Thank you for your comment! 🙂
I am glad you enjoyed the little story bit at the beginning!
Regarding the hitboxes, I was planning to add some more visual and audio feedback for mana recovery and damage, to make it easier to tell where the hitboxes are, because when the player is paying attention to dodging bullets, they will not be looking at the health/mana bar. Unfortunately I did not have time for this in the jam, but this is definitely something I would like to improve.
I am also glad you liked the snake pattern, that one was a bit of a surprise for me as well: All of the patterns you see in the game are driven by mathematical formulas, I was quite surprised when a pretty simple formula got me such a cool looking and pattern that was so satisfying to dodge and siphon mana from. I wanted to put it on the last phase just because of how cool it was 😉