Good concept and well executed.
I wish holding movement keys would register, instead of having to constantly press in a single direction.
I think maybe the game would have been even more fun if the dice went through enemies to hit all of them, instead of bouncing all over the place. One time around the start, my dice happened to fly smoothly, hitting multiple enemies and landing on a 6, killing them all and feeling very satisfying.
When I tried doing it again in the final room, the dice flew all over the place, maybe hitting 2 enemies, even when there were so many of them.
Still, this was very enjoyable. Great job on your game!