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The Screwdiver is an Emblem Heartless that appears in Kingdom Hearts. Appearing in the underwater world of Atlantica, these Heartless resemble deep-sea divers.They are coloured in shades of green and their heads have a fish-like shape to them: they are long and sport short fins, with the rear of the head tapering to a point and fitted with a propeller.
Screwdivers are expert swimmers, and they will attack Sora and friends by charging at them with their lances extended. On occasion, a trio of Screwdivers will appear carrying an Aquatank and will scatter when attacked or when the Aquatank charges.