- First play should give instructions for play
- Button overlaps front facing camera on pixel 5 (upper left corner)
- no way to add extra vials after they’re all used
- no way to add extra hints
- how do you get less than 3 stars on a level?
- no way to enter settings while in a level to, for example, mute music or sound fx
- no way to exit from a level to the main menu