Wow, thanks you for coming back to try to clear my game, it makes me happy haha ^^
It can be hard, I think the only advice I could give is that the start of the 1st “break” between phases is that moving in little circles can help to clear that phase or using all the bombs if you didn’t use any, once you get to the vortex part, being in the corner and going slow makes it easy, the second phase it’s more of patience and sometimes going diagonally, the 3rd phase try to be under the boss the most you can
Since I didn’t make the green bullets as I should, it becomes slower and more risky than it should be. I'll fix that after the jam if I don’t join another one in a few days haha
Thanks for playing and sharing your comment! :)