Mr. Psychic

Mr. Psychic is one of the people involved in revealing the secrets of the Poké Gods.

Origin
Mr. Psychic gives out TM29 (Psychic) andl lives in Saffron City. He serves no other purpose in the games, leading fans to speculate whether he had some other more important role, thus leading to him being involved in some of the rumors about the PokéGods.

Activation
The main rumor concerning Mr. Psychic was that if someone brought Moltres, Zapdos and Articuno to him, he would tell them about the PokéGods. This usually served to be a necessary step before being able to catch any of the PokéGods. Some codes would make this more difficult, saying you also need to have all 150 Pokémon or that your party must also have three Geodude.