Honestly, the only issues I have with the game are quality of life things, such as text/UI, feedback, information (like how often I can dodge/how much damage I do)... The game itself is very fun, I love the StS like progression system, always a winner, love the roguelite building of your layout, I didn't expect real time action as the gameplay since you don't usually see that with this type of branching progression which felt pretty fresh. I think you did a really good job and there's room to grow this, and by this I mean not just adding more bullet types but I think there's more depth to be explored, whether it comes from movement, progression or something else.
One small thing, I don't know if it's just me but during the boss fight when they shoot a bunch of projectiles it made my game lag.