A hellishly difficult but fun game! I can definitely see the art inspiration from Baba is You and other such games.
I found issues where the AI could get stuck between walls making them sitting ducks, as well as a very rare edge case where the daggers would just continually bounce perpendicular between two walls making a "ping" noise pretty much constantly. Perhaps a way to avoid that would be for the daggers to degrade/break after a certain number of hits?
All in all, really good work. It's a shame the web version is broken but that's game jams for you! Well done.