Which ROM do I need to patch Pokémon Evolved?

The creator specifies Pokémon LeafGreen (USA) v1.1. Use that exact base rather than a differently regioned or revised LeafGreen dump.

What patch format does it use?

The official download is evolutions.ips, hosted in AtSign8877's GitHub repository. The README recommends applying it to the base ROM with Lunar IPS.

Can I catch every original Kanto Pokémon in one solo run?

Yes. The creator says the route encounters were changed so all Generation I Pokémon can be found and caught in one solo playthrough.

Do I need to follow a particular Gym order?

Yes. The creator says the game is balanced around obtaining badges in Gym order, so it is best to treat the standard Kanto sequence as intended progression.

Should I visit the Sevii Islands or go back to the S.S. Anne?

The creator advises against visiting the Sevii Islands and specifically says not to return to the S.S. Anne after leaving it.

GBA Completed Hack of LeafGreen

Pokemon Evolved

A completed LeafGreen GBA hack expanding the original 151 into a 354-Pokémon Pokédex with new species and evolutions.

Fakemon
Modern mechanics
Huge Pokédex

Status: Completed
Plays on: PC · Android · iPhone (emulator)
Base game: Pokémon LeafGreen
Version: 1.0
Made by: AtSign8877 & Team

Download Install guide

About Pokemon Evolved

A 354-Pokémon Pokédex built from the original 151 makes evolution the centerpiece of this expanded journey. Pokémon Evolved is a completed GBA hack version 1.0 by AtSign8877 & Team, based on LeafGreen. It includes custom sprites for every new Pokémon, always-active EXP All, the Physical/Special split, and selected post-Generation III moves and abilities. Trade and friendship evolutions now happen through leveling, while evolution stones remain part of the progression.

What's in it

A 354-Pokémon Pokédex with new species and evolutions.
Custom front and back sprites for every new Pokémon.
Infinite Rare Candies on the PC that replenish after leaving.
EXP All is always active.
The Physical/Special split.
Selected post-Generation III moves and abilities.
All Pokémon evolve by level-up or evolution stones, with new evolutions not requiring stones.
Trade evolutions occur through level-up.
Friendship evolutions are level-based.
Stone evolutions are unchanged.
The Celadon Stone Seller carries all needed evolution stones.
HMs must be taught or carried by an HM intern.
Gym progression follows the intended badge order.
The Sevii Islands are not a major focus.
Do not revisit the S.S. Anne after leaving.

◆ POKEPATCHED NOTES

Pokémon Evolved is a Pokémon LeafGreen v1.1 hack that gives the original Kanto Pokémon longer evolution lines and reworks their stats, movesets and evolution levels. Its route is still built around Kanto's intended Gym order, but the creator specifically advises skipping the Sevii Islands and not returning to the S.S. Anne.

Base ROM: Pokémon LeafGreen (USA) v1.1.

Before you patch

Use Pokémon LeafGreen (USA) v1.1. That is the exact base named by the creator.
Get the official IPS patch, not a pre-patched game. The project README calls the file evolutions.ips and recommends Lunar IPS for applying it.

Route and progress

The encounter table was changed so every original Generation I Pokémon is obtainable and catchable in one solo playthrough.
Progress is balanced around earning badges in Gym order. Treat the usual Kanto sequence as the intended route rather than trying to skip ahead.
Skip the Sevii Islands. The creator explicitly says they are not a focus. Also, do not revisit the S.S. Anne after leaving.

Who it’s for

This is for players who want a more demanding Kanto run built around reworked evolution lines and a complete original-Gen-I collection in one solo playthrough. It is a poor fit if exploring the Sevii Islands is part of the plan.

If you liked it

Pokémon Alternate Evolutions — another FireRed-based evolution-focused pick.
Pokémon AlteRed — another completed FireRed variant.
Pokémon Radical Red — another completed FireRed hack for a more demanding run.

Sources

Notes researched 2026-09-25 from the sources above.

Pokemon Evolved: common questions

Which ROM do I need to patch Pokémon Evolved?: The creator specifies Pokémon LeafGreen (USA) v1.1. Use that exact base rather than a differently regioned or revised LeafGreen dump.
What patch format does it use?: The official download is evolutions.ips, hosted in AtSign8877's GitHub repository. The README recommends applying it to the base ROM with Lunar IPS.
Can I catch every original Kanto Pokémon in one solo run?: Yes. The creator says the route encounters were changed so all Generation I Pokémon can be found and caught in one solo playthrough.
Do I need to follow a particular Gym order?: Yes. The creator says the game is balanced around obtaining badges in Gym order, so it is best to treat the standard Kanto sequence as intended progression.
Should I visit the Sevii Islands or go back to the S.S. Anne?: The creator advises against visiting the Sevii Islands and specifically says not to return to the S.S. Anne after leaving it.