Pokemon Ultra Shiny Gold Sigma (Updated)


Prepare for an ultra Pokemon Game Boy Advance gaming experience, introducing an improved version of Pokemon Shiny Gold Sigma.

The Pokemon Ultra Shiny Gold Sigma by Zel and Alex is finally released and now includes lots of new features, some changes, bug fixes, and improvements from the previous version.

There are over 807 Pokemon in Ultra Shiny Gold Sigma and added support to Mega evolution and various changes to sprites, structures, moves, and abilities. The 15,000+ Facebook fans of Ultra Shiny Gold Sigma can’t go wrong for supporting this game and you should too. Get this game now play it on your favorite GBA emulator.

Game Information

Ultra shiny gold sigma cover

Pokemon Ultra Shiny Gold Sigma
Author: Alex and Zel
Game base: Pokemon FireRed
CheatsClick here
Updated: February 28, 2021
Official guide: Click here


  • 807+ Pokemon from Generation I to VII and Alola forms
  • Mega Evolution
  • Rightful evolution at every single Pokemon
  • New evolutionary stones
  • New items
  • A simulated Wonder Trade system, called Miracle Exchange
  • The Battle Frontier facilities are scattered throughout the game
  • An EV-IV screen is available to help manage your Pokemon stats
  • New effects added
  • Competitive stuff available
  • Fly everywhere
  • All Gym Leaders offer rematches in Johto, Kanto, Orange Islands and Hoenn
  • Badges as Crystal order and colored
  • Improved graphics, colorful & elegant
  • System clock automatically walk with 5 changes (Dawn, Day, Afternoon, Dusk, Night)
  • System clock automatically walk with 7 weather times
  • New sprites include: main character minisprite, places, tiles, trainers, Pokémon sprites, Several new overworld, battle, and trainer sprites, several graphs, etc.
  • Pokemon more likely to capture that were previously rare (Hoenn, Sinnoh, Unova, Kalos and Alola species)
  • Sounds remastered & enhanced, more aligned to Pokemon Crystal version
  • Similarity to Anime occurrences & new rivals accorded to Manga
  • Leaders reinforced, stronger Gym Leaders. Lorelei, Agatha, and Giovanni also make an appearance, more difficult & new Ex-Elites
  • New objects, new main characters, history, places, music, events.
  • New abilities, new attacks.
  • New Pokémon icons, new trades, Bicycle fixing, new in-game trades, new quality of life improvements
  • Complete Pokémon Location and available Pokédex to index them all
  • Battle Frontier Battle Tower facility
  • Rufflet and Vullaby can now be obtainable at route 45
  • Hoenn is up to Route 117 – Vendarturf Town (ORAS Style)
  • Jolteon, Flareon, Vaporeon, Leafeon, Glaceon, Sylveon, Mightyena and Decidueye can now learn shadow ball
  • Rockruff can now be found in Dim Deep Cave
  • Navel Cable Car

Fixes/Adds/QoL updates

  • Ending league and Ship Rocket’s event issue.
  • New few moves, they will be rare to find though!
  • New eeveelutions founded in the game code.
  • Sinnoh Starters spawns at Cherrygrove City, extremely rare.
  • Starter spawns have been a bit increased. If you want a Pokémon to has increased odds just ask us.
  • New Pokémon like Galarian Legendary Birds, Regidrago, Regieleki, Zarude, and Kanto galarian forms.
  • Meltan and Melmetal from Pokémon Let’s GO/Pokémon GO are now available in SGS.
  • Move improvements, includes MLucario, MGardevoir, MAltaria, MBlaziken. MSceptile, and more.
  • Acording to new Pokémon games, now HM are forgettable, working as regular moves.
  • If the stairs at Mahogany Gym doesn’t work, a hole at the penultimate gym map will sent you to the right path.
  • Fixed the issue regarding the Egg pickup over Violet (It says now Pokémon Mart).
  • Minor issues with Goldenrod and Ecruteak houses.
  • The Wonder Trade lady was moved to Viridian City.
  • Rockruff can now be found in Dim Deep Cave.
  • Rockruff evolves into Midnight Lycanrock when Attack equals Defense at level 23.
  • Dazzling Gleam doesn’t hit always effect.
  • Battle Frontier Battle Tower facility.
  • Stability and various bug fixes, performance updates.
  • Portkey WormHoles will be activated with a secret event all around the regions. Test yourself and look for them! Portkey WormHoles will allow you to time-travel and find rare unique places and creatures!
  • Hoenn is up to Mauville City (ORAS Style) and Route 118 beta.



