Yes, but it doesn't just form from the AGAR, it grows from a little particle that lands in it after the ball gets destroyed by the laser.
Yep, I also saw the one next to the red balls. Just mentioning it so I can list all 5 that I saw.
There is another loop that goes around the TV that says "NO".
There is a smaller loop at the top of the image, a bit above the AGAR. A ball goes around that circular tube, making only a small detour.
The last one is just to the right of the part with the red balls. It crosses the edge of the image.