Movie S5.

Three square-shaped microrobots are simultaneously, repeatedly translated in different directions such that they exchange places (clip 1). Three square-shaped microrobots are simultaneously rotated at different angular velocities (clip 2). Four spaceship-shaped microrobots are simultaneously, repeatedly translated in different directions such that the exchange places (clip 3). Four spaceship-shaped microrobots are simultaneously rotated at different angular velocities (clip 4).