King Knight is simple; the gray checkpoint means he's very easy (since gray gems are only 1 gil). He hops around a lot, but you can pogo him for days. He can Ground Pound which paralyzes you when you're grounded, leaving you open to his scepter bash. He can aslo ExtremeSpeed through the area by readying his weapon. When he calls his trumpets to fire lethal confetti, MURDER HIS FACE. Easy as pie.