Pokemon GS Chronicles

Pokemon GS Chronicles

Download Pokemon GS Chronicles GBA Rom Hack (Pre-Patched)

Pokemon GS Chronicles is a GBA Rom Hack based on Pokemon FireRed. It has a New Story, Mega Evolution, Day and Night System, Time-based Wild Pokemon & Much More!

  • Creator: ~Ruki!
  • Version: Beta 2.7.1
  • Hack of: FireRed
  • Updated: May 25, 2023

I have no idea how to describe the main plot and storyline since many events are essentially the same form HGSS/GSC, so we can at least assume the plot may remain the same (Tbh is not the same, but at least you may get a surprise by playing the game.


Please go through the known bugs section on Pokecommunity.


The renowned Professor Elm has found himself deeply engrossed in a multitude of groundbreaking discoveries lately, one of which revolves around the intriguing legend of mystical stones that possess the ability to elevate a Pokémon to unprecedented heights. In light of these developments, he has entrusted the crucial task of investigating and harnessing the power of these enigmatic stones to two of his adept assistants, namely Ethan/Kris and [Player]. In order to facilitate their mission, Professor Elm has thoughtfully provided each of them with a Pokémon companion to aid in this endeavor. The tale begins when [Player] is dispatched to retrieve a package from the enigmatic Mr. Pokémon, setting in motion a series of events that will forever alter their journey.

In a sudden twist of fate, a mysterious red-haired individual brazenly intrudes upon Professor Elm’s laboratory and absconds with one of the precious Pokémon. Left bewildered and concerned, it falls to Ethan/Kris and [Player] to unravel the mystery behind this audacious theft. Armed with the invaluable tool of a Pokédex, thoughtfully provided by the venerable Professor Oak, they embark on an epic adventure across the picturesque Johto region. Their overarching quest is twofold: to complete the Pokédex by documenting the diverse species of Pokémon inhabiting Johto and to unearth the identity of the audacious red-haired youth responsible for the theft. The journey ahead is laden with challenges, discoveries, and the promise of uncovering the truth behind this perplexing incident.


  • A renewed storyline, keeping the essence of the original games.
  • New events never seen before in any GSC remake.
  • Maps based off HGSS ones.
  • Introducing the Mega Evolution mechanics in the main storyline + Z Moves during the Kanto Post game (Maybe Dynamax/Gigamax, idk).
  • RZE tile system.
  • Day and Night system and day/time-based events.
  • Wild Pokémon switching depending on the time.
  • Original soundtrack ripped from HGSS (Initially used GogojjTech’s low-quality music, but I decided to rip them by myself with a way better quality).
  • Phisycal/Special split moves.
  • New Regional Pokedex including 494 Pokémon from first 4 gens + Sylveon.
  • Introducing the PokéRides, Items that replace the outdated HM mechanics.
  • All new Gen 4-8 Moves included, and a few custom moves are included.
  • Type chart updated.
  • New puzzles for some areas.
  • Plenty of updated graphics (like Battle backgrounds, bag, Trainer card, almost everything.)
  • Most trainers use different rosters from original HGSS/GSC to match new Pokedex
  • New locations in Johto and Kanto.
  • Updated battle mechanics to match Gen 8
  • New locations for some Pokémon.
  • IN-battle trainer messages.
  • An almost working PokéGear.
  • Exp. Share and exp. Gain identical to Gen 8 (Item is disabled by default, easy to enable)
  • Mechanics, items, and more are almost updated to match Gen 8.
  • Daily Wondertrade with in-game trainers.
  • Move tutors on every PC.
  • And even more…


In this beta you can earn 8 badges and challenge the Pokémon league. You can also rematch the Johto Gym Leaders once you beat the Pokémon League.

Useful Stuff




~Ruki!, Redzb1, Dsaster, 874521, CnickC, Newtiteuf, Alucus, Dewitty, epicday, WesleyFG, Kyledove, Anonyboy, Scarex, Pokemon-Diamond, BoomxBig, Warpras, Lost Three, Zaux, Tsuka, Hollowroxas, 874521, flamejow, skarow, The 64×64 DS sprite resource, Jo7a, MrDollSteak, GoGoJJtech, Shiny Quagsire, Jambo51, JPAN, Touched, FBI, Navenatox, Interdpth, Knizz, Jiangzhengwenz, Againsts, Compumax, Kaiser, Kimonas, Rdio., Diegoisawesome, Zaux, Karatekid552, Jaizu, Chaos Rush, Nisarg, Luna, Delta231

You can download the Pokemon GS Chronicles GBA ROM from this page and you can download an Emulator for your device from this link to play the game.