Thank you for your feedback!
The controls really are a little chaotic to pick up, and I'll try to remember to keep controls a lot more easy to use in the future. I really appreciate your comment on the cameras and can see how the projectile could cover up too much of the screen with the current camera position. The game in itself, is pretty fast-paced and chaotic, and maybe a bit too much so which can cause unnecessary confusion and unwanted chaos. I really like your idea with only having sound for temporary upgrades, I personally think that if I had more, then I would be able to do that and just have silent sounds for the permanent upgrades. I'll definitely increase the music/ambience sound since the projectile sounds are really pretty loud when compared to the music. I'll definitely try to first pick a color scheme in the future, I didn't think about it at all when I was creating this game and I'll definitely try it in my next game jam. Good luck to your submission and I'll check it out as soon as I have time to.