Through its three directional microphones, this robot perceives and reacts to sound. Have fun with Hero's four play modes! Hero can locate you, follow you around, be remotely controlled by your commands, and even play against you in a wild game of tug-of-war - all by sensing noise! Clap your hands or use the included castanet to send commands to Hero. Hero's innovative design includes movable arms that can disappear into his spherical body and a giant, illuminated eye for making facial expressions. Build Hero from over 100 parts.