This 80sTees.com exclusive GI Joe t-shirt features the artwork that appeared on the box for the physical trainer Big Boa's action figure. Cobra troopers can be an unruly bunch at times. They aren't motivated by patriotism, unit loyalty, honor or sense of duty. It takes a brutal, unfeeling taskmaster to whip them into fighting trim and Big Boa fits the bill to a tee. He has a voice like a bullhorn, fists the size of frozen turkeys and the disposition of a rabid grizzly bear.