Metroid: Zero Mission NX

Metroid: Zero Mission NX
An unofficial native Nintendo Switch homebrew port of Metroid: Zero Mission, adapted from tinaut1986/mzm, which builds on metroidret/mzm.

Switch maintainer: JJTapia_XX · Version: 0.1

This is a community project, unaffiliated with Nintendo. You must supply your own compatible GBA ROM dump. No ROM is included or provided for download.

AI-assisted development
AI tools, including OpenAI Codex, were used to help develop this Nintendo Switch adaptation, debug issues, and write documentation. JJTapia_XX directed the changes and tested builds on Switch hardware. AI assistance does not replace or diminish the work of the original developers and contributors. Their credits, copyright notices, and licenses are preserved. This is an experimental community project. AI-assisted changes may contain errors; please report issues through this repository.

Features
Native game logic, software GBA rendering, and native audio.
Three display layouts: R3 Second Screen Popup, Side by Side, and clockwise Flip Grip.
Touch map using the original pause-menu assets loaded from your ROM, with zoom and Follow controls.
Dedicated Map, Status, States, Achievements, and Options tabs.
Audio and display settings; saved master volume defaults to 50%, with gain up to 150%.
Five save-state slots, alongside normal in-game saves.
Optional Softcore RetroAchievements with offline caching, queued sync, badges, and unlock notifications.

Install
Download the installation ZIP from this repository's Releases page.
Extract it to the root of your Switch SD card. The application belongs at switch/mzm/mzmnx.nro.
Copy your own Metroid: Zero Mission GBA ROM dump to switch/mzm/mzm.gba.
Launch through your homebrew environment. USA ROMs have been used for testing; other regions have not been verified for this Switch adaptation.
Read Switch instructions for controls, builds, settings, and known limitations. The original 3DS README is preserved for upstream documentation; its features and installation instructions apply to the 3DS port.

Credits
This Switch adaptation is maintained by JJTapia_XX. It depends on substantial work by:

tinaut1986 — upstream 3DS port and shared native-port infrastructure.
metroidret/mzm contributors, including YohannDR — the decompilation project.
EstebanPdN / zelda-tmc-3ds — original platform/frontend foundation used by the upstream port.
Mathéo Vignaud / VirtuaPPU — software GBA rendering foundation.
devkitPro and switchbrew/libnx — Switch toolchain and platform libraries.
RetroAchievements contributors and rcheevos — achievement definitions, service, runtime, and parsers.
Sean Barrett and stb contributors — PNG decoding.
See CREDITS.md and THIRD-PARTY-LICENSES.md. Original copyright and license notices are retained. The NRO's Author field identifies the Switch maintainer; it does not replace these credits or imply sole authorship of the project.

Download: https://github.com/JJTapiaXX/Metroid-Zero-Mission-NX/releases