And just like that, it's the 1990s all over again. If you haven't been living under a rock for the past week or so, chances are you've heard about the new mobile game craze Pokémon Go [1]. Available on iPhone and Android, it allows players to catch Pokémon all around the world [2] and inspires a range of very real emotions [3]. The game is so popular, in fact, that even celebrities can't help but get in on the fun. We've collected a slew of tweets and snaps that are exposing stars for the Pokémon nerds they are.