Thanks for playing and for the feedback!
I originally implemented matching on the sides (pips) for the bullets to hit, and had a rolling mechanic for shuffling which bullet the player shot - the shuffle animation is still in there if you right-click (but it’s useless now)
I think if i were doing it again i’d go for a dice-gun that let the player control the probabilities of the gun’s output dice, and have that evolve with some variants (an odds-gun, an evens-gun, a less-than-three-gun, etc), then stick with the matching over the subtracting.