A nice simple game that fits the theme and is well functioning. My suggestion for improvement would be adding a UI element that tells you how many "lives" you have left, and maybe a few small obstacles for the player and the other balls, just to spice it up a bit :)
I intended to add a a big bad ball that tries to catch the player, but i ended up spending the last day with my kids instead :) my son is a little sad, because he misses his Kindergardenfriends since it's closed down for Corona-safety. So we played with our dog and spent the day outside in the near Forrest and our garden. It was nice.