Hungry Vortex 1.0 (Mobile)

Meet Vortex. Vortex is hungry. Vortex eats round things. Yarn balls, crystal balls, Vortex is not picky. Draw walls to bounce and bump the balls towards Vortex, and pick up bricks for extra flavor. Permit no balls to pass uneaten or Vortex will be sad. Don't make Vortex sad.