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