The Rat - an extremely durable rover that can handle any kind of terrain.
About this creation
This is the most effective rover I have ever built. It uses hardly any parts, has a low centre of gravity, is extremely durable, and is capable of exerting quite a lot of force on any object in its path. Put on the bumper from the Robotics Discovery Set, program it to avoid touch, and let it loose. This robot can also serve as the base chassis for another robot on top, like an arm or a photobot.