https://en.wikipedia.org/wiki/Twitch_Plays_Pok%C3%A9mon

"Twitch Plays Pokémon (abbreviated as TPP) is a social experiment and channel on the video streaming website Twitch, consisting of a crowdsourced attempt to play Game Freak's and Nintendo's Pokémon video games by parsing commands sent by users through the channel's chat room.

The concept was developed by an anonymous Australian programmer and launched on 12 February 2014, starting with the game Pokémon Red. The stream became unexpectedly popular, reaching an average concurrent viewership of over 80,000 viewers (with at least 10% participating). On 1 March 2014, the game was completed after more than 16 continuous days of gameplay; Twitch estimated that over 1.16 million people participated, with peak simultaneous participation at 121,000, and with a total of 55 million views during the experiment. On December 5th, 2014, Twitch Plays Pokemon received a Game Award in the "Best Fan Creation" category.

The experiment was met with attention by media outlets and staff members of Twitch for its interactivity, its erratic and chaotic nature, the unique challenges faced by players due to the mechanics of its system, and the community and memes developed by participants. Following the completion of Red, the streamer continued the channel with Pokémon Crystal, Pokémon Emerald, Pokémon FireRed, Pokémon Platinum, Pokémon HeartGold, Pokémon Black, Pokémon Black Version 2, Pokémon X, and Pokémon Omega Ruby. The streamer has plans to continue with other Pokémon games as long as there remains interest in the channel."

http://www.twitch.tv/twitchplayspokemon

Twitch Plays Pokemon | Know Your Meme

Helix Fossil

"Due to the large volume of chat commands being input at once, random selection of items quickly became a common occurrence during battles, especially the second item in the player’s bag, the Helix Fossil. This item appeared on screen so frequently that it came to be viewed as an object of worship and guidance by TwitchTV users. Other items treated this way were the Moon Stone, Nugget, and S.S. Ticket. The players eventually managed to revive the Helix Fossil into an Omanyte, which was subsuquentally dubbed “Lord Helix.”"

Bloody Sunday

"After successfully capturing Zapdos from the Power Plant, the community went to the PC to retrieve the newly captured Pokémon. This however required them to first deposit a different Pokémon into the PC before they could retrieve Zapdos. During the process, the chaos caused by anarchy mode resulted in the deposit of important party Pokémon into the PC, including Pidgeot, and the release of 12 Pokémon. This event which would later be known as “Bloody Sunday”."