Basically this guy wrote code where you (and everyone else in the twitch chat) can type A, B, Up, Down, Left, Right, Start, or Select it will input the button presses. As you can imagine it's not going like anywhere, it's been going like a day and a half but somehow they evolved their Charmander into Charmeleon and defeated Brock. Also, they managed to make it through Mt. Moon, grab the Helix Fossil and then go out the way they came back in. It's quite entertaining.
EDIT: Here's a working link You need to login to view this link