Pokémon GO players can encounter a special Charmander wearing Friede’s goggles from Pokémon Horizons: The Series by redeeming the code 0004POKEMONGO for Timed Research via the official Pokémon GO Web Store. The research leads to an encounter with the costumed Charmander but expires Sept. 22 at 8 p.m. local time, giving Trainers a limited window to redeem the code and complete the research.
Source: Official Pokémon GO blog
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