emulator: Model 2 Emulator
type: standalone
source: closed-source
upstream: closed-source
profiled_date: "2026-03-26"
core_version: "1.1a"
display_name: "Model 2 Emulator (Sega Model 2)"
cores:
  - model2
systems:
  - sega-model2
mode: standalone

notes: |
  Closed-source Sega Model 2 arcade emulator by ElSemi, formerly Nebula Model 2.
  Emulates Model 2, 2A, 2B, and 2C hardware. Windows-only, runs via Proton on
  Linux (EmuDeck setup). Last official release 1.1a (2014-01-02).

  Uses MAME-format merged ROM sets. Each game ZIP contains all required ROMs
  (program, geometry, texture, sound, protection chips). No shared parent BIOS
  set exists for Sega Model 2 hardware; each game board has its own ROM chips.

  EmuDeck packages version 1.1c from SeongGino/edc-repo0004. Installs to
  romsPath/model2/ with emulator_multicpu.exe as main binary. Ships with
  Lua scripts for game-specific patches (widescreen, fixes). No checkBIOS
  entry in EmuDeck; EMULATOR.INI references only a roms/ subdirectory.

  Source code never published. Original distribution via nebula.emulatronia.com
  (archived). PhilrocWP/Model2 GitHub repo no longer exists.

files: []

exclusion_note: >
  Uses MAME-format merged ROM sets where all required ROMs are contained within
  each game's ZIP file. No standalone BIOS or firmware files are loaded by the
  emulator. The Sega Model 2 hardware has no shared system BIOS; each game board
  has its own set of program, geometry, texture, and sound ROMs.