History Trivia / DoubleDragon

** In the PC Engine version of ''Double Dragon II'', Billy and Jimmy were voiced by RyoHorikawa and NobutoshiCanna, who were also the voice of Kunio and Riki respectively in the PC Engine version of ''[[RiverCityRansom Downtown Nekketsu Monogatari]]''.

* WhatCouldHaveBeen: Wayfoward was considering the {{VideoGame/Battletoads)) and levels based off their series were DLC for the 360 version of ''Neon'', but Microsoft turned down the offer.

** ''Super Double Dragon'' is based on an earlier build of the game compared to its Japanese counterpart (''Return of Double Dragon''). Thus it's missing a few moves (such as the ability to catch your boomerangs during its return or change between moves), the Options menu, a few tunes, and the last two levels of the final stage.

** '''Williams and Roper''', the two Shadow Clan mooks, were named after [[EnterTheDragon Jim Kelly and John Saxon's characters.]]
* PortOverdosed: Exceptionally so. Almost every home computer and console of the 80s got a version and the original game has been remade numerous times, even for [=iOS=].

* NamesTheSame: Jimmy Lee shares his name with a RealLife comic book artist!

* ShoutOut: ''Neon'' include a lot of homages to other games and various other things, including:
** Each type of mixtape you can get includes a short version of the song in question, most of which have fitting music genres.
** When buying things from the shopkeeper, he may respond with [[CastlevaniaSymphonyOfTheNight "Heh heh...thank you"]]
*** The final area just before the final fight with Skullmageddon also has an invisible ladder that leads to an area with 3 treasure chests and extra lives, much like the invisible platform that rains down powerups right before Dracula in SuperCastlevaniaIV.
** The 4th level boss, Mecha Biker, is basically MegaMan in every sense of the way: he's referred to as a "Super Combat Bot" (referencing the [[WesternAnimation/MegaMan animated series']] theme song), rides around on a red jetbike much like Rush, shoots 3-shot bursts and charge shots, slides around and even explodes like Mega Man when defeated. His boss arena also has a pair of rising gates leading up to it with a short corridor in between them, and yes, you can jump through the gates and have Billy freeze in midair during screen transition. Finally, the platform the battle takes place on resembles the Mega Man boss introduction screens in both overall color and the borders on top and bottom of it.
** Billy and Jimmy need to [[spoiler: convert themselves into robots since their human bodies can't make it through the portal that leads to the BadFuture Skullmageddon escaped to]], which is pretty similar to what happened at the end of EarthBound.
** The boss Skullmageddon appears to be a homage to Super Shredder, the final boss of ''TeenageMutantNinjaTurtles Turles In Time.'' This is up to and including his boss theme having a lot of snare drums and slap bass in it similar to the sound Roland synthesizers produced when used in Konami's soundtracks, teleporting when approached, and flashing colors when near death.
*** He also sounds like a dorkier [[HeMan Skeletor]].
** The "go" indicator arrow familiar from other beat'em-ups is basically a modified [[{{Nintendo}} Power Glove.]]
** When you hit an enemy with a baseball bat, the Lees may yell "[[VideoGame/TeamFortress2 Boink!!]]"
** The [[spoiler: mutated Billy and Jimmy clones you fight in the laboratory levels]] are a shout-out to the WebVideo/AngryVideoGameNerd.
*** Well, specifically, they're a shout out to the infamous misspelling of Billy's name in the third NES game, mentioned above. The Nerd just [[BerserkButton called attention to it when he reviewed it]].

** The 3rd level boss Mandroid is basically Megaman in every sense of the way: he rides around on a red jetbike much like Rush, shoots 3-shot bursts and charge shots, slides around and even explodes like Megaman when defeated. His boss arena also has a pair of rising gates leading up to it with a short corridor in between them, and yes, you can jump through the gates and have Billy freeze in midair during screen transition. Finally, the platform the battle takes place on resembles the Megaman boss introduction screens in both overall color and the borders on top and bottom of it.

** The "go" indicator arrow familiar from other beat'em-ups is basically a modified [[{{Nintendo}} Power Glove. ]]

** Skullmageddon sounds like a dorkier He-Man Skeletor.

** The [[spoiler: mutated Billy and Jimmy clones you fight in the laboratory levels]] are a shout-out to the WebVideo/AngryVideoGameNerd.

** When you hit an enemy with a baseball bat, the Lees may yell "[[TeamFortress2 Boink!!]]"
** The [[spoiler: mutated Billy and Jimmy clones you fight in the laboratory levels]] are a shout-out to the AngryVideoGameNerd.

