Pokémon Jupiter Version (GBA) – Golden Sun-Inspired Ruby Hack with Telepathy, Music Systems, and Original Region Sunen
Game Information
Table Of Contents
About This ROM Hack
Pokémon Jupiter Version is a long-term ROM hacking project set in the original region of Sunen. It blends traditional Pokémon gameplay with heavy narrative experimentation, custom systems, and a strong emphasis on music, characters, and atmosphere.
Unlike standard Ruby-based hacks that only modify gameplay balance or regions, Jupiter introduces a highly customized experience that includes new instruments, expanded audio systems, and even experimental mechanics like telepathy between Pokémon and NPCs. The hack also integrates crossover-inspired storytelling elements, drawing thematic influence from Golden Sun while still remaining structurally a Pokémon adventure.
The player does not just explore a modified Hoenn-style world; instead, they are dropped into a completely reimagined setting tied to a broader mythological conflict involving portals, civilizations, and displaced characters from another world. The result is a more narrative-heavy and experimental Pokémon experience compared to typical GBA hacks.
At its core, the project is ambitious and modular, released in beta “versions” over time, with systems like Fakemon design, music implementation, and scripting evolving gradually across updates.
Story Overview
The story of Pokémon Jupiter Version begins in the ancient Mynoan Civilization, a world facing catastrophic destruction due to a massive flood known as the Deluge. As the civilization collapses, only the highest point of its capital remains above water.
Two figures, Ivan and a mysterious man named Charon, escape this dying world through a portal that transports them into the Pokémon universe. Before separation, Charon instructs Ivan to find him again, hinting at a larger unknown purpose behind their arrival.
Ivan awakens on Route 300 near Aleph Town, where he is discovered by Fabio Pink and taken in. Shortly after, he becomes involved in local events and meets a trainer named Rachel during a Pokémon attack incident. This encounter sets him on a journey that quickly expands beyond a simple regional adventure.
As Ivan travels through Sunen, he becomes entangled in a deeper mystery involving his origin, Charon’s disappearance, and the connection between the Mynoan world and the Pokémon world. Along the way, he encounters familiar archetypes, cameos, and myth-inspired characters, including leaders drawn from Golden Sun references.
The narrative gradually unfolds into a larger conflict involving legendary forces, hidden civilizations, and experimental Pokémon phenomena. The full story is intentionally fragmented across releases, encouraging exploration and discovery.
Key Features
- Telepathy System (Experimental): Certain Pokémon and NPCs can communicate thoughts directly, with plans for expanded “mind-reading” interactions in future updates.
- Original Region – Sunen: A fully custom region with its own geography, towns, and mythology inspired by ancient civilizations and fantasy RPG structure.
- Over 65 Custom Songs: A large original soundtrack system featuring a music box mechanic that allows players to listen to unlocked tracks during gameplay.
- Expanded Audio System: Includes over 95 Pokémon cries and multiple custom instruments, significantly altering the game’s sound identity.
- Fakemon Integration: A large roster of original Pokémon designs, including Easter Egg Pokémon inspired by crossover characters.
- Crossover Cameos: Characters from Golden Sun (such as Isaac, Garet, Mia, Jenna, Felix, Sheba, and others) appear as gym leaders or key NPCs, along with additional cameo appearances from pop culture references.
- Rearranged Pokédex: The Pokédex has been reorganized to fit the Sunen region structure and Fakemon additions.
- Custom Animation and Portrait System: Includes face portraits and Pokémon animations not present in standard Ruby.
- Hidden Easter Egg Pokémon: Special hidden Pokémon such as Hamma, Ivan, Garet, Stick, and others are integrated as secrets.
- Story-Driven Progression: Emphasis on narrative progression rather than traditional gym-only structure, with RPG-style storytelling elements.
- Improved Trainer Difficulty: Trainers are generally stronger than Ruby equivalents, with higher levels and improved team setups.
Known Bugs & Issues
- Contests: Currently, the contests feature some unusual behavior.
- Map Loading Errors: Some maps load incorrectly or cause the game to freeze.
- Moonlight Bug: The move Moonlight (renamed as B) does not function properly but is accessible in specific areas like the Battle Tower and Contests.
- Select Button Bug: Pressing SELECT without an item on the register causes a freakout message box.
- Sound Glitches: Certain sound effects, like rain, can behave unexpectedly.
- Glitchy NPC Interactions: Some NPCs are not properly implemented, and certain locations might warp incorrectly or freeze the game.
Screenshots
Download Links
v6.04: MediafireUnofficial Fix: Mediafire
Developer Information
Developer / Team: Corvus of the Black Night
Credits:
- Muriyashi: Provided 25-30 custom Pokémon sprites.
- Zodiac: Created an important ASM routine for the game.
- Various Contributors: Community members who assisted in beta testing and feedback.
Source & References
Official Thread / Website: https://www.pokecommunity.com/showthread.php?t=168594
Frequently Asked Questions
Q: What is Pokémon Jupiter?A: Pokémon Jupiter is a ROM hack of Pokémon Ruby, set in the world of Sunen, where players can interact with Pokémon in new ways, including telepathy and unique character cameos.
Q: Who is this hack/game for?
A: It’s best suited for players who enjoy experimental Pokémon hacks, crossover storytelling, Fakemon-heavy content, and RPG-style narrative twists beyond standard gym progression.
Q: What makes this hack different from normal Pokémon Ruby hacks?
A: It introduces telepathy systems, over 65 custom songs, face portraits, Easter Egg Pokémon, and crossover characters from Golden Sun, making it far more experimental than standard enhancements.
Q: Are there Fakemon in Pokémon Jupiter Version?
A: Yes, Fakemon are a major feature, including both fully original designs and hidden Easter Egg Pokémon inspired by crossover characters.
Q: How important is music in this hack?
A: Very important—there are over 65 custom songs and a dedicated music box system that allows players to listen to tracks during gameplay.
Q: Is the story linear or open-ended?
A: The story is structured but fragmented across beta releases, encouraging exploration and discovery of missing narrative pieces.
Q: Does Pokémon Jupiter Version have increased difficulty?
A: Yes, trainers are generally stronger than in Pokémon Ruby, and wild Pokémon levels scale to match progression, making it moderately more challenging.
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