Pokémon Chroma (GBA) – Story-Driven Emerald Overhaul with Original Region, Modern Mechanics, and Multi-Gen Pokédex

Pokemon Chroma GBA Cover

Game Information

Hack Name: Pokemon Chroma
Original Game (ROM Base): Pokémon Emerald
Hack Status: Beta (v2.0)
Language: English
Content: Story-driven overhaul featuring a custom region, modern mechanics, and expanded Pokémon roster

Table Of Contents



About This ROM Hack

Pokémon Chroma is a story-driven Pokémon Emerald ROM hack built using pret’s pokeemerald decompilation, allowing for deep mechanical changes and modern features. While it visually resembles Pokémon FireRed, it runs on Emerald due to engine-level enhancements and expanded scripting support.

The hack introduces the Ryoko Region, an original setting with a custom storyline, a wide multi-generation Pokédex, and numerous quality-of-life upgrades. Pokémon Chroma aims to deliver a modern Pokémon experience while retaining classic GBA-style presentation.


Story Overview

Today marks the opening of the Ryoko League’s annual circuit, a prestigious competition drawing trainers from across the Ryoko Region. You and your neighbor, Skip, receive your first Pokémon from the region’s leading researcher, Professor Cypress, and begin your journey toward becoming a League Champion.

However, your adventure quickly takes a darker turn. A dangerous criminal organization known as Team Proto, led by their Supreme Leader Apollo, seeks to overthrow the Ryoko Region entirely. As you collect Gym Badges and grow stronger, you’ll uncover Team Proto’s true ambitions and decide the fate of the region.


Key Features

  • Physical/Special Split: Moves are categorized by function rather than type, matching modern Pokémon mechanics.
  • Multi-Generation Pokémon Roster: Pokémon from Kanto, Johto, Hoenn, Sinnoh, Unova, Kalos, Alola, and Galar are all obtainable.
  • Custom Ryoko Region: Explore an entirely new region with original towns, routes, and landmarks.
  • Original Storyline & Characters: New rivals, villains, and NPCs exclusive to Pokémon Chroma.
  • Updated Movesets & Abilities: Pokémon use revised learnsets and modernized abilities for better balance.
  • Hidden Grottos & Secrets: Discover optional areas and rare Pokémon by exploring off the beaten path.
  • Additional Evolution Stones: More stones are available to support expanded evolution methods.
  • Infinite TMs: TMs can be reused indefinitely, encouraging experimentation and strategy.
  • Modern QoL Improvements: Numerous small enhancements designed to reduce grinding and streamline gameplay.

Known Bugs & Issues

  • As a beta release, some scripts and balance elements may still change
  • Occasional visual inconsistencies due to ongoing development
  • Save compatibility between future versions is planned but not guaranteed


Screenshots

Pokemon Chroma Screenshot 00Pokemon Chroma Screenshot 01Pokemon Chroma Screenshot 02Pokemon Chroma Screenshot 03Pokemon Chroma Screenshot 04Pokemon Chroma Screenshot 05Pokemon Chroma Screenshot 06Pokemon Chroma Screenshot 07


Download Links

Beta (v2.0)Mediafire

Documentation

Ryoko Pokédex
Pokémon Locations


Developer Information

Developer / Team: VXO
Credits: 

  • vxo: Mapping, Scripting, Development
  • French-Cyndaquil: Art
  • Acanthite Team: Tiles
  • LunaMaddalena: Tiles
  • AveonTrainer: Art
  • Spherical Ice: Tiles & inspiration
  • pret: pokeemerald decompilation


Source & References

Official Thread / Website: https://www.pokecommunity.com/showthread.php?t=420448
Community Links:  


Frequently Asked Questions

Q: Why does Pokémon Chroma look like FireRed if it’s based on Emerald?
A: The hack uses Pokémon Emerald’s engine via pret’s decompilation but intentionally mimics FireRed’s visual style.

Q: How do I apply the patch?
A: Use a patcher that supports .bps files (such as FLIPS). Apply the patch to a clean Pokémon Emerald (U) ROM.

Q: Can I keep my save file for future updates?
A: Save compatibility is planned, but not guaranteed. Always save in-game and inside a Pokémon Center before updating.

Q: Is Pokémon Chroma finished?
A: No. The hack is currently in beta, with more content planned beyond the fourth Gym.

Q: Where can I report bugs?
A: Bugs should be reported in the #bug-reports channel on the Pokémon Chroma Discord.

Q: How many Gyms are currently playable?
A: Beta v2.0 includes content up to 4 Gyms.

Q: Does the game include Pokémon from newer generations?
A: Yes. Pokémon from Generations 1 through 8 are included.