Here’s a pretty nifty video of the robot in action. Note that it’s significantly sped up.
Because objects tend to stick to each other, especially on a very small scale, the robot is built entirely without hinges or pivots. It moves by bending itself.
The robot, "is teleoperated, powered by the grid of electrodes it walks on. The charge in the electrodes not only provides power, it also supplies the robot’s instructions that allow it to move freely over the electrodes, unattached to them. "