Marty was evidently feeling a little nervous about this upcoming fight — I mean, the rocket sled is plainly superior to Sir Nigma’s wheelbarrow, but the heavily-armored knight had a distinct defensive bonus, what with his iron skull-bucket and the paint on his torso that indicated he was wearing armor. All Marty had was a burlap hood and a blacksmith apron.
Fortunately, he was able to fix that with a fancy new helmet and a for-real steel chestplate. Things were looking up! Sir Nigma, meanwhile, acquired a fancy new helmet-plume, and a kickstand.