Metal Gear Solid 2's source code has been leaked on 4chan

Original Article ↗ Hacker News Discussion ↗

Authenticity of the Leak

  • Multiple commenters assert the leak is genuine, citing:
    • Presence of original Japanese comments about cut content and scrapped logic.
    • Code paths for known removed scenes (e.g., tanker escape, post‑9/11 cutscene).
    • Inclusion of raw assets and console-specific headers as strong authenticity signals.
  • A minority speculate it could theoretically be an AI-assisted reconstruction from binaries, but others insist current AI cannot convincingly reproduce a full 90s-era Japanese game codebase with tools, scripts, comments, and removed content.

AI, Decompilation, and Reverse Engineering

  • Some argue modern LLMs plus tools like IDA/Ghidra can decompile almost any game to functional, readable source, even suggesting “there is no longer any such thing as a closed-source binary.”
  • Others counter that:
    • Exact original source is fundamentally unrecoverable; many distinct source snippets can compile to identical binaries.
    • Automatic decompilation existed pre-LLM; LLMs mainly help with readability, naming, and restructuring, not raw correctness.
  • Real-world projects are cited:
    • N64 / GameCube decompilations and a Twilight Princess project rapidly approaching full coverage.
    • A Worms Armageddon reimplementation using LLMs and a large replay-based test harness, still taking months of intensive effort.
  • Debate over whether LLMs meaningfully improve “working compilation” vs. just human productivity and code cleanliness remains unresolved.

Story, Themes, and Cultural Impact of MGS2

  • Several posts discuss the final hours of MGS2’s plot, describing it as convoluted but thematically coherent, with:
    • AI-driven information control, fake digital realities, and predictive commentary on internet-era manipulation.
    • A blend of techno-explanations and outright supernatural elements, consistent with broader series tone.
  • Some find the narrative “incomprehensible” after the fact; others liken it to campy, soap-opera or John Carpenter–style fiction that’s compelling moment to moment but absurd on reflection.

Technical and Historical Value of the Leak

  • Expected benefits:
    • Better understanding of Konami’s proprietary systems: GCX scripting (a TCL-like fork), LA2 lighting format, and SDT audio, previously only partially reverse engineered.
    • Easier ports/mods given that this is the Vita/360 code, which is considered more approachable than original PS2 code.
  • There is interest in whether the leak is fully buildable for consoles and whether it includes or depends on official SDKs (left unclear).

Related Leaks and Comparisons

  • Mention of a recent Minecraft Legacy Console Edition leak on GitHub, noted as under-discussed despite the game’s popularity, with some skepticism about its practical value compared to existing Java decompilations.