What is Pokémon Generation 3 Evolved?

Pokémon Generation 3 Evolved is a fan-made Game Boy Advance hack by Specimen_Delta. It connects Kanto, the Sevii Islands, and Hoenn in one adventure. The creator describes a reworked Battle Frontier and says players can obtain Pokémon numbered 1 through 1,025.

The project adds Mega Evolution, Dynamax, Z-Moves, and Terastallization. It also changes how experience works. Underleveled team members gain experience faster, while Pokémon that outlevel an opponent earn less. The creator describes this as a way to encourage swapping team members without imposing hard level caps.

Which FireRed version do you need, and how do you patch it?

Use a clean Pokémon FireRed (USA) v1.0, also called Rev 0, from your own lawful copy. The creator lists SHA-1 41cb23d8dccc8ebd7c649cd8fbb58eeace6e2fdc for the unmodified base file. If a patcher reports a mismatch, check the revision and checksum before trying again.

Get the .bps file from the creator’s GitHub releases. In a BPS-compatible patcher, select the clean FireRed file as the source and the .bps file as the patch. Save the resulting .gba as a separate file and open it in a GBA emulator. The creator primarily tested mGBA.

Can you keep your save when updating to v1.0.17?

The creator listed v1.0.17 as the latest release on November 13, 2026. The release notes say it fixes tile-rendering bugs and works with existing Generation 3 Evolved saves.

Back up your in-game save before updating. If your emulator starts a new game with the updated file, the creator suggests checking that the updated .gba and a copy of your existing .sav share the same filename stem. Keep the original save backup until you have confirmed your progress loads.

Quick help

Can you travel through Johto and Sinnoh?

The creator says visiting Gym Leaders from those regions appear in Kanto, the Sevii Islands, and Hoenn after you become Hoenn Champion. The documented itinerary covers Kanto, Sevii, and Hoenn.

Where can you look up changes to individual Pokémon?

Open ROM Documentation.xlsx from Specimen_Delta’s project repository. The creator points to that spreadsheet for Pokémon changes.

Source and scope

Nisu checked the creator’s GitHub release and launch discussion on November 13, 2026. We did not apply the patch, play the hack, or test save migration. The cover is original Nisu artwork.