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The '''[https://en.wikipedia.org/wiki/Nintendo_Entertainment_System Nintendo Entertainment System]''' (NES) is an 8-bit, third-generation console released in on July 15, 1983 in Japan, where it was known as the '''Family Computer''' or '''Famicom''', and on October 18, 1985, it released in the US. It retailed for {{Inflation|USD|179.99|1985}}. It had a Ricoh 2A03 CPU at 1.79 MHz with 2KB of RAM.

The earliest games released on the Famicom suffered from significant hardware constraints caused by due to the way the Famicom was designed: limitations for limited memory addressing (which meant games had a low maximal maximum ROM size), how the graphics are loaded onscreen, just the native sound processing is available, no saving... To solve this problem, Nintendo came up with two solutions:

* The '''Family Computer Disk System''' (FDS), a Japan-only add-on which played games from a special Nintendosemi-only magnetic disk custom variant of Mitsumi's Quick Disk format strongly reminiscent of floppy disks of the time. It offered a slightly higher data storage, and slightly enhanced sound processing. It also had a microphone never found anywhere else. There were plans to release it in the US, however since the NES itself had its launch delayed to late 1985, and the mapper solution obsoleted it, the add-on was never exported and some of its exclusives were ported as regular cartridge releases.* '''Memory Management Controllers''' (MMC), also known colloquially as '''mappers'''. They solved every single problem above with bankswitching bank switching for much more data, onboard FM audio chips, and much more. Most games released after 1986 that really pushed the system to its limits used mappers. A similar solution was used for the Game Boy.

Emulation for the NES is robust, with several many high -quality emulators for various systems.

Like for [[Game Boy/Game Boy Color emulators|Game Boy/Color]], tons of NES emulators exist. For a list of open-source projects, see this [https://github.com/search?utf8=%E2%9C%93&q=nes+emulator&type=Repositories GitHub query].

! scope="col"|Operating SystemPlatform(s)

! scope="col"|[[Emulation Accuracy|Accuracy]]

!colspan="8"|PC/ x86

|align=left|{{Icon|Windows, |Linux}}

|align=left|{{Icon|Windows, |Linux|macOS|FreeBSD}}|[http://0ldsk00l.ca/nestopia/ 1.49{{NestopiaVer}}]

|align=left|{{Icon|Windows, |Linux}}|[https://github.com/punesemu/puNES 0.102/releases {{PuNESVer}}]

|align=left|{{Icon|Windows}}|[http://www.qmtpro.com/~nes/nintendulator/#downloads 0.975 985 Beta]

|{{~✗}}

|align=left|{{Icon|Windows, |Linux}}|[https://sourceforge.net/projects/mynes/ 7.47.67537263]

|3DNES[http://www.nesemu2.com/ nesemu2]|Windows, macOS, align=left|{{Icon|Linux}}|[https://geodgithub.itch.iocom/holodnak/3dnes 2.1nesemu2 Git]|{{✗}}|{{✗}}|Cycle

|?-|[[nemulator]]|align=left|{{Icon|Windows}}|[http://nemulator.com/downloads.html 4.2]|{{✗}}|{{✗}}|High

|[[BizHawkRockNES]]|align=left|{{Icon|Windows}}|[http://tasvideosrocknes.orgweb.fc2.com/BizHawk/ReleaseHistory5.html {{BizHawkVer}}54]

|CycleHigh

|align=left|{{Icon|Windows, |Linux}}

|align=left|{{Icon|Windows, |Linux, |macOS, MS-|DOS}}

|Multi-platformalign=left|{{Icon|Windows|Linux|macOS|FreeBSD|Sol}}

|Multi-platformalign=left|{{Icon|Windows|Linux|macOS|FreeBSD}}

|align=left|{{Icon|Windows}}

|align=left|{{Icon|Windows}}

|[[MAMENESticle]]|Multi-platformalign=left|{{Icon|DOS|Windows9x}}|[http://web.archive.org/web/20070227191851/http://www.mamedevzophar.net/NESticle/nestcxxx.zip x.xx] (DOS) <br /> [https://web.archive.org/releaseweb/20070116124329/http://www.zophar.net:80/NESticle/nestc042.html {{MAMEVer}}zip 0.42](Windows 9x)|{{✓✗}}|{{✓✗}}|MidLow|{{✓✗}}

