LogFAQs > #973032920

Minigun Roidfield is a solid contender for strongest incarnation.
There's a bunch of interactions where he's pulling levers and picking things up where he takes one hand off the gun part and swings it around where it weighs nothing.
Not to mention the giant metal ammo cuboid on his back that doesn't impair his movement at all.

Edit: I like that the heavy metal costume appears to have four canned carbonated beverages attached to the front of it in case of emergency thirst.