Pokemon Radical Red

Pokemon Radical Red

Download Pokemon Radical Red GBA Rom Hack (Pre-Patched)

Pokemon Radical Red is a GBA ROM Hack by Yuuiii based on Pokemon Fire Red. It is now available to download  in English and It was last updated on August 3, 2023.

  • Creator: Yuuiii
  • Version: 4.0
  • Hack of: FireRed
  • Updated: August 3, 2023


I’ve been playing Pokémon ROM hacks since I was a kid, beginning with Quartz, Ruby Destiny Reign of Legends, and Shiny Gold, all of which fueled my obsession and turned me into a community lurker for a long time. Although I attempted to make one myself, I simply lacked the necessary knowledge and dedication. Now, around 10-12 years later, having seen how far ROM hacking has progressed and having gained more confidence in my abilities, I’ve decided to revisit developing my own ROM hack.

There’s no shortage of fire red enhancement hacks these days, so you’re probably wondering what this one has to offer. Personally, I prefer difficulty hacks, which is why I consider Clover and Vega to be the best ROM hacks available.


This hack is essentially a difficulty hack with extra features, similar to Drayano60’s enhancement hacks, which provide access to nearly all Pokemon while also adding relevant buffs to make all sorts of different Pokémon and playstyles viable, and with an insane amount of quality of life features added to make many gruelling tasks far less tedious.

While I’ve handled the most of the technical elements, my friend koala4 has been useful in balancing, offering recommendations, doing the majority of the wild Pokemon locations, testing, and more.


This hack utilizes the Complete FireRed Upgrade engine (!!!!) and Dynamic Pokemon Expansion built by Skeli789, Ghoulslash, and others. It’s responsible for most of the significant features in the hack; I’ll list the important ones below.

Provided by CFRU & DPE

  • Physical/Special split + Fairy Typing
  • All Pokémon up to Gen 9 are obtainable (with some exceptions, see further down)
  • Moves up to Gen 9, including some of the Isle of Armor DLC moves!
  • Updated Pokémon sprites
  • Mega Evolution
  • Abilities up to Gen 9
  • All important battle items (with some exceptions)
  • Raid Battles
  • Reusable TMs
  • Expanded TM list
  • Additional move tutors
  • EV Training Gear
  • Ability popups during battle
  • Gen 8 Exp Share
  • Hidden Abilities
  • Day and Night
  • DexNav allows you to search for Pokemon with hidden abilities and other neat things!
  • Even faster turbo speed (!!!)
  • Abilities like Magma Armor have field effects like recent Gens
  • Destiny Knot, and Everstone have updated breeding mechanics
  • … and more!

Additional Features

Do keep in mind many of these are also provided by CFRU.

  • Much higher difficulty
    • Bosses have max IVs with proper EV spreads (barring the early bosses), along with optimized movesets/hold items
    • Improved AI
    • Battle style forced to Set
    • Can’t access bag against Gym Leaders and other select bosses
    • Similar to Pokemon Clover, there is a soft level cap based on the next boss battle. Many “challenge” hacks can easily be beaten by simply spamming turbo boost and overlevelling. This prevents you from doing so, instead allowing you to reevaluate your team and strategy to defeat bosses.
    • Bosses near the end will randomly choose between 1 of 3 teams
    • Elite Four Members each have a Legendary
    • Gym Leaders have access to Mega Evolution before you do
    • Some optional side bosses will have their levels scale according to your team
    • Johto Gym Leaders as additional side bosses(Some mandatory, but mostly optional)
    • Brendan as an additional Rival
    • Archer and Ariana present as Admins
    • Thief/Magician won’t steal from trainers
    • An additional Team Rocket event right before the 8th gym
  • My own curated buffs to a lot of deserving Pokémon, including Megas!
    • May include type changes, stat changes, ability changes, an additional learnsets
  • Brand new abilities (Some taken from Clover, others exclusive to this game)
  • A revamped Game Corner
    • No more coins/Coin Case, just exchange with regular Pokecoins
    • Sells pseudo legends for a steep price, with options to upgrade to Shiny
    • Sells even more TMs
  • IV grade and colored natures on Summary Screen
  • An IV perfecter in Celadon for a very steep price
  • EV checker/reducer in Saffron
  • An ability swapper also in Saffron, along with an option to swap to Hidden Ability in exchange for an item
  • EV training areas with its corresponding EV training gear
  • Move relearner moved to Cerulean
  • Move tutor that teaches Egg moves
  • Additional Legendaries obtainable before the Elite Four:
    • Virizion, Cobalion, Terrakion, Keldeo.
    • Roamers: Raikou, Suicune, Entei, Landorus, Thundurus, Tornadus, Latios, Latias, Victini, Meloetta
  • Gym leaders may ask for rematches or side quests for their Mega Stones and other rewards
  • Day care south of Cerulean now can hold two Pokemon allowing for earlier breeding
  • … and more!

Unobtainable Pokemon as of Version 3.0

  • Regigigas
  • Lugia Ho-Oh Groudon
  • Rayquaza Dialga Palkia Giratina
  • Reshiram Zekrom Kyurem-Black Kyurem-White
  • Xernas Yveltal
  • Zacian Zamazenta Eternatus Calyrex forms
  • Deoxys Darkrai
  • Arceus Marshadow
  • CFRU features (Mega Evolution, Gen 1-8 Pokemon)
  • Hisuian Forms
  • Dynamax Raid Battles
  • Much higher difficulty
  • No need for teaching HMs
  • Curated buffs to a lot of deserving Pokemon
  • Brand new abilities
  • A revamped Game Corner
  • IV grade and colored natures on the summary screen
  • An IV perfecter in Celadon for a very steep price
  • An ability swapper also in Saffron
  • EV training areas with their corresponding EV training gear
  • Move tutor that teaches Egg moves
  • Additional Legendaries obtainable before the Elite Four
  • Cannot use items during trainer battles
  • Gym leaders may ask for rematches or side quests for their Mega Stones and other rewards
  • See the official thread for a more detailed list

Changelog v4.0

Note: This is just a brief summary of the actual changelog. If you want to read it in detail in its entirety, you can do so by clicking on the ‘changelog’ button in the useful stuff section.

  • New Dex! Check out https://radicaldex.pixelslug.eu/ for the up-to-date pokemon changes!
  • Added all Gen 9 Pokemon and Gen 9 Moves/Abilities
  • Gym rematches are now required in non-Hardcore mode before fighting Koga
  • Route 20 now has permanent snow [Pryce Location]
  • TM Changes
  • A lot of Pokemon Changes
  • A lot of Move/Ability Changes
  • Pokemon Evolution Changes
  • Raid Changes
  • Critical Bug Fixes From 3.1
  • Updated, Added & Fixed a lot (a lot) of other stuff (check the full changelog for more info)

Old 3.1 saves are compatible, but you might lose out on some of the new pokemon and items! Progress on your Pokedex can also be reset! It is highly recommended that you start a brand new save from the beginning!

Useful Stuff

Also, check out these rom hacks:



Previous Versions


Yuuiii, koala4, Noodlewhiz, Ghabra, Khaospire, Daina, mossedUp, Sergio, Gress, moods, Xan

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