|[[nemulatorQuickNES]]|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}|[httphttps://web.archive.org/web/20180904003223/https://nemulatorkode54.comnet/fb2k/downloadsQuickNES.zip 0.html 47.20b1] (Windows)<br />[https://github.com/libretro/QuickNES_Core Git](libretro)

|Nescala[[VirtuaNES]]|macOS, Linuxalign=left|{{Icon|Windows}}|[httpshttp://githubvirtuanes.s1.xrea.com/hywelandrews/nescala Git0.97]|{{~}}

|[http://wwwfreezesms.nesemu2emuunlim.com/ nesemu2FreezeSMS]|Linuxalign=left|{{Icon|Windows}}|[httpshttp://githubfreezesms.emuunlim.com/holodnak/nesemu2 Gitdownload.html 4.6]

|CycleLow

|[[NESticle]]|Windows, MS-DOS|[httphttps://web.archive.org/web/2007022719185120131022152846/http://www.zophardridus.netcom:80/~nyef/NESticledarcnes/nestcxxx.zip x.xxDarcNES] (DOS) <br /> |align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}|[https://web.archive.org/web/2007011612432920131031224033/http://www.zophardridus.net:80com/~nyef/dn_bin/NESticle9b0401/nestc042.zip 0.429b0313] (Win9x)

|QuickNESNescala|Multi-platformalign=left|{{Icon|Linux|macOS}}|[https://kode54.net/fb2k/QuickNES.zip 0.7.0b1] (Windows)<br />[https://github.com/libretrohywelandrews/QuickNES_Core nescala Git] (libretro)|{{✗}}

|Low{{✗}}|-|[[3dSen|3dSen VR]]|align=left|{{Icon|Windows}}|[http://www.geodstudio.net/ {{3dSenVRVer}}]

!colspan="8"|RockNESMobile / ARM|Windows-|Nestopia<ref group=N name=libretro>Only available as a libretro core (e.g. [[RetroArch]]).</ref>|align=left|{{Icon|Android|iOS}}|1.44|{{✓}}|{{✓}}|High|?|{{✓}}|-|GPFCE|align=left|{{Icon|Linux|Pandora}}|[http://rocknesrepo.openpandora.org/?page=detail&app=package.webgpfce.fc2notaz 0.81.0.r2]|{{✓}}|{{✗}}|High|{{✗}}|{{✓}}|-|Nostalgia.NES|align=left|{{Icon|Android}}|[https://play.google.com/ 5store/apps/details?id=com.nostalgiaemulators.neslite 1.17.542]

|[[VirtuaNESJnes]]|Windowsalign=left|{{Icon|Android}}|[httphttps://virtuanesplay.s1.xreagoogle.com/ 0store/apps/details?id=com.jabosoft.silverarrow 1.1.2.9711]|{{✗✓}}

|{{✗✓}}

|[http://web.archive.org/web/20090227044416/http://imbnes.gamebase.ca imbNES][L-CLASSICS|[[PlayStationSwitch Online]]|[http://web.archive.org/web/20090221132233/http://imbnes.gamebase.ca:80/downloads.html 1.3.2]align=left|{{✗}}Icon|{{✗Switch}}|Unknown2.3.0|{{✗✓}}

|NesterJ*<ref group=N>AoEX is based on NesterJ 1.12 Plus 0.61 RM, so it includes features like rewind, cheat code support, rotated/mirrored screen, sepia palette, support for rare mappers (the pirate bootleg FF7 works on it), etc. Its compatibility is inferior to 1.13 beta 2.</ref>|[[PlayStation Portable]]align=left|{{Icon|PSP}}

|align=left|{{Icon|Wii, |3DS, Wii U|WiiU}}

|MinimalMid|{{✓}}?

