Case study

Lego Battles: a hand-decompiled Nintendo DS reconstruction

Lego Battles reconstructs Nintendo DS game source through manual decompilation, chiefly targeting the European version. Its build combines recovered C/C++ code with assets extracted from the user's ROM; an optional ARM7 BIOS enables a matching ROM build.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 10
Last commit: 2025-10-20
Language: C++
License (GitHub): CC0-1.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: An original decrypted Lego Battles ROM is required for asset extraction.
Prerequisites: Python 3.11+, GCC 9+ and Ninja are documented build prerequisites.
Prerequisites: An ARM7 BIOS dump is needed for the optional matching ROM build.
License: CC0 1.0 Universal license.

Cite

BibTeX

@misc{lego-battles-decomp-case,
  title = {{Lego Battles: a hand-decompiled Nintendo DS reconstruction}},
  howpublished = {\url{https://github.com/LiruJ/Lego-Battles-Decomp}},
  url = {https://github.com/LiruJ/Lego-Battles-Decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/lego-battles-decomp-case/}}
}

Plain text

Lego Battles: a hand-decompiled Nintendo DS reconstruction. https://github.com/LiruJ/Lego-Battles-Decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/lego-battles-decomp-case/

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About this entry

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Primary sources

README.md GitHub · LiruJ/Lego-Battles-Decomp · Revision d9f2b80
INSTALL.md GitHub · LiruJ/Lego-Battles-Decomp · Revision d9f2b80