With strong plastic pieces and robotic capabilities, this build-a-robot kit requires only a Philips head screwdriver and creativity for construction. Individuals can build a humanoid, a puppy, a dinosaur, an excavator and other machines, all of which utilize a sensor module that can sense distance and detect sound, Dynamixel DC servo modules that allow for a broad range of motion, and a CM-5 central controller module. The included computer programs can be used to create robot behaviors and movements. Three kits — Beginner, Comprehensive and Expert — are available.