|Nestopia**<ref group=N name=libretro/>|align=left|{{Icon|PS3, |360, |Wii}}

|align=left|{{Icon|GCN|Wii, GameCube}}

|Xbox Onealign=left|{{Icon|XB1}}

|align=left|{{Icon|3DS}}

<nowiki>*</nowiki> AoEX is based on NesterJ 1.12 Plus 0.61 RM, so it includes features like rewind, cheat code support, rotated/mirrored screen, sepia palette, support for rare mappers (the pirate bootleg FF7 works on it), etc. Its compatibility is inferior to 1.13 beta 2.<br><nowiki>**</nowiki> Only available on consoles as a libretro core (e.g. [[RetroArch]]).<br><nowiki>***<references group=N /nowiki> Only available on mobile as a libretro core (e.g. [[RetroArch]]).

*[[Mesen]] is the most accurate NES emulator according to currently established NES test ROM suites.<ref name="mesentest">http://www.mesen.ca/TestResults.php</ref> It should be the emulator of choice for those who desire the utmost accuracy. Mesen is also very user-friendly and supports a lot of features that other emulators are missing such as; [[Texture_Packs|HD packs]], [[netplay]], auto-updating, [[Shaders and Filters|good built -in filters]], both .zip and [[GoodTools|goodmerged]] file loading, etc.*[[PuNESpuNES]] is the second most accurate NES /FDS emulator according to a separate test battery run by the TASVideos community.<ref name="nestas">http://tasvideos.org/EmulatorResources/NESAccuracyTests.html</ref> It should be noted that PuNES puNES used to have one mapper that Mesen didn't: 116, which allows games like Kart Fighter and Somari to be supported. This has since been added to Mesen.

*[[Nintendulator]] and MyNes My Nes also have a fairly high ranking in those tests.<ref name="nestas"/>

*For official emulation, use there is Nintendo's own [[Virtual Console]]. It has the backing of many of the developers, including or [[L-CLASSICS|Nintendo, Capcom, Square Enix and NamcoSwitch Online]]. The Wii has a significantly larger library of NES games to choose from than the 3DS or Wii U, especially from third-party publishers.

==Emulation Issuesissues==

* '''Official Mappers''' (UNROM, AOROM, MMC1-6): Most emulators, as well as Nintendo's Virtual Console (but not their GBA emulators) , will cover these.* '''Third Party Mappers:''' Since (Various: e.g. Konami's VRC6/VRC7) While officially licensed by Nintendo, they were not allowed outside Japan. As a result, for their Western releases, many games redid their soundtracks that took advantage of FM their features (advanced ROM mapping, extra sound offered by thesechannels) were reprogrammed significantly and shipped on the official mappers, often with simplified soundtracks. A lot of fan emulators worth their salt will cover these. With those , you cover the entire officially licensed library.

The NES ROM information isn't sufficient to describe the cartridge and emulate it, so emulators have to include the layout and behavior of these mappers in their code, while the ROM header tells the emulator which mapper to choose. So unlike with other consoles, no matter how accurate a given NES emulator is accuratewill get, it will still can't never be able to run newly discovered ROM dumps from cartridges that used an original a so-far unknown mapper. Thus, Unlicensed NES support will be inevitably incomplete and a constant work-in-progress, hence claims some emulators are "inaccurate" because their unlicensed . Related to this issue: This is why most emulators won't run unheadered NES rom ROMs. Newer versions of Nestopia can open those, but they're handled in a slightly different way: the information that would have been included in the iNES header is instead provided in emulator configuration files that get summoned as long as the ROM's hash matches exactly the No-Intro dump of that given game (which is inconvenient for romhacks). ===QD FDS Support===Games dumped off the Famicom Disc System come into two major types: * '''.fds format''': Most common format. Ubiquitous in ROM sets (GoodSets, No-Intro). Omits some checksum data.* '''.qd format''' (stands for QuickDisk): Only ever used in official Nintendo re-releases. Almost identical to fds, but a full dump with checksum data. May omit padding. The checksum data in question would be checked at BIOS startup to verify the integrity of the image and whether it was tampered with, in which case it will throw an anti-piracy error. As of now, no NES emulators support is inevitably the alternate more complete and still dumps, as well as fudging that check's result to always return a negative. To emulate a .qd image, stripping the checksum data with a constant WIPcustom script is needed.

