A gamer has become the first person in the world to complete Diablo III on the hardest setting.
The game is a long and complex role-playing adventure in which gamers create characters, battle the undead and hunt for treasure.
Kripparrian, who is from Toronto, posted the video of himself destroying Diablo - the game's ultimate demonic boss - on YouTube.
To make his mammoth quest extra tough he played the game on 'inferno' - the hardest difficulty setting - and set his character to 'hard core', meaning if they died once the game would be over.
The Brady Games Diablo III game guide - which at almost 500 glossy magazine-style pages is pretty much the ultimate companion to the game - describes the battle as the game's "ultimate challenge".
On Inferno mode Diablo has 76,499,000 hit points - roughly 1.25 million times as hardy as the weakest units in the game.
The guide says that Diablo's "lightning breath" attack can "kill the Hero instantly if not properly guarded against", and that if you can't teleport behind him "your only safe recourse is to flee".
Brady Games' guide reports that Diablo's attacks include 'Ring of Fire', 'Hell Spikes' and the nasty sounding 'Shadow Vanish Grab'. Ouch.
Kripparrian completed the final battle in around 25 minutes, and was ecstatic when he was done.
At first a community manager at Blizzard appeared to dispute the claim:
But afterwards recognised his mistake and confirmed it was a world first: