Hey RuV! Tried the game, love the visual style and sounds. Really feels like an arcade game.
Text during the boss fight is both too small and hard to read while dodging so many bullets.
In stage 2, the off-screen enemies keep shooting, but I don't think that's your fault. I brought it up to Suny in the discord. I notice it in my game now too.
But very promising work here! Keep it up!