Pokémon Gensou Emerald Version (GBA) – Emerald ROM Hack with Custom Touhou-Inspired Type System
Game Information
Table Of Contents
About This ROM Hack
Pokémon Gensou Emerald Version is a reimagining of Pokémon Emerald that replaces the traditional Pokémon type system with a completely new type chart inspired by the Touhou fan game 幻想人形演舞. Built on pokeemerald-expansion, the hack modernizes Hoenn with updated battle mechanics, expanded Pokémon availability, and a wide range of quality-of-life improvements.
The game is designed to be fully completable in single-player, with no trading required, and introduces subtle but meaningful difficulty increases compared to vanilla Emerald. The intended challenge level is comparable to the hardest official mainline Pokémon games, without crossing into unfair or grind-heavy territory.
Key Features
Completely New Type Chart: The traditional Pokémon type system has been replaced with a brand-new chart inspired by 幻想人形演舞, encouraging players to learn matchups organically through experimentation.
Reworked Pokémon Data: Pokémon have updated movesets and abilities designed specifically to function within the new type system.
Modern Battle Engine: Battle mechanics are updated to be consistent with Pokémon Scarlet and Violet standards.
New and Updated Moves: Several moves have been added or modified to better support the new mechanics and typings.
Status Condition Changes: Freeze has been replaced with Frostbite, aligning with modern Pokémon mechanics.
Quality-of-Life Battle Rules: A Sleep Clause is enforced to prevent excessive sleep strategies.
Move Reminder Improvements:
- Move Reminder is accessible directly from the Pokémon status screen
- Egg Move Tutor replaces the original Move Reminder location
Visible Day–Night Cycle: Outdoor areas visually reflect the passage of time, affecting the atmosphere and immersion.
Reduced HM Reliance: Late-game HM requirements have been streamlined to reduce forced party constraints.
Following Pokémon System: HGSS-style following Pokémon allows party members to appear behind the player in the overworld.
Expanded Regional Pokédex:
- Approximately 300 Pokémon
- Fully completable in single-player
Trainer Overhauls: All vanilla trainers have been changed or buffed, except Gym Leader rematches and Battle Frontier sets (planned for future updates).
Numerous Minor Enhancements: Includes new item placements, new TMs, uncapped EVs, and many small mechanical adjustments throughout the game.
Known Bugs & Issues
- Gym Leader rematches and Battle Frontier trainer sets are not yet updated.
- Balance and content may change as development continues.
- Some planned features and trainers are still unfinished.
Screenshots
Download Links
Developer Information
Developer / Team: Monad-2
Credits:
- Pret – pokeemerald base
- rh-hideout – pokeemerald-expansion
- Developer – All new overworld scripting, data changes, new graphics
- Scyrous, Yak Attack, Kurausukun, Zatsu – Egg Move Tutor scripting inspiration
- Queen Neptunia – Active playtesting
Source & References
Official Thread / Website: Pokecommunity
Frequently Asked Questions
Q: Who is this hack for?
A: This hack is for players who want a fresh Hoenn experience, enjoy learning new mechanics, and are interested in a custom type system inspired by Touhou-style gameplay.
Q: How difficult is the game?
A: Difficulty is higher than vanilla Emerald, but designed to match the hardest official Pokémon games rather than extreme difficulty hacks.
Q: Can the Regional Dex be completed solo?
A: Yes. The expanded Regional Dex is fully completable in single-player.
Q: Does the story change?
A: No. The main Emerald storyline remains intact, with gameplay and mechanical changes layered on top.