How can I get more Pikachu cries? New cries will be unlocked automatically as you keep tracking your sleep using your Pokémon GO Plus + and build your friendship with Pikachu. Related articles Pikachu’s cries were unlocked from the beginning. Is this a bug? The Pikachu with the hat isn’t growing friendlier toward me. What is the “Auto-Sync with Pokémon GO Plus +” feature in Pokémon Sleep? Where should I place my Pokémon GO Plus + when I track my sleep? How many sleep sessions tracked by Pokémon GO Plus + can I report at once?