Pokemon Odyssey GBA Cartridge + Collectors Box

Pokémon Odyssey GBA Retro Cartridge + Collector’s Box by hipora — a crossover of Pokémon, Etrian Odyssey, and Made in Abyss. Enter the Yggdrasil Labyrinth in a story-driven dungeon-crawler where Gyms and evil teams are gone, double battles are the rule, and survival depends on exploration, synergy, and strategy.

This is Pokémon Odyssey (v4.1), a complete ROM hack for real Game Boy Advance hardware, pre-flashed on a quality cartridge with hipora-designed art for both the cart label and the display-ready collector’s box.

What to expect

New story & region: Play as Nyx and uncover the mysteries of the Yggdrasil Labyrinth with companions Ethan and Olympia, and in the shadow of her sister Aimée.

Exploration over tradition: No Gyms, no Elite Four—progress comes through the labyrinth, quests, and hidden lore.

Always double battles, soft level caps, no healing items in battle.

Etrian-inspired features: Mining & Gathering points, FOEs, naval exploration, shop upgrades.

Expanded roster: Gens I–III, cross-gen evolutions, and new Etrian variants.

QoL upgrades: EV/IV screen, nature coloring, Wonder Trade, and Gen VI-style Exp. Share.

Original soundtrack with a dark, mysterious atmosphere.

What’s included

Pokémon Odyssey GBA cartridge by hipora

Premium collector’s box with custom artwork

Protective sleeve; tested and ready to play