|Sonic the Hedgehog|
|Series||Sonic the Hedgehog|
Sonic the Hedgehog[a][b] (commonly referred to as Sonic ’06) is a 2006 platform game developed by Sonic Team and published by Sega. It was produced in commemoration of the Sonic series' 15th anniversary, and intended as a reboot for the seventh generation video game consoles. Players control Sonic, Shadow, and new character Silver, who battle Solaris, an ancient evil pursued by Doctor Eggman. Each playable character has his own campaign and abilities, and must complete levels, explore hub worlds and fight bosses to advance the story. In multiplayer modes, players can work cooperatively to collect Chaos Emeralds or race to the end of a level.
Development began in 2004, led by Sonic co-creator Yuji Naka. Sonic Team sought to create an appealing game in the vein of superhero films like Batman Begins, hoping it would advance the series with a realistic tone and multiple gameplay styles. Problems developed after Naka resigned to form his own company, Prope. The team split to work on the Wii game Sonic and the Secret Rings (2007), resulting in Sonic the Hedgehog being rushed for the holiday season. It was released for Xbox 360 in November 2006 and for PlayStation 3 the following month. Versions for Wii and Windows were canceled. Downloadable content featuring new single-player modes was released in 2007.
Sonic the Hedgehog received praise in prerelease showings, as journalists believed it could return to the series' roots after years of mixed reviews. However, it was a critical failure. Reviewers criticized its loading times, camera system, story, stability, and controls. It has been frequently described as one of the worst games in the series. In 2010, Sega delisted Sonic the Hedgehog from retailers, following its decision to remove all Sonic games with below-average Metacritic scores to increase the value of the brand. Its failure led to a rethinking of the series' direction; future games ignored its tone and most characters.
Sonic the Hedgehog is a 3D platformer with action-adventure and role-playing elements. Like Sonic Adventure, the single-player navigates through open-ended hub worlds where they can converse with townspeople and perform missions to advance the story. The main gameplay takes place in linear levels that become accessible as the game progresses. The main playable characters are three hedgehogs: Sonic, Shadow, and Silver, who feature in separate campaigns titled "episodes". A bonus "Last Episode", which involves all three hedgehogs and concludes the storyline, is unlocked upon completing the first three.
Sonic's story focuses on the speed-based platforming seen in previous Sonic games, with some sections having him run at full speed while dodging obstacles or riding a snowboard. Another character, Princess Elise, must be escorted in some stages, and she can use a special barrier to guard Sonic.:13 Shadow's sections are similarly speedy, albeit more combat-oriented, with some segments having him ride vehicles. In contrast, Silver's levels are slower and revolve around his use of telekinesis to defeat enemies and solve puzzles. In certain areas, control is switched to one of several friend characters,[c] with their own abilities.
Although each character traverses the same levels, their unique abilities allow the player to access different areas of each stage and prevent them from accessing certain items. Scattered through each level are golden rings, which serve as a form of health. The rings can protect a character from a single hit by an enemy or obstacle, at which point they will be scattered and blink before disappearing. The game begins with Sonic, Shadow, and Silver each assigned a limited number of lives. These lives are successively lost whenever, with no rings in their possession, the characters are hit by an enemy or obstacle or encounter other fatal hazard. The game ends when the player exhausts the characters' lives. Every few levels, players will encounter a boss stage; to proceed, they must defeat the boss by depleting its health meter.
Upon completion of a level or mission, players are given a grade depending on their performance, with an "S" rank being the best and a "D" rank being the worst. Players are given money for completing missions; more money is given to higher ranks. This money can be used to buy upgrades for the player character. Certain upgrades are required to complete the game.:8–11 The game also features two multiplayer modes: "Tag", a cooperative mode where two players must work together to clear levels and collect Chaos Emeralds, and "Battle", a player versus player mode where two players race against each other.
Doctor Eggman kidnaps Princess Elise of Soleanna in the hopes of harnessing the Flames of Disaster, a destructive power sealed within her. Aided by his friends Tails and Knuckles, Sonic works to protect Elise from Eggman. Meanwhile, Shadow and his fellow agent Rouge accidentally release an evil spirit, Mephiles. The spirit transports them to a post-apocalyptic future ravaged by a demonic monster, Iblis. When Mephiles meets survivors Silver and Blaze, he fools them into thinking Sonic is the cause of this destruction and sends them to the present to kill him.
