# Champions: Return to Arms: byte-matched PS2 function reconstruction

> Champions: Return to Arms reconstructs independently authored C++ for the US v2.00 PlayStation 2 game, checking complete functions against the original executable byte by byte. The author reports eight matching functions covering 64 bytes; the repository includes a function ledger, verifier and sanitized comparison receipt.

- 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/Open-Champions/champions-return-to-arms>
- Primary source: <https://github.com/Open-Champions/champions-return-to-arms/blob/adb1e7c3a9b1c41e86aed3f9f73cfef95c088c36/README.md>
- Catalog page: <https://awesomerea.org/resources/champions-return-to-arms-ps2-case/>
- Record JSON: <https://awesomerea.org/resources/champions-return-to-arms-ps2-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/champions-return-to-arms-ps2-case/index.md)

## Requirements & limits

- **Prerequisites:** Python 3.10+ is required for metadata checks and the synthetic test suite.
- **Prerequisites:** A user-owned SLUS_209.73 executable and MIPS-capable Clang are required for a fresh byte comparison.
- **Limits:** The reconstruction covers eight complete functions and has no complete linked PS2 executable or playable game.
- **License:** MIT license applies to the authored code and documentation.

## Primary sources

1. <https://github.com/Open-Champions/champions-return-to-arms/blob/adb1e7c3a9b1c41e86aed3f9f73cfef95c088c36/README.md>
2. <https://github.com/Open-Champions/champions-return-to-arms/blob/adb1e7c3a9b1c41e86aed3f9f73cfef95c088c36/LICENSE>

## More in Games

- [Chibi-Robo: PIA: matching GameCube DOL decompilation](https://awesomerea.org/resources/chibi-robo-pia-decomp-case/index.md) · Case study
- [Chronicle: matching decompilation and port of Dark Cloud](https://awesomerea.org/resources/chronicle-dark-cloud-case/index.md) · Case study
- [Chrono Trigger: a matching SNES US 1.0 disassembly](https://awesomerea.org/resources/chrono-trigger-us-disassembly-case/index.md) · Case study
- [ChronoRET: matching 65816 reconstruction of Chrono Trigger](https://awesomerea.org/resources/chronoret-case/index.md) · Case study
- [Chulip: matching reconstruction of the USA PlayStation 2 game](https://awesomerea.org/resources/chulip-decomp-case/index.md) · Case study
- [Civilization II: matching decompilation of two PlayStation executables](https://awesomerea.org/resources/civilization-ii-ps1-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.