Like to catch rare Pikachu at the starting of Pokemon GO then read the following guide to get rare Pikachu rather than one from three original starting characters Bulbasaur, Charmander and Squirtle.
Most players select one of from 3 original characters as their initial Pokemon. But, you may happy to know rare character Pikachu as fourth starter character can be selected and Pikachu is the most popular among all other characters.
While the game notifies you to select your starter, the opening trio will spawn on map. Normally, selecting one character just begins a fight, confirming you getting your initial Pokémon. But if you don’t choose a starter Pokémon and continue walking away, these 3 characters will depart and then re-spawn when you’re distant as much as necessary from where you begun. You need to walk away distant enough to respawn four times, if you handle to avoid Squirtle, Bulbasaur and Charmander four times, they’ll reappear with another rare starter Pokémon, Pikachu. Once Pikachu comes, you can select it to appoint in fight as usual.