emulator: 2 Ship 2 Harkinian
type: standalone
core_classification: game_engine
source: "https://github.com/HarbourMasters/2ship2harkinian"
upstream: "https://github.com/HarbourMasters/2ship2harkinian"
source_commit: "8a24047fbce8915993804e7819f4df4fa591551f"
profiled_date: "2026-10-20"
core_version: "5.0.1"
display_name: "The Legend of Zelda: Majora's Mask (2 Ship 2 Harkinian)"
cores: [2ship]
systems: [2ship]

notes: |
  PC port of The Legend of Zelda: Majora's Mask built on the decompilation,
  by HarbourMasters. The game runs from assets extracted out of the user's
  N64 or GameCube Collector's Edition ROM into mm.o2r, plus the port's own
  archive 2ship.o2r, on the libultraship runtime. ZAPDTR and OTRExporter
  perform the extraction inside the executable.

  RetroBat installs the 5.0.1 release ("Battler Bravo"): its 2ship.7z carries
  the 2ship.exe, 2ship.o2r, gamecontrollerdb.txt and assets tree of
  2Ship-Battler-Bravo-Win64.zip byte for byte, so the profile is pinned to the
  5.0.1 tag. Its launcher passes the ROM on the command line when mm.o2r is
  absent (only a .z64, .n64 or .v64 file, else it copies the ROM beside the
  executable), and deletes mm.o2r first when the major version stored in it
  differs from the one in 2ship.o2r, so the archive is regenerated.
  ref: emulatorLauncher Generators/PortsLauncher.Configuration.cs:1528-1564

  Startup:
    1. 2ship.o2r is located in the application directories and its stored
       port version must equal the build in major, minor and patch. A
       missing or outdated 2ship.o2r shows an error and exits
       (mm/2s2h/BenPort.cpp:149-153, 345-370).
    2. mm.o2r is regenerated when its stored major version differs from the
       build (mm/2s2h/BenPort.cpp:282, 958-960).
    3. Without mm.o2r a ROM given on the command line is extracted.
       Otherwise .z64, .n64 and .v64 files in the install and data folders
       are offered, then a file dialog. With no mm.o2r at the end the port
       shows an error and exits (mm/2s2h/BenPort.cpp:447-540).
    4. mm.o2r is added to the archive manager (mm/2s2h/BenPort.cpp:612-616).
       A mods folder is created beside it when absent
       (mm/2s2h/BenPort.cpp:256-262).

  ROM check: the size must be 32, 54 or 64 MiB, the data is converted to
  big-endian order whatever the dump format, the word at 0x10 picks the
  version (0x5354631C US 1.0, 0xB443EB08 US GC), and a CRC-32C of the whole
  converted image must be 0x96F49400 or 0xBB434787. Compressed files are
  refused. The extraction reads assets/xml/<version>, assets/filelists and
  assets/Config_<version>.xml from the install folder, which ship with the
  release (1329 files).
  ref: mm/2s2h/Extractor/Extract.cpp:54-66, 298-299, 307-357, 580-616,
       mm/2s2h/Extractor/Extract.h:19-21

  The two SHA-1 values below are those the repository publishes for the
  .z64 forms of the two accepted ROMs (docs/supportedHashes.json). The code
  itself only checks the CRC-32C, so .n64 and .v64 dumps of the same ROMs
  are accepted too.

  libultraship is a submodule pinned at 5.0.1 to
  7cb10226e7875ec48ceec2f841d00afd84eef964. Its citations are at that
  revision.

files:
  - name: "mm.us.rev1.rom.z64"
    category: game_data
    system: 2ship
    required: true
    size: 33554432
    sha1: "d6133ace5afaa0882cf214cf88daba39e266c078"
    description: "The Legend of Zelda: Majora's Mask (USA) N64 ROM"
    source_ref: "mm/2s2h/Extractor/Extract.cpp:54, 63-66, 307-317, docs/supportedHashes.json:2-5"
    note: "No file name is fixed. Picked from the install folder, a file dialog or the command line. Read only to build mm.o2r, which is used from then on."
    unsourceable: "retail ROM the collection does not hold, and a same-named dump of another game must not stand in"

  - name: "mm.us.gc.rom.z64"
    category: game_data
    system: 2ship
    required: false
    sha1: "9743aa026e9269b339eb0e3044cd5830a440c1fd"
    description: "The Legend of Zelda: Majora's Mask (USA) ROM from the GameCube Collector's Edition"
    source_ref: "mm/2s2h/Extractor/Extract.cpp:55, 63-66, 307-317, docs/supportedHashes.json:6-9"
    note: "Accepted in place of the N64 ROM and extracted to the same mm.o2r with the GC_US asset tables."
    unsourceable: "retail ROM the collection does not hold, and a same-named dump of another game must not stand in"

  - name: "2ship.o2r"
    path: "2ship/2ship.o2r"
    category: game_data
    system: 2ship
    required: true
    bundled: true
    size: 1139531
    sha1: "f9baf625f5fbedf98470a0acee4958ceb0d55f41"
    md5: "1e05eb39b5d76e1b5476ab7c2456f979"
    description: "Port archive: shaders, textures and data added by the port"
    source_ref: "mm/2s2h/BenPort.cpp:149-153, 345-370"
    note: "Its stored version must equal the executable's, so only the copy from the same release works. Hash of the copy in 2Ship-Battler-Bravo-Win64.zip."
    unsourceable: "ships inside the 2 Ship 2 Harkinian release, and the collection does not hold it"

  - name: "gamecontrollerdb.txt"
    path: "2ship/gamecontrollerdb.txt"
    category: game_data
    system: 2ship
    required: false
    bundled: true
    size: 603494
    sha1: "cb03bd16cd6cf008478681e5c9fc5a2689b1e5e4"
    md5: "3155b5fd0be37137f422c3c0f032c13f"
    description: "SDL game controller mapping database"
    source_ref: "libultraship src/ship/Context.cpp:277-283"
    note: "A load failure is logged and SDL keeps its built-in mappings. Hash of the copy in 2Ship-Battler-Bravo-Win64.zip."
    unsourceable: "ships inside the 2 Ship 2 Harkinian release, and other revisions under the same name must not stand in"