Wow this was super crazy. Quite chaotic to understand what is going on at first.
The visuals are amazing and I wish the audio accompanied the vibe. Also, nice touch on the game over animation, really neat.
I couldn't make it much further in the game as sometimes enemies just took me outside the screen and I couldn't react. It also took me a while to understand my shooting, I wish there was some sort of particle effect to see I was firing. Maybe also allowing the player to just hold fire instead of clicking.
One bug I found was that once I resized the screen to small as possible, killing all enemies (yeah!), I couldn't scale it back up. For some reason as soon as I clicked to drag the size it just went with the current size, and no enemy spawned anymore.
Overall a very nice bullet hell, the screen resizing was a great touch.