Thank you for the feedback! When you say the user interface, is it maybe not clear what you need to select? That's fair enough, especially with the Classic Mode/Endless Mode selection. I always gotta work on clarity!
Oo, I see! My idea with that was to teach the player that they don't need to click on the donuts, they can just hover over it, like the poppers on the title screen. Fair enough! I'll keep that in mind, thank you again!