Case study

Sonic the Hedgehog 2: byte-identical REV00 and REV01 source reconstruction

The Sonic the Hedgehog 2 Source Reconstruction extends Sonic Retro's disassembly into shared 68000 and Z80 source for retail REV00 and REV01. It organizes modules by subsystem, models selected game data formats, and checks rebuilt ROMs byte for byte against the user's own images; the author also reports MAME runtime comparisons.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-11-05
Language: Assembly

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Windows x64 with Python 3.10 or later, Git, GNU Make, and the pinned Retrolarium Kit and Core dependencies.
Prerequisites: Legally obtained REV00 and REV01 reference ROM images are required for extraction and full verification.
Limits: REV02, prototypes, modifications, compilations and lock-on builds are excluded; the full Linux gate has not been validated.
License: No licence file in the repository.

Cite

BibTeX

@misc{sonic-the-hedgehog-2-source-reconstruction-case,
  title = {{Sonic the Hedgehog 2: byte-identical REV00 and REV01 source reconstruction}},
  howpublished = {\url{https://github.com/RetrolariumLab/sonic2_src}},
  url = {https://github.com/RetrolariumLab/sonic2_src},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/sonic-the-hedgehog-2-source-reconstruction-case/}}
}

Plain text

Sonic the Hedgehog 2: byte-identical REV00 and REV01 source reconstruction. https://github.com/RetrolariumLab/sonic2_src (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/sonic-the-hedgehog-2-source-reconstruction-case/

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Primary sources

README.md GitHub · RetrolariumLab/sonic2_src · Revision 83ade88
docs/architecture_decisions.md GitHub · RetrolariumLab/sonic2_src · Revision 83ade88