Twitch already bested Pokemon, but their latest feat is one of wonder.
It took 43 days for Twitch community to beat Dark Souls, but they were able to finally defeat Gwyn, Lord of Cinder yesterday. 
It was not an easy road, and starting out they were barely able to even get into the first boss room. Running into walls, getting stuck in pools, the encounters were numerous and frustrating to the roaming spectator.
This changed the voting system, turning Dark Souls into a turn based RPG to accommodate the traffic and lag. They would freeze the game, allow the next turn to be voted on, let the action occur, then freeze again. This turned out to be the only true way to progress and not get stuck as quickly. You could say this is cheating, as Pokemon was played without such accommodations, but still, it is an impressive feat nonetheless.
Now they are turning their attention to Dark Souls 2, and they are already 12 hours into the game, which you can watch here.
 - Kotaku - 43 Days Later, Twitch as Beaten Dark Souls - http://kotaku.com/43-days-later-twitch-has-beaten-dark-souls-1733380079