[[File:Retroarch_2013-08-16_06-32-24-62.png|thumb|250px|Example of faulty visuals that are exposed when no overscan is cropped. Note the blank blue area to the left and the green garbage on the right. On NTSC CRT TVs, these areas may or may not be visible]]Several NES games need their overscan to be cropped to look proper. Unfortunately, there is seemingly no standard level of overcropping. Many games appear to require different levels for best results. For example, SMB3 Super Mario Bros. 3 requires quite a lot bit of cropping, however , the same level of cropping will certainly obscure the letters of the status bar in Castlevania games.

Unlike consoles such as the SNES, which natively generate their image in pure RGB, the Famicom normally generates and outputs an encoded NTSC video signal. This must then be decoded by the TV's built-in NTSC decoder, which means the resulting color palette often varies depending on the display's decoder. For this reason , NES games will appear to have different colors on different TV sets. To properly emulate this part of the NES experience, many Famicom emulators have a variety of different palettes to choose from. The 3DS and Wii U versions of [[Virtual Console]] use extremely dark color palettes. This is apparently not an accuracy issue, but rather an anti-epilepsy measure. For the Nintendo Switch Online service, the games were directly edited to remove seizure-inducing patterns, allowing it to use a normal palette.

{| class="wikitable" style="text-align:center;"! scope=Zapper"col" style="width:200px;"|Name(s)! scope="col" style="width:300px;"|DescriptionThis accessory was very common. It'! scope="col" style="width:150px;"|Game(s)! scope="col" style="width:100px;text-align:center"|Support emulator(s a )! scope="col" style="width:300px;"|Note|-!Zapper|An electronic light gun, used for many games such as accessory that allowing players to aim at the display and shoot various objects that appear on the screen.|''[[Wikipedia:Duck Hunt|Duck Hunt]]'', <br/>''[[Wikipedia:Wild Gunman|Wild Gunman]]'', and <br/>''[[Wikipedia:Hogan's Alley (video game)|Hogan's Alley]]'', to name three examples. When |Various|Emulated in the trigger is pulledform of a mouse click (PC), the screen flashes black tap (for mobile), remote ([[Wii emulators|Wii]] ports of NES emulators), or faked pointers using a controller.|-!Arkanoid/Vaus Controller|A specific game controller with one button to "fire" and a period dial to control back and forth movement.|''[[Wikipedia:Arkanoid|Arkanoid]]''<br/>''[[Wikipedia:Arkanoid: Revenge of Doh|Arkanoid: Revenge of 1Doh]]''<br/>''[[Wikipedia:Chase H.Q.|Chase H.Q.]]''|Various|N/A|-2 frames while displaying !Power Pad<br/>Family Trainer<br/>Family Fun Fitness|A game controller that allows players stepping on a white rectangle gray floor mat with 12 pressure-sensors embedded between flexible plastic to control gameplay.|''[[Wikipedia:Stadium Events|Stadium Events]]''<br/>''[[Wikipedia:Dance Aerobics|Dance Aerobics]]''<br/>''Athletic World''|[[FCEUX]]|N/A|-!NES Four Score<br/>NES Satellite<br/>4-Player Adaptor|A multitap accessory that allows players to enable up to 4-player gameplay using infrared wireless communication.|''[[Wikipedia:R.C. Pro-Am II|R.C. Pro-Am II]]''<br/>''[[Wikipedia:Bomberman II|Bomberman II]]''<ref group=N>Up to three players only.</ref><br/>''[[Wikipedia:Gauntlet II|Gauntlet II]]''<br/>''[[Wikipedia:Nintendo World Cup|Nintendo World Cup]]''<br/>''[[Wikipedia:A Nightmare on Elm Street (indicating the target franchise)#Video games|A Nightmare on Elm Street]]''|Various|Emulated by having an option to shoot atswitch between 2-player and 4-player mode or just enabling/disabling Player 3 and Player 4's controller.|-!Family Computer Disk System|''See above''|''[[Wikipedia:The Legend of Zelda (video game)|Legend of Zelda: The Hyrule Fantasy]]''<br/>''[[Wikipedia:Zelda II: The Adventure of Link|Zelda II: The Adventure of Link]]''<br/>''[[Wikipedia:Metroid|Metroid]]''<br/>''[[Wikipedia:Kid Icarus|Light Mythology: Palutena's Mirror]]''<br/>''[[Wikipedia:Castlevania (1986 video game)|Akumajō Dracula]]''<br/>''[[Wikipedia:Ice Hockey (1988 video game)|Ice Hockey]]''|Various|BIOS file (which can be found [[Emulator_Files#NES_.2F_Famicom|here]])is required for FDS emulation. If Note that there's two versions of the gun detects it is pointing at BIOS: the white rectangle, it tells one that comes with FDS and another one that comes with Sharp's [[Wikipedia:Twin Famicom|Twin Famicom]]. They function identically despite showing different intro during first boot.