Well, that was...unexpected. I don't think one scene counts as a re-animated bit. Then again, it wasn't said to be a collab. The text was hard to read. I really couldn't get into it because of that. Still, it's nice to see Chiyo.
It needed to be longer. It works better as part of well, a collab. I've read all of "Azumanga Daioh". I never really watched the anime, though. Violence can be funny.