Pokemon Ultra Shiny Gold Sigma Download

Featured Video


  1. Does someone know what happened to the rom’s facebook page?
    It suddenly disappeared and now there’s no way to check on the progress of the rom.

  2. Just started playing this hack today (v1.3.8) and found a soft lock. When you wipe out before reaching Cherrygrove City, you get send “back” to the PokeCenter in Viola City. Trying to go to other places in the town are getting denied with message that you need to go to professor Elm. You can also pick up the mystery egg from professor Oak and trigger the rival fight as well as the fight with the lorekeeper. But you can’t show the egg to Elm to progress the story or talk to your mother to get the amulet coin or the sprint shoes. Additionally items were spawned in locations that normally doesn’t have items. The reason the story can’t progress is (I believe) that you already have visited Viola City, so the game thinks you already got the items from you mother as well as showed the egg to Elm (hence why they don’t trigger their respective events). This also effects the two battling trainers on the road above Cerrygrove City, who are blocking your path. They don’t disappear because you never showed the egg to Elm. In regards to the random item spwans, I think the game got confused on what scripts to load and loaded some other data as scripts causing the items to spawn.

  3. Hi! I was wondering if anyone was aware of any increase in the number of boxes in the pc? I have not updated from the previous patch just yet, but I know a few newer games have a larger number of boxes to allow for completion of the pokedex and the various forms of pokemon. Thanks!

  4. Im having kind of a problem, after the bellsprout tower and after beating the 1st Gym when i walk down the road to go towards azalea town theres a guy that keeps saying “you gotta beat the gym first” i beated the damn gym, why this dude wont let me pass?

    • I’m having this problem, too! I can’t find where the assistant is to give you the egg, wondered if this was the cause? Thought he was supposed to be in the pokemon center.

    • From the official walkthrough guide: “About legendary dogs, Suicune is
      at Tin Tower, Raikou at Mt. Mortar and Entei down
      Blackthorn, random all of them.”

      I found Suicune right at the entrance of Tin Tower.

  5. I might have found a bug…sometimes my machop using fighting attacks against normal type pokemons such as sentret doesnt have a supper effect…reply if i am wrong please.(this was discovered in the third gym of the first map)

  6. I love the game. My problem is, when I cheat shiny mons on, it won’t evolve, it just say “?”. I keep evolving it but nothing is happening, is there any solution that can fix it?

    • Hmm… I recall we had a similar issue two other people described something like this in the other comment section on the Cheats page.
      I could reconstruct this kind of scenario, when I tried to evolve or caught Pokemon before i got the Pokedex. Have you done one of that?
      And could you please give us further information on what cheats you used?

  7. this game looks good but I’m trying to find a game where I can set my character on a route and let him walk around and battle for me while I’m working. Does anyone know if there is a pokemon game like this? if you do it would be supper helpful!!!!

    • In your Emulator should be a Cheat Option in the Menu. Using MyBoy is the following:

      Open Emulator -> start your Game -> when in Game, open Emulator Menu (Square Button with three horizontal Lines in the Middle between L and R Button) -> click on Cheats -> add new Cheat (Plus Sign in top right Corner) -> enter Codes, name it and save it -> close Menu by clicking back Button (in my Case sometimes need to hit it twice or three times?) on your Phone to go back into Game -> check if Cheat is working.

      p.s. if a Cheat Code is longer and needs several Code Lines, simply enter each Code Line as a new Cheat and activate all of them together

      • Thanks for another detailed explanation Aedrias. I very much appreciated your help answering crucial answers like this.

    • I used to be excited about it but for me at this point it’s unplayable. I’ve uninstalled and reinstalled a few times and i am still getting this bug where my pokemon are not listening to me even though I have a gym badge and my level isn’t too high. So this is really frustrating and Idk about you but for me it’s just not worth it.

  8. I would love to play this game again, it was fantastic to have access to every gen at once, but is the bad egg glitch fixed or is there a way to get around it? It made the game totally unplayable. I tried multiple playthroughs, every time making it about halfway through the game, when bad eggs started appearing, specifically in box 6. So many hours down the drain! Has this been resolved?


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