I played the 0.13 version:
I'm not good at bullet hell games so level two was already too hard for me.
The readme says that you switch angle by pressing the triggers but it was the shoulder buttons on my Xbox controller.
The first time I finished level 1 the game didn't continue to the next stage, here's a screenshot:
I only really used the homing sword attack so I wish you could hold the button down for that too instead of having to spam A to keep attacking.
If you want people to actually read the dialogue you need to add a button to continue the dialogue instead of just skipping it.