Congrats on submitting! The music is quite nice and chill, and the core concept of circular Pong is interesting. The controls were intuitive and felt pretty good. I also liked that the score is displayed in the middle of the screen, that's exactly where my eyes are most of the time. Well done for not taking the usual option and dumping it out to a corner!
There are a few things that could be improved, however. Initially, I found it quite difficult to see what was going on, and the lack of an automatic reset after losing was frustrating. The checkerboard background pattern was a bit hard on the eyes, and the background change at 20 points was a bit jarring and threw me off. The power-up didn't actually end up adding all that much to it, because I found that I just ignored any extra balls ๐ซ
Overall, it's a decent effort for a game jam, and with a few tweaks it could be even more enjoyable!