|-!Microphone|A Japan-exclusive built-in feature in the original Player 2 Famicom controller that allows players to use external sound source (e.g. player's voice) as input.|''[[Wikipedia:The Legend of Zelda (video game )|Legend of Zelda: The Hyrule Fantasy]]''<br/>''[[Wikipedia:Kid Icarus|Light Mythology: Palutena's Mirror]]''<br/>''[[Wikipedia:The Legend of Zelda (video game)|Kaiketsu Yanchamaru]]''|[[Mesen]]<ref group=N name=microphone>Cheated by pressing any specific key ("M" by default).</ref><br/>[[VirtuaNES]]<ref group=N name=microphone/><br/>[[Virtual Console]]<ref group=N>Through an actual microphone.</ref>|N/A|-!Family BASIC|A Japan-exclusive peripheral that includes a enchanced dialect of [[Wikipedia:BASIC|BASIC]] programming language that allow users to register create programs in Famicom. It comes with a hitspecial designed cartridge, keyboard, and the Data Recorder. On real hardware this could be quite unreliable unless |''Family BASIC''|[[Mesen]]<br/>[[Nestopia|Nestopia UE]]<br/>[[FCEUX]]<br/>[[VirtuaNES]]|N/A|-!Famicom Data Recorder|A Japan-exclusive compact cassette tape data interface as an addition to the lenses were thoroughly cleanFamily BASIC to save data from BASIC programs created by users. The Zapper plugged into |''Family BASIC''|[[Mesen]]<br/>[[Nestopia|Nestopia UE]]<br/>[[VirtuaNES]]|N/A|-!Famicom 3D System|A Japan-exclusive active shutter glasses headset which allowed compatible games to display a stereoscopic image for 3D experience.|''[[Wikipedia:List of Mario racing games#Famicom Grand Prix II: 3D Hot Rally|Famicom Grand Prix II: 3D Hot Rally]]''<br/>''[[Wikipedia:Rad Racer|Highway Star]]''<br/>''[[Wikipedia:Falsion|Falsion]]''|[[RetroArch]]|[https://github.com/libretro/glsl-shaders/tree/master/stereoscopic-3d GLSL shaders] is needed for RetroArch to simulate the P2 port and mainly worked 3D experience with old CRT TVs; newer LCD TVs will not register [[Virtual Reality|VR]] headset, 3D TV, 3D projector or Android phone with the Zappercardboard. Many emulators support this |-!Miracle Piano Teaching System|An accessory with 100% accurate hit detection in that used an electronic MIDI keyboard as input.|''[[Wikipedia:Miracle Piano Teaching System|Miracle Piano Teaching System]]''|N/A|N/A|-!ASCII TurboFile<br/>ASCII TurboFile II|A Japan-exclusive external storage devices for saving game positions on Famicom.|''[[Wikipedia:Wizardry: Proving Grounds of the Mad Overlord|Wizardry: Proving Grounds of the form Mad Overlord]]''<br/>''[[Wikipedia:Wizardry II: The Knight of Diamonds|Wizardry II: The Knight of Diamonds]]''<br/>''[[Wikipedia:River City Ransom|Downtown Nekketsu Monogatari]]''<br/>''[[Wikipedia:Miracle Warriors: Seal of a mouse click the Dark Lord|Haja no Fūin]]''|[[VirtuaNES]]|N/A|-!Oeka Kids Tablet|A Japan-exclusive drawing tablet for the Famicom ''Oeka Kids'' series.<ref>[https://web.archive.org/web/20160927112920/http://www.ne.jp/asahi/oroti/famicom/ish15.html ファミコンの周辺機器が大集合!　ザ☆周辺機器ズ　15] (PCArchived), tap (for mobile), remote (</ref>|''Oeka Kids: Anpanman no Hiragana Daisuki''<br/>''Oeka Kids: Anpanman to Oekaki Shiyou!!''|[[Mesen]]<br/>[[Nestopia|Nestopia UE]]<br/>[[FCEUX]]<br/>[[puNES]]<br/>[[WiiVirtuaNES]] ports |N/A|-!RacerMate CompuTrainer Pro|A rare series of peripherals for the game ''RacerMate Challenge II''. It comes with a interface box, a bike trainer as well as a handlebar display.<ref>[http://www.nesmuseum.com/racermate.html NES emulators)Museum: RacerMate Challenge II]</ref>|''RacerMate Challenge II''|N/A|N/A|-!Game Genie|A pass-through devices that attached between a cartridge and the console, or faked pointers allowing the player to manipulate various aspects of games and access unused assets and functions by temporarily modify game data.|Various|[[FCEUX]]<ref group=N name=gamegenie>Cheat authentically by using a controllerGame Genie ROM.</ref><br/>[[puNES]]<ref group=N name=gamegenie/>|Most emulators have a GUI to manage cheats and don't rely on real hardware cheating devices.|-!Family Computer Network System<br/>Famicom Modem|A Japan-exclusive network peripheral that allowed users to connect to a Nintendo server which provided extra content such as jokes, news, game tips, weather forecasts, horse betting and downloadable content via dial-up modem.|N/A|N/A|N/A|}<references group=N/>

