The subject of this article originates from non-canonical sources. To find out about what is considered "canon" see LOTR:Canon.
The Wight Lord was a boss in The Hobbit Game.He appeared in the "Flies and Spiders" level. His difficulty is due only to the constriction of the level; his minions and missiles only add to the chaos. Taking out the harder minions, and then wailing on him with Sting, all the while watching the health bubbles (and eating the lovely health mushrooms), proves the easiest way to defeat him.