Destroy All Monsters
Like previous Godzilla films, "Godzilla vs. Megalon" heavily employs stock footage from previous films such as "Mothra vs. Godzilla" (1964), "The War of the Gargantuas" (1966), "Ebirah, Horror of the Deep" (1966), "Destroy All Monsters" (1968), "Godzilla vs. Hedorah" (1971), and "Godzilla vs. Gigan" (1972).