===Arkanoid/Vaus Controller=Hardware Variants==This controller was released by Taito with one button to "fire" and a dial to control back and forth movement. ''Arkanoid'' and ''Chase H.Q.'' are the only NES games to utilize it, but it is still optional even so. [[Mesen]] and [[puNES]] support this. ===Miracle Piano Teaching VS. System===By An arcade system based on the Software Toolworks, NES released for the ''[[Wikipedia:Miracle Piano Teaching System|Miracle Piano Teaching System]]'' used an electronic piano keyboard as inputUS. It is unknown if any emulator supports this feature. ===Family Trainer/Family Fun Fitness/Power Pad===This was designed to be used with your feet, typically by running released in place on numbered circles to represent the button presses. It plugs into the P2 port and has 12 two different buttons. Notable games such as ''Stadium Events'', ''World Class Track Meet'', and 'cabinet variations: 'Athletic World'', utilize this, and trying to use a standard controller is not an option. Despite being less accurate than puNES or Mesen, [[FCEUX]] actually supports this. ===NES Four Score/NES Satellite/4-Player Adaptor===This turned the standard two controller ports into four by plugging into both P1 and P2Vs. A few games utilized this capability, such as LJN's 'UniSystem'A Nightmare on Elm Street''. Many emulators support this feature by having an option to switch between 2-player and 4-player mode or just enabling/disabling Player 3 and Player 4's controller. ===Microphone===Technically not a peripheral because it was physically part of each Model 1 Famicom, on the second player's controller is a microphone and volume slider instead of having START and SELECT buttons. One noteworthy game that makes use of this is the Japanese ''Legend of Zelda''Vs. Pols Voice, an enemy, is destroyed if the player makes a loud sound into the microphone (the US version changed this to merely firing an arrow to 1-shot them). Another game to make use of the microphone is ''Takeshi no ChōsenjōDualSystem'' (''Takeshi's Challenge''). [[VirtuaNES]] supports this, activated by tapping the 'M' key on default settings. [[Mesen]] also supports this. ====Karaoke Studio====Separate from which the built-in microphone, Bandai made ''[[Wikipedia:Karaoke Studio|Karaoke Studio]]'', which is a special game cartridge that has a microphone attached to it. It is unknown if any emulator supports this. ===Family Computer Disk System===A Japan-only peripheral using a magnetic disk format instead of cartridges, with its own unique game library. Some of these were later ported to the regular NES/Famicom cartridge format with significant downgrades (particularly the loss of enhanced FDS hardware audio). This accessory made it possible to save game data without needing battery-backed ROM, but only for the game contained have double chipsets on each of the disks. You'll need the BIOS file to emulate games made for this add-on. It's interesting to note there are actually two versions of the BIOS; [[Wikipedia:Family Computer Disk System|Nintendo's peripheral]] PCB and [[Wikipedia:Twin Famicom|Sharp's Twin Famicom]]. The only difference is Nintendo's displays ''Nintendo'' while [[Wikipedia:Sharp Corporation|Sharp]]'s displays ''Famicom'' when the hardware is first booted. Other than that, they function identically. ===Famicom Keyboard===Only one game used a keyboard to program in BASIC on the Famicom and that was ''[[Wikipedia:Family BASIC|Family BASIC]]''. VirtuaNES supports it. ====Data Recorder====The [[Wikipedia:Famicom Data Recorder|Data Recorder]] is an accessory related to the Famicom Keyboard. Three games and one accessory supported the Data Recorder: ''Excitebike'', ''Mach Rider'', ''Wrecking Crew'', and ''Family BASIC''. These sent an analog audio stream through the keyboard to a cassette tape deck, but really any device capable of analog audio recording/playback can work with it. The "sounds" are really just 0s and 1s to represent the data the games are trying to write. VirtuaNES supports this accessory, controlled from the "Tape" menu. ===ASCII Turbo File===Different from either battery-backed ROM cartridge handling two different programs or the FDS, ASCII Corporation (based in Japan) created their own method to save game data with the [[Wikipedia:Turbo File (ASCII)|ASCII Turbo File]]. VirtuaNES supports this too. ===Oeka Kids tablet===This accessory was simply two separate copies of a tablet for the Famicom games ''Oeka Kids: Anpanman no Hiragana Daisuki'' and ''Oeka Kids: Anpanman to Oekaki Shiyou!!''.<ref>http://www.ne.jp/asahi/oroti/famicom/ish15.html</ref> [[Mesen]] supports itsingle program simultaneously.

