Wow, this game has a really tasteful and effective presentation. The visual animations and feedback is top notch, the music and sfx work perfectly. Laid back but certainly not for the faint of heart ;) !
I really appreciate how subtle everything is and usually that works to the game's advantage. I wonder if the enemies that shoot 3 shots vs those that shoot one could have more to distinguish them (I believe currently there is just an extra little dot on their sprite) which makes it difficult to target the biggest threat at a quick glance. Though maybe that's intentional! It certainly makes everything look uniform in a way that is clean.
Similarly, I wonder if the powerups could be tuned a bit more in favour to the player, as the longest I made it was just under 3 minutes, and I never felt overpowered hah. I do really appreciate the powerups though, the ricochet effect for example feels juicy and satisfying to watch. I also wonder if there could be a bit more of a UI or indication of when the round is going to end?
All in all though, really impressive work. Great job!