As not a huge tower defense fan generally, I think this was really enjoyable due to multiple clever mechanics going on.
The fact that you could move the pieces around fits the theme well and adds a lot more strategy than you'd normally have in a TD game. And because moving them also "rolled" them, you were able to see all the different types of attacks really rapidly.
At first I thought the throwing was a bit annoying in that it was hard to place, but once I got a hang of it, and realized that you could make some really satisfying bank shots (especially nice when you got it to bounce between the top wall and enemies in the top row). And the fact that you could bounce it off other dice made it even more interesting.
I do wish I could have gotten coins a bit more easily, as I would have loved to get to that point where the screen is just going crazy with attacks and the enemies are melting, but balance like that can be really tricky in jam games.
Art and audio was also really crisp. Great job!