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====== Naomi 2 ======

The Naomi 2 is a arcade developed by Sega. It was released in 2000.

A list of all the games made for it and their provided media format can be found at the [[https://wiki.arcadeotaku.com/w/Sega_NAOMI_2|Arcade Otaku Wiki page]].

This system scrapes metadata for the "naomi2, arcade" group(s) and loads the ''naomi2'' set from the currently selected theme, if available.
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==== Quick reference ====

  * **Accepted ROM formats:** ''.zip'', ''.7z''
  * **Folder:** ''/userdata/roms/naomi2''

^ Emulators ^
| [[#libretro:_flycast|libretro: flycast]] |
| [[#flycast|flycast]] |

===== BIOS =====

Any one of these BIOS files should work.

^ MD5 checksum ^ Share file path ^ Description ^
| ''728bfe038ce280872057e365ebfc0fee'' | ''bios/dc/naomi2.zip'' | |
| ''baf83367044924067e09856ba164aa6f'' | ''bios/dc/naomi2.zip'' | |
| ''6f8ad6e3ab04c8ae1cbcaa652b91cf4e'' | ''bios/dc/naomi2.zip'' | |
| ''f3f39513484df216d9979f6ae7577942'' | ''bios/dc/naomi2.zip'' | |
| ''ab046e62c51d67fb89eade2b8d5f6a8d'' | ''bios/dc/naomi2.zip'' | |
| ''096a5217ff6e6c6cafe65a03336760ab'' | ''bios/dc/naomi2.zip'' | |
| ''659d579ba9aef5b025d87323044e83f4'' | ''bios/dc/naomi2.zip'' | |
| ''cbe0984d03d73869c23da5a3dd2ce207'' | ''bios/dc/naomi2.zip'' | |
| ''b624ec7b3b90fdf3be103cdfb1679d1d'' | ''bios/dc/naomi2.zip'' | |
| ''a9d82db14b823a5a57885bea1a998eb7'' | ''bios/dc/naomi2.zip'' | |
| ''3b1315be24dc8d17f4fa18f3bfc5fe5c'' | ''bios/dc/naomi2.zip'' | |
| ''0143cf852cb2a8a41f217bc688f62105'' | ''bios/dc/naomi2.zip'' | |
| ''8b88c1f5a06e9b560e887c3b9f879237'' | ''bios/dc/naomi2.zip'' | |
| ''b49702e4fadb3b5f9143a3d20afd04b5'' | ''bios/dc/naomi2.zip'' | |
| ''ecadb008179ca1e6f4fe3fa091ab5df2'' | ''bios/dc/naomi2.zip'' | |
| ''edeed38a9795e062a9af28c3eba22040'' | ''bios/dc/naomi2.zip'' | |
| ''14e6bffff0d4dff6a5a547e7c43680ff'' | ''bios/dc/naomi2.zip'' | |
| ''689d2228b00fb59781f82af6e8ecdb78'' | ''bios/dc/naomi2.zip'' | |
| ''8373a11106c1c2fc21ac839f75ea488f'' | ''bios/dc/naomi2.zip'' | |
| ''7eecfb8e8f82b47ffab92a0c5528100e'' | ''bios/dc/naomi2.zip'' | |
| ''960ece0dc22a7c5ff81c812a2993e7cc'' | ''bios/dc/naomi2.zip'' | |

===== ROMs =====

Place your Naomi 2 ROMs in ''/userdata/roms/naomi2''. Flycast uses the [[:arcade#romsets|MAME ROMset]].

===== Emulators =====

==== RetroArch ====

RetroArch has [[emulators:retroarch|its own page]].

=== libretro: Flycast ===

A fork of a fork of a fork... this is an identical version of standalone Flycast but inside of a libretro core. Makes use of RetroArch's features.

