One time this DM made a boss to parallel the early game chocobo eater boss fight from Final Fantasy X. Our archer, who has an ability that allows him to shoot additional arrows on to-hit criticals, won the initiative and promptly rolled four 20/20 criticals in a row. We concluded that he had shot the chocobo eater twice in each eyeball and that it died instantly.
One time this DM made a boss to parallel the early game chocobo eater boss fight from Final Fantasy X. Our archer, who has an ability that allows him to shoot additional arrows on to-hit criticals, won the initiative and promptly rolled four 20/20 criticals in a row. We concluded that he had shot the chocobo eater twice in each eyeball and that it died instantly.
Sometimes ... crit happens.