Troll (Kings Quest IV)

The Troll is a minor villain from the adventure video-game known as Kings Quest IV: The Perils of Rosella and is a shadowy creature that resides in a pitch black cave, much like the other roaming monsters of the game it will chase Rosell and if it catches her will instantly kill her.

There is no way to fight the troll, the best defence is to simply run away - although it is difficult to catch a glimpse of this monster occassionally you can see enough of his form to determine that he walks on two legs, is vaguely humanlike and carries a large club.