What a weird world you bring up. Little balls doing experiments and being guided with a AI for the freedom. Surely you put so much creativity with your Unity skills.
As suggestions, check twice the ball movements. It was really fast if you go in one direction and really slow if you go to the opposite direction. For this game in particular is fine like this, but soon you improve the commands for future games and better it is.
You can softlock yourself in more than occasion between spawns of objects and structure or by falling, adding more walls and teleporting the player in certain occasions might do the trick.
I would really liked if, when going to the wrong location when escaping, hearing voices about him nervous about what I was doing and such.
Also, I don’t think the game would be this enjoyable without music. Putting texts can help.
Overall, I liked this game and can’t wait to see what you will do in the future! Good luck!