== libretro: Flycast configuration ==

Standardized features for this core: ''naomi2.autosave'', ''naomi2.use_guns'', ''naomi2.cheevos''

^ ES setting name ''batocera.conf_key'' ^ Description => ES option ''key_value'' ^
^ Settings that apply to all systems this core supports ||
| **SYNCHRONOUS RENDERING ''global.reicast_synchronous_rendering''** | Can avoid flashing screen issues. Significant performance cost.\\ => Off ''disabled'', On ''enabled''. |
| **RENDERING RESOLUTION ''global.reicast_internal_resolution''** | Enhancement. Increase the rendering resolution. Makes 3D objects clearer.\\ => 640x480 ''640x480'', 800x600 ''800x600'', 960x720 ''960x720'', 1024x768 ''1024x768'', 1280x960 ''1280x960'', 1440x1080 ''1440x1080'', 1600x1200 ''1600x1200'', 1920x1440 ''1920x1440'', 2560x1920 ''2560x1920'', 3200x2400 ''3200x2400'', 3840x2880 ''3840x2880'', 4480x3360 ''4480x3360'', 5120x3840 ''5120x3840'', 5760x4320 ''5760x4320'', 6400x4800 ''6400x4800'', 7040x5280 ''7040x5280'', 7680x5760 ''7680x5760''. |
| **Target color for player 1. ''global.reicast_lightgun1_crosshair''** | \\ => Red ''Red'', Blue ''Blue'', Green ''Green'', White ''White'', Disabled ''disabled''. |
| **Target color for player 2. ''global.reicast_lightgun2_crosshair''** | \\ => Red ''Red'', Blue ''Blue'', Green ''Green'', White ''White'', Disabled ''disabled''. |
| **Target color for player 3. ''global.reicast_lightgun3_crosshair''** | \\ => Red ''Red'', Blue ''Blue'', Green ''Green'', White ''White'', Disabled ''disabled''. |
| **Target color for player 4. ''global.reicast_lightgun4_crosshair''** | \\ => Red ''Red'', Blue ''Blue'', Green ''Green'', White ''White'', Disabled ''disabled''. |
| **TEXTURE MIP-MAPPING (BLUR) ''global.reicast_mipmapping''** | Smooth textures on distant 3D objects based on angle.\\ => Off ''disabled'', On ''enabled''. |
| **ANISOTROPIC FILTERING ''global.reicast_anisotropic_filtering''** | Improves clarity of distant textures when mip-mapping is enabled.\\ => Off ''False'', 2x ''2'', 4x ''4'', 8x ''8'', 16x ''16''. |
| **TEXTURE UPSCALING (XBRZ) ''global.reicast_texupscale''** | Enhancement. Upscales screen textures (2D games only).\\ => Off ''False'', 2x ''2x'', 4x ''4x'', 6x ''6x''. |
| **FRAMESKIP ''global.reicast_frame_skipping''** | Skip frames to improve performance, at the cost of choppy motion.\\ => Off ''disabled'', 1 ''1'', 2 ''2'', 3 ''3'', 4 ''4'', 5 ''5'', 6 ''6''. |
| **FORCE WINDOWS CE MODE ''global.reicast_force_wince''** | Required for some games.\\ => Off ''disabled'', On ''enabled''. |
| **WIDESCREEN CHEAT (PRIORITY) ''global.reicast_widescreen_cheats''** | Enhancement. Only works with a 16/9 ratio and bezels disabled.\\ => Off ''disabled'', On ''enabled''. |
| **WIDESCREEN HACK (GLITCHY) ''global.reicast_widescreen_hack''** | Enhancement. Only works with a 16/9 ratio and bezels disabled.\\ => Off ''disabled'', On ''enabled''. |
| **CONTROLLER 1 TYPE ''global.controller1_dc''** | \\ => Gamepad ''1'', Keyboard ''3'', Mouse ''2'', Light Gun ''4''. |
| **CONTROLLER 2 TYPE ''global.controller2_dc''** | \\ => Gamepad ''1'', Keyboard ''3'', Mouse ''2'', Light Gun ''4''. |
| **CONTROLLER 3 TYPE ''global.controller3_dc''** | \\ => Gamepad ''1'', Keyboard ''3'', Mouse ''2'', Light Gun ''4''. |
| **CONTROLLER 4 TYPE ''global.controller4_dc''** | \\ => Gamepad ''1'', Keyboard ''3'', Mouse ''2'', Light Gun ''4''. |

==== Flycast ====

[[https://github.com/flyinghead/flycast|Flycast]] is a fork of [[https://reicast.com/|Reicast]] (which itself is a fork of nullDC). A highly compatible and accurate standalone emulator.