Throughout the story, Sonic and friends travel between the past, present, and future in their efforts to stop Mephiles and Iblis and protect Elise from Doctor Eggman. Though at first Silver stalks Sonic and impedes his attempts to save Elise, Shadow reveals to him that Sonic is not the cause of his world's suffering but rather Mephiles, who is trying to change the past for his own evil purposes. They learn that Mephiles seeks to bond with Iblis, who was sealed within Elise as a child, as they are the two halves of Soleanna's omnipotent god, Solaris. Mephiles eventually succeeds after killing Sonic to make Elise cry over his death, releasing her seal on Iblis and merging with him to become Solaris, who then attempts to consume time itself. The heroes use the power of the Chaos Emeralds to revive Sonic, and he, Shadow, and Silver transform into their super forms to defeat Solaris. Sonic and Elise are brought to the past and extinguish Solaris's flame, removing the god from existence and preventing the previous events from ever occurring.
After finishing Billy Hatcher and the Giant Egg (2003), Sonic Team began to plan its next project. Among the ideas the team was considering was a game with a realistic tone and an advanced physics engine. When Sega reassigned the team to start working on a new game in the bestselling Sonic series, they decided to retain the realistic approach. Sonic the Hedgehog was conceived for sixth generation consoles, but Sonic Team realized its release would coincide with the series' 15th anniversary and decided to develop it for seventh generation consoles such as the PlayStation 3 and Xbox 360. Series co-creator and team lead Yuji Naka wanted the first Sonic game for seventh generation systems to be a reboot of the franchise. Naka noted the success of superhero films such as Spider-Man 2 (2004) and Batman Begins (2005)—which reached an audience far beyond fans of the comics those films were based on—and wanted to mimic this success. Thus, development of Sonic the Hedgehog began in late 2004. Sonic Team decided to use the same title as the original 1991 game that had launched the franchise to indicate that it would be a major advance from the previous games.
The Havok physics engine, previously used in their PlayStation 2 game Astro Boy (2004), allowed Sonic Team to create expansive levels previously impossible on earlier sixth generation consoles and experiment with multiple play-styles. In addition, the engine also enabled Sonic Team to experiment with aspects such as global illumination, a night-and day system, and giving Sonic new abilities like using ropes to leap into the air. Director Shun Nakamura demonstrated the engine during their stage shows at the Tokyo Game Show (TGS) in 2005. As the hardware of the Xbox 360 and PlayStation 3 was more powerful compared to the prior generation's consoles, the design team was able to create a more realistic setting than those of previous Sonic games. Sonic and Doctor Eggman were redesigned to better suit this updated environment: Sonic was made taller, with longer quills, and Eggman was made slimmer and given a more realistic appearance. Nakamura and producer Masahiro Kumono reasoned this was because the characters would be interacting with more humans, and felt it would make the game more appealing to older players. At one point, Sonic Team considered giving Sonic realistic fur and rubber textures.
While Sonic Team had a major focus on the visuals, they considered their primary challenge creating a game that was as appealing as the original Sega Genesis Sonic games. They felt the preceding titles Sonic Heroes (2003) and Shadow the Hedgehog (2005) had veered into different directions and wanted to return the series to its speed-based roots in new ways. For example, they wanted to include multiple paths in levels, like the Genesis games had, a goal the realistic environments helped achieve. Sonic Team sought to "aggressively" address problems with the virtual camera system from earlier Sonic games, something they had received many complaints about.
Silver the Hedgehog's gameplay style was born out of Sonic Team's desire to take advantage of Havok's realistic physics capabilities. The first design concept for Silver's character was an orange mink; he attained his final hedgehog look after over 50 design iterations. In designing Shadow's gameplay, the developers abandoned the concept of firearms previously used in Shadow the Hedgehog (2005) in favor of combat elements to differentiate him from the other characters. Shadow's gameplay was further fleshed out with the addition of vehicles; each vehicle uses its own physical engine. The game also features several CGI cutscenes produced by Blur Studio. Animation supervisor Leo Santos said Blur faced challenges animating the opening scene due to the placement of Sonic's mouth.
As development progressed, Sonic Team faced serious problems, starting with Naka's resignation as head of Sonic Team to form his own company, Prope. Naka has said he resigned because he did not want to continue making Sonic games and instead wished to focus on original properties. With his departure, "the heart and soul of Sonic" was gone, according to former Sega of America CEO Tom Kalinske. Sonic the Hedgehog was originally intended for release on all major seventh generation consoles as well as Windows, but Sega was presented with development kits for Nintendo's less powerful Wii console. Sega believed porting the game to Wii would take too long, and so conceived a Sonic game that would use the motion detection function of its controller.
