| Console: | Nintendo Game Boy Advance |
| TV Standard: | NTSC |
| Release Date: | 2016-06-01 |
| Players: | 1 |
| Co-op: | No |
| ESRB: | Not Rated |
| Type: | Role-Playing |
After the events of Pokémon Emerald and the Hoenn Catastrophe, that happens 3 years before Altair and Sirius, the Hoenn region suffered a lot of changes not only in terrain but also in the habitat of its Pokémon, reflecting that are the changes that suffered the Pokédex. You will receive it from Professor Birch to investigate these changes.
It can be observed that even though some Pokémon that are native of Hoenn are still here, some dissapearances have been replaced by Pokémon native of regions like Kanto and the recently discovered (at the time) Sinnoh, alongside a large bunch of new Pokémon that are believed appeared because of the meteoric activity.
