Clever idea! I like the particles in the background to give the whole game a sense of motion, like you're seeing all the water running by. The low-res graphics are charming on their own, but it also makes the game sneaky because sometimes two atoms can generate on top of each other and it looks like one. I don't know if that was just a happy accident of the graphical style, but that's a genius move if it was purposeful. I had fun!