Cranium Fact:
This was meant, if I remember right, to be the type of four-armed guy who'd been considerably weaker, and suddenly became a huge mass of muscle with the help of some secret technique or some such bullshit. So the idea, if I remember right, was that the head was the only thing that wasn't bulkified by the use of this 'tech.' Kinda like what one would see on Dragonball or some such other action/muscleman-heavy show.
For Example:

But I guess I couldn't pull of the same effect way-back-when....^_^'