The games removed the need for "HM Slaves" by allowing players to call wild Pokémon to perform field moves like Cut or Fly directly from their Pokétch.
Reception of the games has been highly polarized within the Pokémon community: Bdszip
The games feature a distinctive chibi art style in the overworld, meant to mimic the look of the original DS sprites in 3D. The games removed the need for "HM Slaves"