===CompuTrainer Pro===This is very rare and was only used Most emulators support games in the unlicensed game RacerMate Challenge IIVs. No known emulator supports itUniSystem cabinet by setting up different DIP switches. <ref>http://wwwBut for games in Vs.nesmuseum.com/racermateDualSystem cabinet, [[MAME]] is the only choice.html</ref>

===Game Genie===Although Since most emulators in general have a GUI to manage cheats and don't rely on real hardware cheating devices, [[FCEUX]] can cheat authentically using a Game Genie ROMVS. ==Hardware Variants=====VS System===An arcade system based on games have palettes differ from the standard RGB NES released for the US. Most emulators have an option to let you "Insert Coin(s)". ROMs palette, roms made with VS . System in mind which are accidentally played in the emulator's NES mode (or vice-versa) will cause the colors to be totally garbled. This can occur when there is an issue with the emulator's configuration or the ROM's iNES header.

Neither the cartridges nor the BIOS have has been dumped or tested with an emulator, unlike the Super Famicom Box (which has had both its BIOS' and most of its ROMs dumped).

A pirate NES Famicom clone which was sold in Russia and Eastern Europe, with the blueprint later reused for other Famiclones. Here's [http://www.youtube.com/watch?v=kne6AKyYUuM a link] to a CC-subtitled Kinaman video for more details. It's a very quirky NTSC NES optimized for 50Hz, with many other changes from the official PAL NES as well- though through these differences often break the compatibility of Dendy-specific releases on most emulators.

MESS supports this console, and some other emulators (such as Mesen, puNES , and FCEUX) introduced support for it in r3134, along with the already included support for iNES 2.0 ROM headers (including the option to mark a ROM region as PAL Dendy). The cartridges themselves can still be played as long as the emulator supports broken carts.