Pokémon Alolan Seaglass teases a new GBA ROM hack series

Pokémon Alolan Seaglass already looks like the kind of project Retro Game Emulation players keep on a watchlist: a GBA ROM hack with a custom-built Alola Region, GBC-like graphics, and enough new ideas to suggest Nemo622 is building a proper sub-series, not just another one-off patch.

That matters because Nemo622’s earlier Seaglass work has real momentum behind it. Pokémon Emerald Seaglass was distributed on Ko-fi as a free IPS patch with optional donations, and the 3.0 release page listed a patch file, a documentation PDF, and patch notes, alongside a striking 162.1K sold. A prior creator post described that hack’s look as GBC-like and added features such as DexNav and following Pokémon, while Ko-fi said the game overhauled the graphics, expanded the Pokédex, and brought Hoenn to life in new ways. In other words, Seaglass already has a recognizable identity, and Alolan Seaglass is inheriting it.

Nemo622’s broader toolkit also makes the new project feel technically credible. The GitHub README for the base says it supports almost all Pokémon from Generations 1 through 7, including Alolan, Galarian, and Hisuian forms and evolutions. That kind of groundwork helps explain why an Alola-themed hack is possible without feeling like a stretch. It also fits Nemo622’s recent run of full-region fan projects, including Pokémon Lazarus, which Retro Dodo said was set to release on November 14 and takes place in the Ilios Region, a world inspired by Greece. A YouTube description for Lazarus said it includes 400 Pokémon spanning all 9 generations.

Alolan Seaglass is still early, but the teaser material already gives it a clear visual lane. Nemo622 has shown images of the theme, menus, and battle presentation, and the Adventure Log appears to feature Z-Crystals, which hints at Z-Moves being part of the design. Bird-themed artwork and island-like battle borders point toward a tropical tone that fits Alola better than a straight remake would. Nemo622 also described the hack as a story-forward project with a faster opening, more Pokémon, and other playful changes.

There is no release date yet, and the one-person nature of the project means patience will matter. Even so, Alolan Seaglass already has the two things that make a ROM hack worth tracking closely: a creator with a proven audience, and a design language that looks ready to carry from Hoenn into Alola without losing its edge.