Editing Sonic the Hedgehog (1991) (section)

==Trivia==
*There are two versions of the game. The revision is common in Japan, but contrary to popular belief it was also released worldwide in smaller quantities. This update makes some very minor changes to the game's programming, as well as adds some visual effects such as scrolling clouds in [[Green Hill Zone (Sonic the Hedgehog)|Green Hill Zone]] or [[water]] ripples in [[Labyrinth Zone]]. It also corrects the [[Zone]] order on the [[Level Select]]. The later version of the game is used for most subsequent re-releases. In addition, the scrolling clouds return in most appearances of Green Hill Zone.[[File:Chaos emeralds.PNG|thumb|111x111px|The six Chaos Emeralds.]]
*The iconic boxart for the US release of the game was created by illustrator [[Greg Wray]], though the work is sometimes misattributed to the late illustrator [[Greg Martin]], who has a similar illustration style to Wray and likewise drew various illustrations for the box artwork of the US Sonic games. The Japanese box artwork was illustrated by Akira Watanabe, who based his rendering off of a sketch by Naoto Oshima.
*Due to the way memory is stored in the ''[[6-Pak]]'' and ''[[Sonic Compilation|Sonic Classics]]'' cartridge rereleases of the game, regular Game Genie codes for ''Sonic the Hedgehog'' will not work with those specific releases. A distinct set of codes is required instead.
*While the majority of the games soundtrack was composed by [[Masato Nakamura]], there are three distinct exceptions: Yukifumi Makino (credited as "Macky"), composed the iconic 1-Up, Drowning and Chaos Emerald jingles.
*''Sonic the Hedgehog'' only featured six Chaos Emeralds, as the seventh emerald (turquoise) was introduced in the [[Sonic the Hedgehog 2|sequel]]. Therefore, [[super transformation]] did not yet officially exist in the original release. However, in [[Sonic the Hedgehog (2013)|Android re-release ports]] of this game, this emerald was added, allowing Sonic to be able to transform into [[Super Sonic]]. This also applies to [[Miles "Tails" Prower|Tails]] and [[Knuckles the Echidna|Knuckles]], as they themselves and their respective Super States are included in the 2013 remaster.
**The Sonic The Hedgehog Promo Comic does allude to the existence of a 7th Emerald, even though the comic was made well before Sonic 2 entered production, and no such Emerald existed in the first game at the time.
*The original cartridge release of ''Sonic The Hedgehog'' does not have an age rating, as it predates the creation of both Sega's short-lived [[Videogame Rating Council]] (VRC) and the ESRB rating system. Rereleases of the game would graft the ESRB's K-A (Kids To Adults) rating and it's successor (E for Everyone) onto it.
**Strangely, the PlayStation Network port of the game was rated E10+ by the ESRB. However, that was changed to an E rating in 2013.
*The original US manual for the game mistakenly implies in its story synopsis that Sonic The Hedgehog's speed comes solely from his "Power Sneakers", even though there is absolutely no evidence in the games, whether in the Western or Japanese branch of the series, or any adaptation thereof, that this was ever the case. Sonic Team have confirmed that Sonic was born with his speed as a natural ability. Note that the Japanese manual for the game makes no mention of this peculiar bit of lore. However, it is likely that the writer of the manual simply made the mistake of assuming that the Speed-Up Shoes Monitor (which does make Sonic go even faster) was the source of Sonic's speed, or simply used poor phrasing that wasn't meant to imply that it was the actual source of his speed.
*A very common misconception is that Sonic's preliminary design sketch was named "Mr. Needlemouse", which became a common running joke among Sonic aficiandos and even Sega themselves. However, Yuji Naka later clarified that the name was an overly literal mistranslation of the Japanese word for "Hedgehog" (ハリネズミ, or Harinezumi) and that the original name was actually "Mr. Hedgehog".
*Rui Sousa holds the world high score record for ''Sonic the Hedgehog'': 1,559,180. He achieved this on 21 March 2015.<ref>{{Cite web|title=Highest Score In "Sonic The Hedgehog" With Five-Life Limit (Sega Genesis)|url=https://recordsetter.com/world-record/highest-score-sonic-tthe-hedgehog-five-life-limit-sega-genesis/40618?autoplay=true|publisher=Record Setter|date=21 March 2015}}</ref>
*Curiously, [[Scrap Brain Zone]] Act 3 and [[Final Zone]] do not reward players with extra [[Point#Sonic the Hedgehog (1991)|Point]]s in the original cartridge release--Scrap Brain Zone Act 3 simply ends with a quick transition to Final Zone, and the game quickly cuts to the ending after Robotnik's defeat. The Time Trial versions of the levels in the ''[[Sonic Origins]]'' remaster rectify this. 
*Despite the games manual enticing players with a massive 50,000 point bonus if they complete a level in under 30 seconds, there are many levels in the game that are impossible to complete in such a short time without--or in some cases even with--exploiting glitches and cheats such as Debug Mode. Final Zone is a notable example, as there is no known way to defeat Robotnik in any time shorter than over a minute. 
*There are 4,093 [[Rings]] total dispersed throughout the games Acts and Special Stages in the original cartridge release. The Sonic Jam port would add a few more Rings to Final Zone if a certain difficulty setting is selected. 
*In the G4 special ''Top 100 Video Games of All Time'', the game was ranked at #50.<ref>{{Cite web|title=#50 Sonic the Hedgehog (Top 100 Video Games of All Time)|work=YouTube|date=21 May 2013|url=https://www.youtube.com/watch?v=Qz7hBxtZU2E}}</ref>
*The game was listed in the book ''1001 Video Games You Must Play Before You Die''. In addition, ''Sonic the Hedgehog 2'' and ''[[Sonic Adventure]]'' were also listed.<ref>{{Cite web|archiveurl=https://web.archive.org/web/20110223164410/http://www.listology.com/adambc13/list/1001-video-games-you-must-play-you-die|archivedate=23 February 2011|date=21 February 2011|author=AdamBC13|title=1001 Video Games You Must Play Before You Die|url=http://www.listology.com/adambc13/list/1001-video-games-you-must-play-you-die}}</ref>
*The release date of this game, 23 June, is also the canonical [[Sonic's birthday|birthday]] of [[Sonic the Hedgehog]] himself.
*The Spanish and Italian translation present in the European manual of ''Sonic The Hedgehog'' erroneously call Sonic a porcupine.
*So far, this is the ''[[Sonic the Hedgehog series|Sonic]]'' game with the most ports and re-releases, with more than a dozen of them.
*Differing from the gameplay, all of [[Doctor Eggman|Dr. Eggman]]'s appearences on the American artworks for the game have him lacking glasses, and instead depicting him with beady black eyes, with an additional lack of gloves. This design would continue on in western artworks for later classic ''Sonic'' games and other western ''Sonic'' media, and specifically using the black eyes in [[Adventures of Sonic the Hedgehog|all]] [[Sonic the Hedgehog (TV series)|three]] [[Sonic Underground|cartoons]].
*Although the European cover of the game depicts Dr. Eggman with his Japanese design, later Sonic artworks in said continent would use the same one as the American.