This is really fun, and a neat idea. The art looks good, the music works well and the mechanics are solid. I enjoyed the boss on level 2. Got some Binding of Isaac vibes, not sure if that's what you were going for but the theme is great. I didn't realise the gates had the same symbol on them as the dice, I just shot the first one till it opened, then realised on the second one. 😅
If you have time, I'd love it if you could have a look at my game too.