Just a bouncing ball, staying in the circle. Hope this helps! Here's how, though there are other ways, this is simplest for beginners with flat colors. I did "If touching color white, then: Direction: Randomized", but not through the full positive and negative, or it wouldn't stay in the circle. This is because if it only changed by 5 or smth it would keep leaving the circle and glitch out when it gets high numbers on the white backdrop. How I did colors: In the direction randomizing code i made the color change by 1.
I, @Supercupcake00789, fixed it so it stays in the circle and cycles through the rainbow. ALL OTHER CODE is from @star_wolves1.