A notion that's been left behind as video game consoles have increased in power and [[VideoArcade Video Arcades]] themselves have faded into obscurity, this used to be the touchstone of any {{Arcade}} conversion to home computer or console. An ArcadePerfectPort is a port of a video game that is touted to be indistinguishable from its source.

Most 16 bit systems could reasonably claim that they could do arcade-perfect versions of early 8 bit arcade games, and these days most arcade games more than 10 years old can be said to be arcade perfect on modern home computers and consoles thanks to emulation, but the claim was made for many games that couldn't truthfully be said to be arcade perfect.

After the release of the {{PlayStation}}, arcade board makers slowly began using consoles as their arcade platform over more powerful custom made boards ({{Capcom}}'s CP System 3 and {{Sega}}'s Model 3 and Naomi were some of the last pure custom boards to be popular), making arcade perfect ports more common place. Now, all modern arcade boards either use a home console, such as the {{Wii}} for ''VideoGame/TatsunokoVsCapcom'' or PlayStation3 for ''[[{{Tekken}} Tekken 6]]'', or use PC components (boards from {{Sega}} or {{Taito}} today follow this route).

This is NOT for examples where the port simply exceeds the original; that's a PolishedPort. '''For a port to qualify as this trope, it must replicate the arcade version down to the last details of gameplay.''' Additionally, please limit example descriptions to how the port is arcade-perfect; don't list [[AdaptationExpansion extra features not found in the original version]], as they have nothing to do with porting accuracy.
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!! Examples:

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[[folder:Actual]]
* The SharpX68000 computer, released in 1987, was the first home system to offer arcade-perfect ports, largely because it is a home computer designed similarly to an arcade machine. It served as a development machine for Capcom's CPS arcade systems, thus many Capcom games often received arcade-perfect ports for the X68000.
* The FMTowns computer, released in 1989, features perfect ports for a handful of arcade games.
* All the games released for the NeoGeo (released 1990) are arcade-perfect ports, being as the home console has identical hardware to the Neo Geo arcade system. However, this being the 90's, back when console hardware was not on par with then-current arcade hardware, you were lucky to be able to even ''rent'' a Neo Geo console.
* The SegaSaturn and {{PlayStation}} feature equivalent arcade machines, the Sega STV and Namco System 11 (both downgraded from the Sega Model 2 and Namco System 22), respectively. This allowed arcade-perfect ports of games from those arcade systems to their equivalent home consoles.
** Also, the SegaSaturn versions of various 2D arcade games, including ''VideoGame/SpaceHarrier'', ''OutRun'', ''VideoGame/BubbleBobble'', ''VideoGame/RainbowIslands'', and ''VideoGame/TheNewZealandStory''.
* The {{Dreamcast}}, released in 1999, was built on the same hardware as Sega's Naomi arcade system, allowing perfect home ports of 3D arcade games for the first time, with most of the Naomi arcade games receiving arcade-perfect ports for the Dreamcast.
** Also, the Dreamcast versions of Capcom CPS games such as ''[[VideoGame/MarvelVsCapcomClashOfTheSuperheroes Marvel vs. Capcom]]'', which have little to no load times.
** The Dreamcast port of ''MarvelVsCapcom2'' was considered the definitive home port for a long time after (until the PS3 and 360 port), with aftermarket prices for the game climbing into hundreds of dollars. Compare this to the PS2 and Xbox ports, considered [[PortingDisaster Porting Disasters]] due to blurry graphics and muffled audio.
* Both the RType and RType II ports are perfect in the R-Types compilation, aside from some loading screens, a transparent HUD, and a higher frame rate.
* For the SegaGenesis's 32X add-on, {{Sega}} released perfect versions of its arcade games ''VideoGame/AfterBurner II'', ''VideoGame/SpaceHarrier'' and ''StarWarsArcade''.
* Creator/{{Capcom}}'s CPS Changer, like the NeoGeo, was a luxury system designed to run games from actual arcade boards. The only game that had to be downgraded was ''[[VideoGame/StreetFighterAlpha Street Fighter Zero]]'', whose arcade version is run on the somewhat more powerful CPS-2 hardware.
* ''{{Deathsmiles}}'', right down to Windia being an underpowered character. The "Xbox 360" modes fix this, but they are not examples of this trope.
* The versions of ''[[VideoGame/MarvelVsCapcomClashOfTheSuperheroes Marvel vs. Capcom 1]]'' and ''[[VideoGame/MarvelSuperHeroes Marvel Super Heroes]]'' included in ''Marvel vs. Capcom: Origins''. Playing the games, it's pretty obvious that Capcom is running ROM dumps of the original arcade games with a few "cheats" to allow for versus and training modes. Most notable however, is that the games are more arcade perfect emulation since most emulators run the CPS2 at the wrong clockspeed.
* Being arcade perfect is a point of contention for the re-release of ''Vampire Savior'' included in ''VideoGame/{{Darkstalkers}} Resurrection''. Purists are happy that the game is supposed to be an arcade perfect port. However, fans who grew up with the PSX version are disappointed since it lacks the extra characters added to that version.
* ''DaytonaUSA'' is an interesting case, in that the HD remake for arcades was designed to be as similar as possible to the old '90s version, including a severe case of pop-up at distances further than about one second from the front of the car. The modern hardware was more than capable of eliminating this pop-up but it was intentionally left in for the sake of parity.
* ''VideoGame/AfterBurner Climax'' for Xbox 360 and {{PlayStation 3}}. Other than changing the aspect ratio to 16:9, it's just like the arcade version, even leaving in the "slightly de-throttle for a moment to maintain full throttle" glitch.
* The ''Taito Legends 2'' version of ''[[VideoGame/RAYSeries RayStorm]]'' is exactly the same as the arcade version. By "exactly the same", we mean the default life setting is 3 instead of 5, the ship select menu runs at full speed, and no, it does not have the Arrange Mode, the 13-Ship Mode, or the arrange soundtrack from the prior Saturn and [=PS1=] ports.
* A rare thing to happen to the PC in the early [=90s=], the first ''MortalKombat'' game was essentially an arcade perfect port. The only discrepancy was the music didn't sound the same, but this was a problem anyway on [=PCs=] during that time.
* The version of ''VideoGame/{{Splatterhouse}}'' included in [[VideoGameRemake the 2010 remake]] uses the original arcade version from 1986, and plays exactly like it. The game even uses credits as if the player is playing the game on the arcade cabinet.
* The primary goal of {{MAME}} is to emulate arcade games perfectly on PC for historic preservation.
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[[folder:Claimed]]
* MegaDrive ''VideoGame/{{Strider}}, [[VideoGame/GhostsNGoblins Ghouls 'n Ghosts]]''
* While ''VideoGame/FinalFight CD'' for the Mega CD is not as arcade perfect as it is claimed to be (the graphics are less colorful, the music is remixed with no option for the original version and the attack speed of Cody and Guy are slower than in the arcade), but it did have not only all three characters (SNES owners were forced to buy a second version of the game if they wanted Guy), but also the 2-Player co-op mode and the Industrial Area stage.
* Lots of SharpX68000 conversions: ''VideoGame/{{Parodius}}, VideoGame/FinalFight, VideoGame/StreetFighterII, VideoGame/GhostsNGoblins''.
* PCEngine R-Type. Not actually, particularly as they had to split it into two separate games, but it was a showcase for the next generation of consoles.
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