Twitch plays pokemon, google it, although the 1st gen is over but they've started 2nd gen, been going for about 2 hours now. Basically there's a video feed showing pokemon being played, and people enter button inputs in the chat window at the side, then the computer enters them into the game. The result is tens of thousands of people attempting to play pokemon at once, and we managed to complete the 1st gen game in under 20 days. The helix fossil came about because during battles we'd get stuck selecting the helix fossil hundreds of times, so it became a bit of a running joke. When it got turned into Omanyte people got super excited.