Pokemon Mystique

Download Pre-Patched Pokemon Mystique GBA ROM Hack

• Creator: mils
• Version: 1.1
• Hack of: Emerald
• Updated: August 18, 2025
• Language: English
• Status: Progressing

Pokemon Mystique is a GBA ROM Hack by mils based on Pokemon Emerald in English. And it is now available to download. It was last updated on August 18, 2025.

Description

As a member of the Weather Institute, you set out on a mission to the Eienn region, where strange and dangerous weather patterns are wreaking havoc across the land. Your task is to investigate these anomalies, battle wild Pokémon driven into chaos, and uncover the truth behind the disturbance.

Along the way, you will face powerful foes, unravel the mystery behind the abnormal climate, and fight to restore balance before the region is consumed.

⚠️Note: This game contains a plotpoint from the Pokémon Horizons anime. If you’re avoiding spoilers, do not play until you reach the Mega Voltage arc (when Ult and Lucario show up). This arc has not yet been dubbed.

Features

• A selection of Pokémon from every generation, available to showcase new weather effects such as Harsh Sunlight and Hail.
• Your boss provides you with several starter Pokémon, check your PC box when you first gain access!
• Time-based evolutions no longer require a specific time. Split evolutions now depend on held items such as the Sun Shard or Moon Shard (for example, Espeon/Umbreon).
• Comes with a Gen 6–style EXP Share (It’s off by default, but can be toggled from the Key Items menu).
• Freedom to nickname any Pokémon directly from the party menu, including traded Pokémon.
• Move Relearner and Deleter available for free in the first town.
• All trade evolutions are now fully tradeless
• Specialty shops provide easy access to all Poké Balls, Evolution Stones, and Berries.
• Includes most (if not all) comfort features from pokeemerald-expansion, like Physical-Special split.

Notes

• You can rebattle some trainers and they have no line-of-sight (which is an intentional sacrifice due to bugs in normal trainer battles…)

Changelog – What’s NEW!

Version 1.1 (Final Game Jam Build)

• Consolidated the tileset, fixing animations and graphical issues.
• Adjusted the Brume Parkway layout and hidden item areas.
• Added a custom texture for beach towels in Estiview.
• Added new trainers in Estiview Meadow.
• Boss battles can no longer be escaped from (fixes a bug).
• Added a new cutscene trigger.
• When loading old saves, you may need to leave the area and re-enter for things to display correctly.

Version 1.0.2

• Fixed cutscene, dialogue, collision, and general bugs.
• You now start the game with a Gen 6–style Exp. Share, which is off by default and can be enabled in the Key Items menu.
• For earlier saves, talk to the woman in the greenhouse to receive the Exp. Share.

Version 1.0.1

• Fixed the title screen palette.
• Trade evolutions are now fully tradeless (for example, you can evolve Porygon2).
• Castform now changes forms in the overworld.
• Minor tweaks and adjustments.

Screenshots

Downloads

Credits

Mils (eevee-expo) / Millaren (pokecommunity)

• Most assets were made by Game Freak or the Pokeemerald Expansion Contributors!