The visuals, sounds, and gameplay are polished. Just a few suggestions though.
When rolling the dice, it's much more exciting if it's just one tap to make them all roll, like a slot machine. The buffs/debuffs are hard to notice during the game. Instead of this, I think random powerups would be much more fun. It would be interesting to see how both the players and the enemies using powerups plays out. You could also just make the buff/debuff a lot more impactful, to the extent of being crucial to the player's chances at winning, making for a very challenging gameplay. On the other hand, there is a bug where as the enemies shrink, bullets can still come out of them, which is a little frustrating. No pressure though, the game is already impressive! With just some tweaks, I can see it becoming really addictive.