Pokémon Forbidden Memories (GBA) – A Yu-Gi-Oh! Card RPG Built Inside Pokémon Ruby
Game Information
Original Game (ROM Base): Pokémon Emerald
Hack Status: v0.9.5.2
Language: English
Content Type: New Region, Fakemon, Story, Additional Story, Post-Game Content, Custom Dex
Table Of Contents
About This ROM Hack
Pokémon Forbidden Memories is a Pokémon Emerald ROM hack that completely transforms the game into a Yu-Gi-Oh! Forbidden Memories adventure. While the project keeps the exploration and progression style of the original Pokémon game, its map, story, characters, and progression have been redesigned around the world and events of Forbidden Memories.
The goal is to recreate the world, story, and atmosphere of Yu-Gi-Oh! Forbidden Memories while maintaining a balanced and accessible gameplay experience. The project is designed both for longtime fans of Forbidden Memories and players discovering the game for the first time.
The hack features a new map based on Forbidden Memories, its characters, and a custom collection of 202 cards. It also includes additional gameplay elements such as level scaling, new items, HM improvements, running shoes, exploration-focused content, and post-game content.
Version 0.9.5.2 was released on August 7, 2026, with sprite improvements and event fixes.
Story Overview
Pokémon Forbidden Memories follows the complete Yu-Gi-Oh! Forbidden Memories story, with the adventure redesigned to fit the Pokémon Emerald engine.
The map, characters, and progression have been changed to follow the events of Forbidden Memories rather than the original Pokémon Emerald storyline. The project aims to recreate the original game's world and atmosphere while allowing players to experience its story through a Pokémon ROM-hack format.
The available information does not provide a detailed scene-by-scene account of the story, so the main confirmed story focus is its recreation of the Forbidden Memories adventure and its characters.
Key Features
- Complete Forbidden Memories Story: Experience a recreation of the complete Yu-Gi-Oh! Forbidden Memories story within a Pokémon Emerald-based adventure.
- Forbidden Memories Map: Explore a full map based on the locations and world of Forbidden Memories rather than the original Pokémon Emerald region.
- Yu-Gi-Oh! Characters: The hack includes the characters from Forbidden Memories, bringing the game's cast into the Pokémon engine.
- 202 Cards: Collect and use a custom collection of 202 cards based around the Forbidden Memories concept.
- Yu-Gi-Oh! Adventure: Pokémon Forbidden Memories replaces the traditional Pokémon setting with a Yu-Gi-Oh!-focused experience while retaining the exploration and progression structure of a Pokémon game.
- New Region: Travel through a redesigned world instead of the standard Pokémon Emerald setting.
- Custom Dex: The hack features a custom Pokémon/card-oriented dex suited to its redesigned gameplay and Yu-Gi-Oh! theme.
- Fakemon: Custom creatures are included as part of the hack's non-traditional content.
- Level Scaling: Pokémon Forbidden Memories includes level-scaling mechanics as part of its redesigned progression.
- New Items: The project adds new items to support its custom gameplay experience.
- Post-Game Content: Additional content is available after completing the main adventure.
- Exploration: Exploration remains an important part of the gameplay despite the major changes to the setting and story.
- HM Improvements: HM-related gameplay has been improved compared with the original Pokémon Emerald experience.
- Running Shoes: Running shoes are available to make movement and exploration more convenient.
- Vanilla Graphics: The hack retains a visual style based on the original Pokémon Emerald graphics while introducing its themed content and custom assets.
- Sprite Improvements: Version 0.9.5.2 includes sprite improvements alongside event fixes.
Known Bugs & Issues
- Version 0.9.5.2 includes event fixes, but no specific remaining bugs are listed in the provided information. As the project is still at version 0.9.5.2 rather than a final release, players should refer to the latest documentation for any known issues or updates.
Screenshots
Download Links
v0.9.5.2: Mediafire
Developer Information
Developer / Team: Nato_pixador
Credits:
- Card Sprites: Card sprites were based on cards from the classic Game Boy Yu-Gi-Oh! titles Yu-Gi-Oh! Duel Monsters II: Dark Duel Stories and Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelists.
- Millennium Items: Millennium Item sprites were based on Yu-Gi-Oh! Reshef of Destruction.
- Character Mugshots: Character mugshots were based on Yu-Gi-Oh! Dark Duel Stories.
- Special Thanks: Kazuki Takahashi and the Pokémon ROM Hacking Community.
Source & References
Official Thread / Website: https://www.romhacking.net/hacks/9510/
Frequently Asked Questions
Q: Who is this hack/game for?
A: This hack is for players who enjoy both Pokémon and Yu-Gi-Oh! and want a completely different gameplay experience.
Q: How many cards are available?
A: There are over 300 cards, with more added in updates.
Q: Are the Egyptian Gods obtainable?
A: Yes, Obelisk, Slifer, and Ra replace the Regi trio and can be obtained through similar methods.
Q: Does the game follow the Ruby story?
A: It follows a modified version of Hoenn, but the focus is on dueling rather than Pokémon training.
Q: Is the hack fully polished?
A: Not entirely—some visuals and text still reference Pokémon due to engine limitations.
Q: Is the game difficult?
A: Difficulty has been balanced, especially in the Elite Four, but depends on your card strategy.