Create a "post jam" version with the default controls.
You may have gotten used to the controls and have no problems, however for most it is not comfortable / fun.
A hug
Hey, thanks for feedback and suggestion.
I just uploaded a "post jam" version with more usual/traditional controls(but we've decided to keep mouse click for shooting), and also added some cool sounds.
I think boss 3 will still have some little improvements soon.