I've checked the game and the first thing i've noticed was the lack of tutorial ingame. Try to always treat the page and game as separete things and try to include a tutorial/keymap ingame, because you can always edit the page later after sending the submission (usually you can, for the jams i've joined, at least).
The other thing would be the lack of sound or sound effects unless something bugged, sicne i had a load issue earlier today with a Unity game, but i'm guessing that would be due to the tight time of the game jam.
Cheers, it is a cool idea, I'll check back later and try again. :D