All the dots move the same distance toward the center at the same speed repeatedly. すべてのドットが同じ距離を同じ速度で中心方向へ動くことの繰り返しです。
Thanks to @tennpuraudonn for the original project Dots: https://scratch.mit.edu/projects/743985173 In this remix, I have added size change, transparency, sine/cosine-controlled motion and sound, and I tweaked the code a bit.