Thanks so much for playing and commenting :)
It's true that the boss fish is complicated in a lot of ways, and the little bubbles make it really hard. If I do a post-jam update, I'll probably reconsider their size (or make them harmless when they get too small).
I'm glad you liked the warning text :D Testing my game so much was really starting to tire my eyes. It requires a lot of concentration. And as my game engine (Construct 3) regularly sends me a message to encourage me to take breaks, I thought it was a good idea and that I had every reason to include it in my game :)
Thanks again for your comment ❤