This is a really cool idea! I like particle-based games like this; I think it's a really cool aesthetic and can make for some interesting gameplay.
I tried a couple of rounds of this one and did OK in one of them and terrible in the others. For me, I think the missing piece is some kind of feedback in the middle of the run about how well I'm doing, when things are ready to be moved over, etc; it wasn't always clear to me how much soap to use, how long to spin for, etc.
I think there are some really nice bones here, and I love the art style. All-in-all, nice work and a solid jam entry. Kudos!