This is, or rather, was, link from The Legend of Zelda, Ocarina of Time. The game went through several stages, and this was the very beginning, before it was even a game. It was going to be a game, but it was nothing but a simple 10 second animation, featuring Link fighting a metallic version of himself. Link looks to be identical to his original appearance, aside from hair color, though that could easily be caused by being in what seems to be a cave. This was one out of around 4 stages in the game. I'm not much of a shader for my skins honestly, though i can do simple shading- Here i used the minimal amount of shading that was on the picture, to save me time, and to be more faithful to the trailer.

Reference:

This is Link from the Tech demo trailer shown at Shoshinkai (I think), later known as Spaceworld.