Thank you for playing and thank you for the feedback!
First, I want to let you know that there is a 0 weapon win state. I'll just say that there is another way to do damage (check the powerup/disruptor select screen).
Glad you enjoyed the game!! It was my first attempt at a shmup outside of a "my first game" tutorial, so I'm happy you liked the patterns and nice idea with your Pong clone as well for the notes=bullets ^^
I let a constant BGM slide this time in favor of letting weapons exclusively "generate" the soundtrack, but more fleshed out music would be nice in the future so it doesn't get stale--I appreciate the feedback!