# Digimon Rumble Arena: matching PlayStation decompilation

> Digimon Rumble Arena decomp reconstructs the Japanese and USA PlayStation releases as C and assembly that the author reports rebuilds the executable and 13 code overlays byte for byte. GCC 2.95.2, splat and objdiff support the matching workflow; remaining overlay functions are still assembly.

- 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/ReGame-Labs/dtbe_decomp>
- Primary source: <https://github.com/ReGame-Labs/dtbe_decomp/blob/eb7608682148e0c27645dcd45324ebfd26498fa8/README.md>
- Catalog page: <https://awesomerea.org/resources/digimon-rumble-arena-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/digimon-rumble-arena-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/digimon-rumble-arena-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** An original Japanese or USA game disc image.
- **Prerequisites:** Linux build tools including MIPS binutils, Python and the specified GCC 2.95.2 workflow.
- **Limits:** Many overlay functions remain as assembly.
- **License:** MIT licence.

## Primary sources

1. <https://github.com/ReGame-Labs/dtbe_decomp/blob/eb7608682148e0c27645dcd45324ebfd26498fa8/README.md>
2. <https://github.com/ReGame-Labs/dtbe_decomp/blob/eb7608682148e0c27645dcd45324ebfd26498fa8/src/README.md>

## More in Games

- [Digimon World 2003: byte-matching decompilation and PC port](https://awesomerea.org/resources/dw2003-recomp/index.md) · Case study
- [Digimon World 2: a matching PlayStation decompilation](https://awesomerea.org/resources/digimon-world-2-decomp-case/index.md) · Case study
- [Digimon World 3: matching PlayStation decompilation of three regional releases](https://awesomerea.org/resources/digimon-world-3-decomp-case/index.md) · Case study
- [Digimon World 4: a matching PS2 decompilation](https://awesomerea.org/resources/digimon-world-4-decomp-case/index.md) · Case study
- [Digimon World DS: matching Nintendo DS decompilation](https://awesomerea.org/resources/digimon-world-ds-decomp-case/index.md) · Case study
- [Digimon World: a PS1 decompilation with binary comparison](https://awesomerea.org/resources/digimon-world-decomp-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.