Interesting concept. I feel like a few QoL features would've made it easier to "live with" some bugs. When trying to make a bigger circle, I had to wait quite a long time until something happened for me to do. A possbile speedup button might've helped. But "ironing out the wrinkles" was also my favourite part of it :D
And I felt like decreasing could make this into an interesting morphing game where you might have to "sacrifice" size to get some points inside the circle.