Tom finally figured out what was wrong on their side with uploads, so I've managed to update Muu to the newest version. Be sure to check the Mute function when some music is playing (Hit M), if it won't mute, it's the wrong version and you'll have to force a browser refresh.

I've submitted a version of Muu: Just Another Day to Newgrounds, that includes medals and a scoreboard for least-number-of-deaths, but there is apparently a problem with the submission system at the moment. Tom Fulp assures me they're looking into it. Please be patient.