If you tap shoot with the laser it shoots indefinitely until you press again which seems like unintended behavior because hold to fire exists.
Spamming rapidfire with the original gun seemed to be the best dps option, which probably isn't what you want in a roguelite. my projectiles can also kill enemy projectiles.
The ring moves in a jerky manner which can be improved. enemy tuning is out of what, mostly the rockets I guess.
When the boss spawns it's annoying being a janny and having to handle the small guys because otherwise they hit me and shrink the ring. I probably did twice as much damage to enemies than the boss after it spawned. Does boss damage expand the ring? I think it should. or have it stay large for 30 seconds or something.
I didn't really see what the enemies are supposed to be other than the boss, the game is hectic and they are small. I wonder if a larger size on everything would make sense. That includes the ring, you could make it shrink at a faster pace and go much larger on every kill, having a bigger visual effect/stress, without actually altering its progression rate, as long as you kill stuff. larger enemies means an easier time hitting them, faster rate of kills, faster rate of spawns, more fun.
Enemies don't feel interesting, they always aim perfectly or path directly toward you, and rockets should probably home in less and explode after missing you/lose tracking and then hit something else.