Darth Vader has many factory errors. His most common is the " 4 eyed" variant. The second, a "2 eye" variant, has only 2 shines in his eyes and a much more silver paint job. The third, the "3 eye" variant, is the most rare. In one eye, he has two shines. In the other, he has one.
Darth Vader comes with 3 accessories. A removable top of a helmet. a cape, and a red lightsaber. The second version of this Mugg includes a head which rotates to reveal a scarred face, and includes a removable hand. The Miniature version includes the removable helmet and cloak, with the Lightsaber attached permanently.