Fill in the Blanks The components of MartyOnline version This activity will evaluate your understanding of Marty's components and what they do. by Paul Nicholson 1 Humanoid Form personality character is Marty's and ! 2 a turn sidestep kick walk dance ball wiggle The unique walking mechanism allows Marty to , , , , , and . 3 legs arms eyes The nine metal - geared position sensors are smart servo motors in the , , and . 4 foot infrared screenless color The sensors are and sensors for coding . 5 eyebrows expressed range Marty's move , giving him a of emotions . 6 quality parts moulded classroom plastic ready robust Marty has that make him - , , and built to last . 7 acceleration sensors tilt The and are in Marty's head . 8 3 rechargeable hours 2 battery play Marty runs off a that allows him to for - when fully charged . 9 sounds speaker play talk Marty uses a to and .