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A Taiwanese man has become the first person to 'finish' the massive World of Warcraft massively multiplayer online game.

The gamer's character 'Little Grey' makes him the first to complete all 986 in-game achievements - but it hasn't come without controversy.

Technically - according to some players - Little Gray is still missing one achievement called 'BB King.'

A glitch has meant he's been awarded one false achievement point, according to the website MMO Champion.

In his monster quest he has killed 390,895 creatures, completed 5906 quests (at a rate of 14.62 per day), copped 7,255,538,878 damage points, raided 405 dungeons and hugged 11 players.

The hugely popular MMO - which at the end of last year had a whopping 11.5 million users - has often been accused of being 'addictive'.