I’m a huge shmup fan, so I had a lot of fun with this!
The patterns were well done, graphics were clean, and I liked the notes playing for bullets. Funny enough, I did that for one of my first game jams years ago for a Pong clone haha!
The different weapon upgrades were a good use of the theme and also the disruptor preventing different enemies. I do wish there was some music though. You can actually make it work with the bullets by making the bullet notes the same key as the background music.
In addition, I beat the mission 3 times, but now it’ll let me play with zero weapons. Is there a secret way to beat the enemies with no weapons? If it’s impossible, I’d suggest putting a game win screen or something similar to let the player know that they won.
Overall though, great shmup, had a fun couple minutes beating it!