Shadow Link

Shadow Link (also know as Dark Link) appears several times in "The Legend of Zelda Series."

Shadow Link has the ability to copycat and utilize Link's every move, but each Shadow Link has his own advantages in each game.

Zelda II: The Adventure of Link

In this game, Shadow Link is the final boss of the game. (Not including Gannon.) This Shadow Link is literally, Link's shadow! Before the battle begins, the lights in the room go out, you see Link's shadow jump away from him, and the duel among yourself starts. After you defeat Shadow Link you proceed to awaken Princess Zelda.

He is not considered to be one of Gannon's minions, but many believe he is the final test put on Link by the King of Hyrule himself.

Ocarina of Time

This Shadow Link serves as the mini-boss in the Water Temple as an adult. He has the ability to stop you from slicing him, leaving you frozen for about 3 seconds. The more hits he takes on, the more transparent he becomes.