Flycast can also be used to run [[:systems:dreamcast|Dreamcast home console]] games due to being similar hardware.

=== Flycast configuration ===

Standardized features available to all cores of this emulator: ''naomi2.videomode'', ''naomi2.videomode'', ''naomi2.bezel'', ''naomi2.bezel_stretch'', ''naomi2.hud'', ''naomi2.hud_corner'', ''naomi2.bezel.tattoo'', ''naomi2.bezel.tattoo_corner'', ''naomi2.bezel.tattoo_file'', ''naomi2.bezel.resize_tattoo''

^ ES setting name ''batocera.conf_key'' ^ Description => ES option ''key_value'' ^
^ Settings that apply to all cores of this emulator ||
| **SCREEN RATIO ''naomi2.flycast_ratio''** | Choose which screen ratio you want to use.\\ => Default ''False'', Widescreen ''True''. |
| **RENDER RESOLUTION ''naomi2.flycast_render_resolution''** | Choose which internal rendering resolution you want to use.\\ => 320x240 (Half) ''240'', 640x480 (Native) ''480'', 960x720 (x1.5) ''720'', 1280x960 (x2) ''960'', 1600x1200 (x2.5) ''1200'', 1920x1440 (x3) ''1440'', 2560x1920 (x4) ''1920'', 2880x2160 (x4.5) ''2160''. |
| **GRAPHICS API ''naomi2.flycast_renderer''** | Choose your graphics renderer.\\ => OpenGL (Default) ''0'', Vulkan ''4''. |
| **ROTATE SCREEN 90 DEGREES ''naomi2.flycast_rotate''** | Rotate the screen by 90 degrees.\\ => Normal ''False'', Rotate ''True''. |
| **ANISOTROPIC FILTERING ''naomi2.flycast_anisotropic''** | Higher values make textures viewed at oblique angles look sharper.\\ => Disbaled (Default) ''1'', 2x ''2'', 4x ''4'', 8x ''8'', 16x ''16''. |

===== Controls =====

Here are the default Naomi 2's controls shown on a [[:configure_a_controller|Batocera RetroPad]]:

{{https://raw.githubusercontent.com/batocera-linux/batocera-controller-overlays/master/solid-4k/naomi2.png}}

===== Troubleshooting =====

==== I cannot deactivate "Free Play" in some games ====

Emulationstation as of v41 (and current v42_beta) has no switch to deactivate “Free Play” on the NAOMI and NAOMI 2 systems. You have to use Retroarch core settings according to the Wiki, see https://wiki.batocera.org/advanced_retroarch_settings.

Sadly, when setting “Free Play” to “OFF” in this Retroarch menu, the setting is //ignored// by most of the games.

To get this setting accepted, you have to access the "System Menu" of the NAOMI game in question and set "COIN/CREDIT SETTING" to "# 1":

  - Enter the Retroarch menu (when in game, Hotkey + South).
  - Go to "Core Options" -> "System"
  - Set "Allow Arcade Service Buttons" to "ON" and "Set NAOMI Games to Free Play" to "OFF"
  - Exit the Retroarch menu using "Restart".
  - When in game, press "L3" to enter the System Menu of the game. "R3" is used to navigate this menu, "L3" to select an entry.
   - Navigate this way to "COIN ASSIGNMENTS"
  - Set "COIN/CREDIT SETTING" to "# 1".
  - Exit the System Menu by selecting "EXIT" twice.
  - Optionally you can now set "Allow Arcade Service Buttons" to "OFF" to prevent accidental entering of the game's system menu.


If "COIN/CREDIT SETTING" is set to "# 1", the game in question will respect the Retroarch setting for "Free Play", even if you set "Free Play" to "ON" in Retroarch again.

==== Further troubleshooting ====

For further troubleshooting, refer to the [[:support|generic support pages]].