Pokemon Odyssey

Pokemon Odyssey

Download Pokemon Odyssey GBA ROM Hack (Pre-Patched)

Pokemon Odyssey is a GBA ROM Hack by PacoScarso based on Pokemon Fire Red. it is now available to download in English and was last updated on October 28, 2023.

  • Creator: PacoScarso
  • Version: Beta 2.5
  • Hack of: FireRed
  • Updated: October 28, 2023
  • Main Story Completion:  50% (Beta v2.5 ends at the beginning of the Fifth Stratum.)
  • Language: English


Hello people! Long story short: this is a crossover project between PokémonMade in Abyss, and Etrian Odyssey. It’s a sort of dungeon-crawler story-driven.


The entrance to the Yggdrasil labyrinth, a massive desert created from the roots of the tree of life over millennia and stocked with treasures and other important artefacts, is located on the island of Talrega. What exactly are you looking for? Fame? Money? Or do you simply want to put your coaching skills to the test by navigating the maze? What happens at the end?


  • New History and Map.
  • New Graphics.
  • Shared Experience
  • Two Initials Minun and Plusle.
  • The first 3 generations of Pokémon plus their fourth generation evolutions are available
  • All Pokémon present received a new learnpool and the weakest mediums received buffs and adjustments to bring them to the level of the others
  • Two selectable game modes are available in the prologue: Normal and Hard
  • The labyrinth is divided into layers and each of them has a captain that must be defeated if you want to continue
  • Adding part of the movements of subsequent generations
  • All Pokémon, both trainer, and wild, will have 31 IVs in all stats to decrease the grind
  • Pokémon nature is highlighted in the various menus
  • EVs-IVs screen available in the Start menu
  • The automatic stroke can be activated and deactivated by pressing the “L” key on the GBA Emulator
  • All fights in the game will be doubles, except when you have only one Pokémon
  • Pokemon will not give EVs when defeated. Indeed, it will be necessary to use vigor tools and vitamins (from the reduced price)
  • There is a soft level cap to prevent players from making me too much and ruining the gaming experience
  • Cannot use healing tools in combat unless held (like berries)
  • There is a Prodigious Exchange system in the Talrega guild
  • O Esplorokit replaced o MN Cut, Force e Split
  • MT infinite
  • Presence of Etrian Odyssey features such as collection points, excavation, sea explorations, FOE, and store upgrades
  • New soundtrack.



  • A young adventurer that wants to challenge the Yggdrasil Labyrinth.
  • Good at Pokémon battles, she tries to follow in her sister’s footsteps in order to surpass her.
  • Signature Pokémon: Plusle & Minun


  • The best explorer from the Adventurers Guild in the city of Talrega and Nyx’s older sister.
  • She’s the one that wrote the majority of books and guides regarding the labyrinth, its treasures and mysteries.
  • Signature Pokémon: ???


  • An introverted and awkward boy who will travel with Nyx during her adventure.
  • He has a mysterious connection with Aimée.
  • Signature Pokémon: Kecleon & Shroomish.


  • A strange girl who will travel with Nyx during her adventure.
  • She claims to be a robot and acts like one.
  • She has a mysterious connection with Aimée.
  • Signature Pokémon: Mawile & Porygon


Beta 2.0.3

  • Fixed an issue regarding Salamence’s cry;
  • Fixed an issue regarding Electivire’s learnset;
  • Fixed an issue regarding Tinted Lens description;
  • Fixed some typos;
  • Doduo, Mr.Mime and Houndour added to Talrega’s wonder trade;

Beta 2.0.2

  • Fixed an issue regarding traded Pokémon obedience (tag me if it happens again);
  • Removed the use of Field Moves (Waterfall, Dig, etc) from the Pokémon Menu;
  • Added Farfetch’d (Galar) and Sirfetch’d (check the documentation later);
  • Fixed some typos.
  • Fixed some movement permissions.

Beta 2.0.1

  • Fixed an issue regarding Dawn Stone not working on Kirlia;
  • Fixed an issue regarding Link Stone not working on Haunter;
  • Fixed an issue regarding Brave Bird having less PP than intended;
  • Fixed an issue regarding shiny Pokémon appearance after trading with the bug catcher at the Krabby Club;
  • Fixed some typos/errors;
  • Fixed some movement permissions;
  • “Waterfall” added to Whiscash, Quagsire, and Poliwrath’s learnset.

Useful Stuff



Previous Versions



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