The Pokémon rosters of every Trainer in the game has been edited, now including Pokémon from the National Dex. Additionally, the correct locations for wild Pokémon are also shown in the Pokédex. The details for where to get each Pokémon can be found between the wild Pokémon and special events documents. In the cases where a Pokémon being in the wild would not be thematically appropriate - for example, starter Pokémon or legendaries - new events have been added to the game to make obtaining these Pokémon feel as unique as they normally would. It's possible to catch or obtain the majority of Pokémon before facing the Elite Four for the first time, meaning you can construct almost any team you want. The wild Pokémon for every single area have been modified extensively, now including species not ordinarily found in the Sinnoh region.
All Pokémon that were originally in Platinum, from Bulbasaur to Arceus, are available to obtain within the game.
