I like the idea of this, but as others already pointed out currently the levels are a bit frustrating. Mostly it doesn't feel like it's my fault when I die, however removing the randomness from the particle systems would probably already help with that. Also maybe instead of making the die a cosmetical element, you could use the "sidedness" of a dice to lean into the theme a bit more. For example a three sided dice has a larger area but may only block up to 3 projectiles, etc. I think there is a lot of potential in this!