# mlbis: matching Mario & Luigi: Bowser's Inside Story decompilation

> mlbis reconstructs the Nintendo DS game Mario & Luigi: Bowser's Inside Story as C/C++ source intended to match the retail ROM byte for byte. Its tooling compiles units with CodeWarrior, compares functions and data objects against delinked ROM targets, and relinks modules for byte comparison.

- 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/weaversworkshop/mlbis-decomp>
- Primary source: <https://github.com/weaversworkshop/mlbis-decomp/blob/1509b5f21f0259f627ab052e60badedb1d580388/README.md>
- Catalog page: <https://awesomerea.org/resources/mlbis-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/mlbis-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/mlbis-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Supply your own legally owned game ROM, CodeWarrior mwccarm versions 2.0/sp1p2 and 2.0/sp2p3, its FLEXlm license, and objdiff tools.
- **Prerequisites:** Set up the NitroSDK, NitroSystem, and mw-libraries submodules; Windows is the only tested platform.
- **Limits:** The author reports 1579 of 1869 main_7 functions matched and 134 modules byte-exact.
- **License:** CC0-1.0.

## Primary sources

1. <https://github.com/weaversworkshop/mlbis-decomp/blob/1509b5f21f0259f627ab052e60badedb1d580388/README.md>
2. <https://github.com/weaversworkshop/mlbis-decomp/blob/1509b5f21f0259f627ab052e60badedb1d580388/docs/RUNBOOK.md>

## More in Games

- [Monster Hunter 2 (Dos): matching the PS2 boot executable and overlays](https://awesomerea.org/resources/monster-hunter-2-dos-decomp-case/index.md) · Case study
- [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

## 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.