Thanks for enjoying my game.
This is not the first project I experiment the Quintuple jump 3D bullet game system. And I am still adjusting the difficulty. In some playtests in the past, I see some player cannot handle 3d bullets quite well, or can't adopt the jumping. Therefore in this submission, I made 3 easy boss patterns so even non-3d-bullethell player can still play a while without gameover. I guess you are the advanced player.