I tried to do EVERYTHING. I even went back to each town, to talk to everyone, after meteor was summoned. Including things others found, it seems like there were less than 10 errors. Impressive.
I'm keeping my save file at the end of the game, so I can watch the retranslated ending, when it's released. Will the videos be viewable outside of the game (as separate files), or will they be embedded in an executable? I'd like to be able to go back and watch the ones I missed...