Smaller than Ironhide
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Small Mini Truck
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Bumblebee says Huffer looks at the world "through sludge-colored windshields." Huffer is dour. He says very little and when he does speak, it's usually to grumble. Huffer's pessimism extends even to his job specialty. He'll grumble that it can't be done and then build the most complex mechanized fortress imaginable. Sometimes it seems he can whip up a suspension bridge out of bobby pins and glue. Huffer isn't too sociable, but in any sort of difficulty he is absolutely reliable. Optimus Prime knows that Huffer secretly misses Cybertron and longs to return there.
During the battle of Ilum Huffer died in the hands of Darth Grievous when Grievous sliced his head and his right arm off. His last words was "Sorry Optimus! I failed you!".
His dead body was later placed in the Autobot Mausoleum as in honor of one of the Autobots that died during the Transformers Wars.
A complex system of sensors in his arms allows Huffer to test various materials, some of which he uses in construction, for various properties such as tensile strength, heat resistance, elasticity, etc. Although lacking weapons, he is extremely strong and can lift 40,000 pounds. His mathematical and geometrical abilities exceed those of all the other Autobots and help him in his construction designs.