Lego EV3 Cobra vs NXT Alligator vs EV3E Elephant

Watch an autonomous EV3 Cobra with fangs go after an aggressive NXT Alligator, with a lumbering Elephant to round out the competition! Each one was built and programmed by my 9 year old son. The Cobra and Alligator are autonomous with their movements guided solely by their sensors and programming. The Elephant’s movement and trunk is remote controlled.