# Monster Hunter 2 (Dos): matching the PS2 boot executable and overlays

> Monster Hunter 2 (Dos) reconstructs the PS2 game's code as C and assembly for its original compiler. The author reports that the boot executable and twelve code overlays rebuild byte for byte, while licensed libraries and game data come from the user's version 1.04 copy. The repository also documents matching methods, function names and data structures.

- 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/Batenkaitos-dev/mh2-decomp>
- Primary source: <https://github.com/Batenkaitos-dev/mh2-decomp/blob/be45888369de99ee3cdbe7bc50b027b08e30afd8/README.md>
- Catalog page: <https://awesomerea.org/resources/monster-hunter-2-dos-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/monster-hunter-2-dos-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/monster-hunter-2-dos-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** A user's own NTSC-J version 1.04 disc image or extracted files are required.
- **Prerequisites:** Linux x86-64 or WSL 2 is required for the matching build.
- **Scope:** Licensed third-party libraries and game data are taken from the user's copy rather than reconstructed as C.
- **License:** CC0-1.0 license for the repository's source and tools.

## Primary sources

1. <https://github.com/Batenkaitos-dev/mh2-decomp/blob/be45888369de99ee3cdbe7bc50b027b08e30afd8/README.md>
2. <https://github.com/Batenkaitos-dev/mh2-decomp/blob/be45888369de99ee3cdbe7bc50b027b08e30afd8/CONTRIBUTING.md>

## More in Games

- [Monster Hunter Tri: a matching Wii decompilation](https://awesomerea.org/resources/monster-hunter-tri-wii-decomp-case/index.md) · Case study
- [Monster Hunter: matching decompilation of the Japanese PS2 release](https://awesomerea.org/resources/mh1j-decomp/index.md) · Case study
- [Monster Hunter: PS2 decompilation and PC/Xbox ports](https://awesomerea.org/resources/monster-hunter-ps2-pc-xbox-case/index.md) · Case study
- [Mortal Kombat: Deception: matching GameCube decompilation of the USA release](https://awesomerea.org/resources/mortal-kombat-deception-decomp-case/index.md) · Case study
- [Most Wanted Vehicles Decomp: matching vehicle physics from Need for Speed: Most Wanted](https://awesomerea.org/resources/nfs-mw-vehicles-decomp/index.md) · Case study
- [Mother 3: a Game Boy Advance decompilation](https://awesomerea.org/resources/mother-3-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.