https://www.gamespot.com/articles/pokemon-lets-go-pikachu-eevee-trailer-shows-off-ne/1100-6461663/

The Pokemon Company has shared another trailer for Nintendo Switch's upcoming Pokemon RPGs, Let's Go, Pikachu and Let's Go, Eevee. This new video, which you can watch above, showcases some areas in the Kanto region we haven't seen yet, along with a couple of brand-new moves your partner Pokemon will be able to learn during the adventure.

The trailer begins with a look at Secret Techniques, new field moves that your starter Pikachu or Eevee can use to open up blocked pathways around Kanto. These techniques replace the HM moves you previously needed to teach Pokemon in order to fully explore the region in the original Yellow version; the Chop Down technique clears certain types of trees from the overworld, while Sea Skim allows you to hop on a surfboard and travel across the water.