Looks way better than what I played in the jam, but it is now difficult to see enemies after hitting them once (when they turn black), especially on darker sides of the die. Not sure how you have the lighting set up, but it may be caused by the direction/intensity of the lights on some faces.
Enemy spawn rate vs gun fire rate feels unbalanced, maybe tone down the rates on the sides with more pips or just increase the base fire rates. Love the powerups, I just think the basic weapon needs better juice.
I'd like more player involvement in the dice rolling, as is it feels very random. I don't think it needs to be entirely player controlled but maybe if it were more tied to killing enemies, or at least had an on screen timer of some sort to let you know when it will rotate.