One of the most creative games I've played in this jam. The gameplay is really fun, especially due to the fact that you have to constantly be paying attention not only on the enemies that are at the top, but also keep an eye out on what dice of ammo you are standing on and how much you have left to shoot.
My only criticism would be the fact that some sound effects were really louder than other ones, e.g the explosion sound of the rockets. Other than that, however, I think this mechanic that you guys came up with can definitely be explored even further, and has lots of potential!