The first in a series of "lab reports" Capcom's Bionic Commando focuses on Nathan Spencer's constant companion and best friend: his left arm.
What would you do if you had a left arm strong enough to crush steel with the ability to shoot its hand out as a grappling hook? Would you swing, leap, grapple, and yank things around as a force of good, or would you use your powers for evil swinging, leaping, grappling, and yanking?
I think I'd fall somewhere between. I wouldn't use it strictly for good, as then people would start to expect me to show up everywhere, shooting my arm off at every problem that could possibly be solved through projectile fisting. I wouldn't turn to a life of crime, however, as nobody likes an evil yanker.