Dark Link has appeared in several Zelda titles to-date, although it is unknown whether any of these Dark Links are one in the same or all individuals. An antagonist, Dark Link is the shadow-like version of Link himself. Due to this being a shadow of the real thing, Dark Link is capable of executing many of the same attacks as Link himself.
 The Legend of Zelda: Ocarina of Time
Dark Link is the mini-boss of the Water Temple. He looks much like Link, but with red eyes and black skin and clothes. Dark Link mirrors all of your attacks and will sometimes sit on your sword.
Dark Link is encountered in a room transformed by an illusion to look like an area covered with a shallow layer of water with a single tree on an island in the middle. If you Z-target him, he is impossible to beat as he will move, lunge and attack when you do. The most popular strategies to beat him are Din's Fire and the Megaton Hammer, found in the Fire Temple.
Once you defeat Dark Link, you receive the Longshot.
Related ThreadsYou (as player 1 Link) vs Dark Link (player 2) - last post by Dark Arcanine @ Dec 2, 2011
Dark Link - last post by @ Dec 1, 2011
Dark Link needs more importance? - last post by @ Sep 1, 2011
beat Dark Link?? - last post @ Dec 15, 2013
Dark Link is Easy - last post by @ Sep 3, 2014