Question: things to do once you beat pokemon let's go?
Answer: 3 Complete The Pokédex. 4 Challenge Red At The Indigo League. ...  5 Battle The Master Trainers. ...  6 Challenge Blue At Viridian Gym. ...  7 Challenge Green In Cerulean Cave. ...  8 Catch Mewtwo. ...  9 Finish Catching The Legendary Birds. ...  10 Fly! ...