Case study

Tag Force 5 Decompilation: matching the PSP game's code

Tag Force 5 Decompilation reconstructs C source for the PSP release ULES-01474 of Yu-Gi-Oh! 5D's Tag Force 5. Its workflow extracts the user's ISO, analyses Allegrex code with Ghidra and splat, and compares Metrowerks-compiled functions against target assembly with relocation-aware diffs. The author reports 15 of 16 text functions matched in rel_movie_viewer.

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: 10
Last commit: 2026-08-16
Language: C

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: A personal copy of the ULES-01474 PSP game is required.
Prerequisites: The workflow uses splat, Ghidra with ghidra-allegrex, wibo, mwccpsp, and MIPS objdump.
Limits: The decompilation is early; the author reports 15 of 16 text functions matched in rel_movie_viewer.
License: MIT license.

Cite

BibTeX

@misc{tag-force-5-decomp-case,
  title = {{Tag Force 5 Decompilation: matching the PSP game's code}},
  howpublished = {\url{https://github.com/angelof-exe/ygo-tf-5-decomp}},
  url = {https://github.com/angelof-exe/ygo-tf-5-decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/tag-force-5-decomp-case/}}
}

Plain text

Tag Force 5 Decompilation: matching the PSP game's code. https://github.com/angelof-exe/ygo-tf-5-decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/tag-force-5-decomp-case/

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Primary sources

README.md GitHub · angelof-exe/ygo-tf-5-decomp · Revision 712c18b
LICENSE GitHub · angelof-exe/ygo-tf-5-decomp · Revision 712c18b