** Skullmageddon sounds like a dorkier He-Man Skeletor.

** Skullmageddon sounds like a dorkier [[He-Man Skeletor]].

** The "go" indicator arrow familiar from other beat'em-ups is basically a modified [[{{Nintendo}} Power Glove. ]]

** The boss Skullmageddon appears to be a homage to Super Shredder, the final boss of ''TeenageMutantNinjaTurtles Turles In Time.'' This is up to and including his boss theme having a lot of snare drums and slap bass in it similar to the sound Roland synthesizers produced when used in Konami's soundtracks, teleporting when approached, and flashing colors when near death.

* AscendedMeme: "Bimmy", a misspelling of Billy's name in the 2-player intro to ''Double Dragon III'' (NES), is reused in ''DD Neon'' as a pair of Abobo-sized mutant clones of the Lee Bros. named "Bimmy and Jammy".

** The 6th level has a pair of giant Billy and Jimmy clones called Bimmy and Jammy and their [[BossSubtitles Boss Subtitle]] is "Mistranslated Mutants", referring to the infamous typo in the third game.

* ShoutOut: ''Neon'' seems to include a few homages to other games from different companies, including:

* PortOverdosed: Exceptionally so. Almost every home computer and console of the 80s got a version and the original game has been remade numerous times, even for [=iOS=].

* NamesTheSame: Jimmy Lee shares his name with [[JimmyLee a comic book artist]]!

* PortOverdosed: Exceptionally so. Almost every home computer of the 80s got a version and the arcade version has been re-released numerous times, even for cell phones.

* BadExportForYou - The American version of the third arcade game added item shops where the player could purchase new characters, weapons, and new moves by inserting more tokens into the cabinet. In the Japanese version, the non-Lee characters are selectable from the start, weapons are simply found on the ground, and the special moves are available from the get-go. The only trade-offs are the fact that the Hurricane Kick is harder to pull, and there's no way to increase one's max health and attack speed like in the American version.

* HeyItsThatVoice - In the PC Engine version of ''II'', Billy and Jimmy were voiced by RyoHorikawa and NobutoshiCanna, who also the voiced Kunio and Riki respectively in the PC Engine versions of the ''[[RiverCityRansom Downtown Nekketsu]]'' games. In the Neo-Geo game, Billy and Jimmy were voiced by HikaruMidorikawa and KanetoShiozawa. Also, Marian in the Neo-Geo version is voiced by Yuko Koyama, who is the voice of [[DeadOrAlive Helena Douglas]]. Likewise, both Abobo and Burnov are voiced by the late DaisukeGouri.

* HeyItsThatVoice - In the PC Engine version of ''II'', Billy and Jimmy were voiced by RyoHorikawa and NobutoshiCanna, who also the voiced Kunio and Riki respectively in the PC Engine versions of the ''[[RiverCityRansom Downtown Nekketsu]]'' games. In the Neo-Geo game, Billy and Jimmy were voiced by HikaruMidorikawa and KanetoShiozawa. Also, Marian in the Neo-Geo version is voiced by Yuko Koyama, who is the voice of [[DeadOrAlive Helena Douglas]]. Likewise, both Abobo and Burnov are voiced by the late DaisukeGouri.

* HeyItsThatVoice - In the PC Engine version of ''II'', Billy and Jimmy were voiced by RyoHorikawa and NobutoshiCanna, who also the voiced Kunio and Riki respectively in the PC Engine versions of the ''[[RiverCityRansom Kunio-kun]]'' games. In the Neo-Geo game, Billy and Jimmy were voiced by HikaruMidorikawa and KanetoShiozawa. Also, Marian in the Neo-Geo version is voiced by Yuko Koyama, who is the voice of [[DeadOrAlive Helena Douglas]]. Likewise, both Abobo and Burnov are voiced by the late DaisukeGouri.

* HeyItsThatVoice - In the PC Engine version of ''II'', Billy and Jimmy were voiced by RyoHorikawa and NobutoshiCanna, who also the voiced Kunio and Riki respectively in the PC Engine versions of the ''[[RiverCityRansom Kunio-kun]]'' games. In the Neo-Geo game, Billy and Jimmy were voiced by HikaruMidorikawa and KanetoShiozawa. Also, Marian in the Neo-Geo version is voiced by Yuko Koyama, who is the voice of [[DeadOrAlive Helena Douglas]] and the dub voice of [[MightyMorphinPowerRangers Kimberly/Pink Ranger]]. Likewise, both Abobo and Burnov are voiced by the late DaisukeGouri.

* HeyItsThatVoice - In the PC Engine version of ''II'', Billy and Jimmy were voiced by RyoHorikawa and NobutoshiCanna, who also the voiced Kunio and Riki respectively in the PC Engine versions of the ''[[RiverCityRansom Kunio-kun]]'' games. In the Neo-Geo game, Billy and Jimmy were voiced by HikaruMidorikawa and KanetoShiozawa.