Pokemon Unova Emerald

pokemon unova emerald

Download Pokemon Unova Emerald GBA ROM Hack (Pre-Patched)

Pokemon Unova Emerald is an English GBA ROM Hack created by Jaizu, based upon Pokemon Emerald. The hack is now readily accessible for download, with its most recent update having taken place on July 7, 2023.

  • Creator: Jaizu
  • Version: Beta 2.0.2
  • Hack of: Emerald
  • Updated: July 7, 2023


The core of this game is predominantly Emerald, yet it incorporates the Unova regional dex. Alongside engine enhancements, numerous quality-of-life features have been introduced. However, its main focus lies in replacing the diverse array of wild Pokémon and trainer parties with those from the Unova region.


  • Replaced dex with Unova (bw2) regional dex.
  • Following Pokémon.
  • Updated battle engine, including moves, abilities, and AI.
  • Updated items to the later gens, including added items from gen iv and v.
  • Form system.
  • Plenty of quality of life changes, like last used ball, pressing b to run, running indoors


Beta 1.2.4

  • Resolved the persistent issue of encountering a black screen after defeating the Champion, ensuring a proper fix this time.
  • Enabled Palpitoad and Seismitoad to learn Waterfall and Dive moves.
  • Corrected Sidney’s Sharpedo’s level.
  • Addressed incorrect item descriptions in the Battle Frontier.

Known bugs

  • Currently investigating an issue with passing down natures even when using a Ditto and an Everstone.
  • Identified peculiar bugs in 1vs2 battles, such as incorrect string behavior and item malfunctions like Revive. Unfortunately, these stem from the engine and cannot be disabled; we await the engine’s fix for resolution.

Beta 1.2.3 Fixes

  • Set the EV cap consistently to 255 across all applicable areas, rectifying the inconsistency of 252 in certain cases.
  • Rectified the evolution process with held items, preventing Onix from evolving with random items.

Beta 1.1.0 Fixes

  • Addressed anomalies related to item functionality during battles.
  • Resolved issues with Rare Candies not functioning correctly.
  • Corrected erroneous cries.


  • Introduced the Extra Exp Mode, offering nuzlockers and level cap users the option to receive four times the experience.

Useful Stuff





What are the Shiny Odds?

With Shiny Charm:

Where can I obtain the Power Weight, Brace, Belt, Lens, Band, and Anklet items?

In the Trainer Hill price lists.

Where can I obtain Icy Rock, Damp Rock, Smooth Rock, and Heat Rock?

In the Trainer Hill price lists.

Where can I obtain Gen IV Berries?

They’re available as prizes in Slateport Battle Tent.

Is Emerald’s RNG fixed?


Did you remove Feebas spawns?

Feebas will be back once you defeat the Champion.

When can I catch Cobalion, Terrakion, and Virizion?

After you watch the Kyurem, Reshiram, and Zekrom cut scene.


Rom Hacking Hideout: Base engine

Merrp: Follower and day and night system

Paccy: Base images for followers + followers data for gen v mons. Code and data for the PWT.

Azure Keys: Idea for the game, inspired by Pokémon Unova Red

Citrus Bolt, Jaizu: Updated Pokémon Summary Screen

Citrus Bolt: Daily gym leader rematches. Make Flash permanent after using it one time, swarm system.

Timeless Shrine: Title screen

Farore: Main tree

Alistair: Tiles

Poffin Case: Object events

Hyo: Brendan sprites. Brendan and May object events

Squall: Tympole, Lillipup, and Cubchoo Dolls

Sapphire Jester: Show how much Ash you collected

Paccy: Let Pokémon use HMs without learning them

Start Gazaar: Ball sprites

Zekrom, Reshiram and Kyurem backsprites: Dreadwing93, Q.Dylm.

Q.Dylm: Sprite resize.

Deokishisu: Code, some help.

Ghoulslash: Showing sprites and description when obtaining an item.

Some overworld sprites: PurpleZaffre, UlithiumDragon, aveontrainer.

Gen V followers extracted from Generation 8 Pack for Essentials v20.1, with the follower credits: MissingLukey, help-14, Kymoyonian, cSc-A7X, 2and2makes5, Pokegirl4ever, Fernandojl, Silver-Skies, TyranitarDark, Getsuei-H, Kid1513, Milomilotic11, Kyt666, kdiamo11, Chocosrawlooid, Syledude, Gallanty, Gizamimi-Pichu, 2and2makes5, Zyon17,LarryTurbo, spritesstealer, LarryTurbo, joojishibuki

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