I've tested it for some tries (my best score was 11,900). As a gameplay I find it quite easy to undestand and the increment of the speed between each star caught was fair to me. Overall I find a pretty solid game with no intrusive music to be concentrate on the game, and also sound effects are simple but effective to this game. Besides, I felt the black background was a good choice to be focused on the game, not being very intrusive with the game experience, either.
As a minor suggestion (to add a suggestion), perhaps you could add the Best Score on the game screen instead of being "hidden" in the 3 lines option, and that it updates when the player while playing surpasses the High Score. As I said before this is a minor suggestion and very subjective. Some people may like, and others may loss the concentration during the gameplay.
In any case, the most important thing is that I really had a fun time with your game and it's pretty solid. Congrats!😊