# GX Spirit Caller Decomp: a three-region matching DS reconstruction

> GX Spirit Caller Decomp reconstructs Yu-Gi-Oh! GX Spirit Caller for the European, US and Japanese Nintendo DS releases using C and assembly. The author reports byte-identical ROM builds across all three regions; much matching assembly still awaits conversion into readable C.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/cntrl-alt-lenny/gx-spirit-caller>
- Primary source: <https://github.com/cntrl-alt-lenny/gx-spirit-caller/blob/aae320d091b23527841eefa275b4496d1967706f/README.md>
- Catalog page: <https://awesomerea.org/resources/gx-spirit-caller-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/gx-spirit-caller-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/gx-spirit-caller-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** A clean user-supplied ROM dump for the selected region is required.
- **Prerequisites:** The build uses dsd, mwccarm/mwldarm, Ninja and objdiff.
- **Limits:** Byte-identical ROM reconstruction includes assembly; readable C recovery remains incomplete.
- **License:** MIT licence.

## Primary sources

1. <https://github.com/cntrl-alt-lenny/gx-spirit-caller/blob/aae320d091b23527841eefa275b4496d1967706f/README.md>

## More in Games

- [Halo 2: an agent-assisted matching decompilation of an LTCG Xbox build](https://awesomerea.org/resources/halo2-matching-decomp-case/index.md) · Case study
- [Hamtaro: Ham-Ham Heartbreak: a matching GBA decompilation](https://awesomerea.org/resources/hamtaro-heartbreak-decomp-case/index.md) · Case study
- [Harry Potter and the Half-Blood Prince: function-level Windows decompilation](https://awesomerea.org/resources/harry-potter-half-blood-prince-decomp-case/index.md) · Case study
- [Harry Potter and the Sorcerer's Stone: a GBC disassembly](https://awesomerea.org/resources/hpss-disassembly-case/index.md) · Case study
- [Harvest Moon 64 Decomp: matching decompilation of Harvest Moon 64](https://awesomerea.org/resources/hm64-decomp-case/index.md) · Case study
- [Harvest Moon GB Disassembly: reconstructing the Japanese Game Boy ROM](https://awesomerea.org/resources/harvest-moon-gb-disassembly-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.