That was fun.
Stuff gets out of hand quickly. Could get even more chaotic if the controls for different seesaws wouldnt be next to each other. (Don't know if that happens on later levels)
I think some powerups could add a bit more fun in a post 'out of control' jam world.
First things that came to my head:
Seesaw Freezer: Freeze a seesaw in place.
Puff Converter: Change all puffs of the same type that are touching, to another type.
Breakout: Spawns a breakout bar at the bottom bouncing falling puffs back up.
Let it Snow: For the next few seconds a Puff held in your hands, will multiply rapidly.