Therefore, the team was split in two: Nakamura led one team to finish Sonic the Hedgehog for Xbox 360 and PlayStation 3 while producer Yojiro Ogawa led the other to begin work on Sonic and the Secret Rings for the Wii. The split left an unusually small team to work on Sonic the Hedgehog. Sega pressured the team to finish the game in time for the 2006 holiday shopping season, so with the deadline quickly approaching, Sonic Team rushed the final stages of development, ignoring bug reports from Sega's quality assurance department and control problems. In retrospect, Ogawa noted that the final period proved to be a large challenge for the team. Not only was the Xbox 360 release imminent, but the PlayStation 3 launch was scheduled not long afterwards. This put tremendous pressure on the team to develop for both systems. Producer Takashi Iizuka similarly recalled, "we didn't have any time to polish and we were just churning out content as quick as we could."
The cast of the Sonic X anime series reprised their voice roles for Sonic the Hedgehog, and actress Lacey Chabert supplied the voice of series newcomer and damsel in distress, Princess Elise. The score for the game was primarily composed by Tomoya Ohtani along with Hideaki Kobayashi, Mariko Nanba, Taihei Sato, and Takahito Eguchi. It was the first Sonic game that Ohtani, who had previously contributed to Sonic Heroes (2003) and Shadow the Hedgehog, worked on as sound director. The main theme for the game, the fantasy-rap song "His World", was performed by Ali Tabatabaee and Matty Lewis of the band Zebrahead. Crush 40 performed Shadow's theme, "All Hail Shadow", while vocalist Lee Brotherton sang Silver's theme, "Dreams of an Absolution". R&B artist Akon performed a remix of the Dreams Come True song "Sweet Sweet Sweet", a song previously used as the ending theme to Sonic the Hedgehog 2 (1992).
Because it was the first Sonic game for seventh generation consoles, Ohtani "aimed to emphasise that it was a epic next-generation title." Two soundtrack albums were released on January 10, 2007, under Sega's Wave Master label: Sonic the Hedgehog Vocal Traxx: Several Wills and Sonic the Hedgehog Original Soundtrack. Vocal Traxx: Several Wills contains seven songs; four are from the game, while the remaining three are remixes, including a version of "His World" performed by Crush 40. Original Soundtrack includes all 93 tracks featured in Sonic the Hedgehog, spanning three discs.
Sonic the Hedgehog was announced in a closed-doors presentation at the Electronic Entertainment Expo (E3) in May 2005. Later that year, at TGS in September, Naka revealed the game's title and said its release would correspond with the series' 15th anniversary. A demo version of the game was playable at E3 2006. A second demo, featuring a short section of Sonic's gameplay, was released via Xbox Live in September 2006. Sega released several packages of desktop wallpaper featuring characters from the game, and American publisher Prima Games published an official strategy guide, written by Fletcher Black. Sega also made a deal with Microsoft to run advertisements for the game in Windows Live Messenger.
The Xbox 360 version of Sonic the Hedgehog was released in North America on November 14, 2006, followed by a European release on November 24, 2006. Both versions were released in Japan on December 21, 2006. The PlayStation 3 version was released in North America on January 30, 2007, and in Europe on March 23, 2007. The game is often referred to by critics and fans with colloquial terms that reference its year of release, such as Sonic 2006 or Sonic '06.
In 2007, Sega released several packages of downloadable content that added features to single-player gameplay. These include a more difficult single-player mode and a continuous battle mode with all of the game's bosses back-to-back. One downloadable addition, "Team Attack Amigo" mode, sends players through a multitude of levels, changing to a different character every two or three levels and culminating in a boss fight. The PlayStation 3 version was delayed to allow more time to incorporate the downloadable content, and thus launched alongside it.
The game was digitally rereleased via the Xbox Live Marketplace on April 15, 2010. The following October, various Sonic games with average or below average scores on the review aggregator website Metacritic, including Sonic the Hedgehog, were delisted from retailers. Sega reasoned this was to avoid confusing customers and increase the value of the brand, following positive prerelease responses to Sonic the Hedgehog 4: Episode I and Sonic Colors (both 2010).
Sonic the Hedgehog was well-received during prerelease showings. Reception to prior games Sonic Heroes and Shadow the Hedgehog had been mixed; after a number of well-received showings and demos, some felt Sonic the Hedgehog could be a return to the series' roots. GameSpot said the game "showed a considerable amount of promise" after playing a demo at E3 2006, and GameSpy praised its graphics and environments. In 2008 GamesRadar said that it had looked "amazing" before its release.
At the time of release, the game received widespread negative reviews. Metacritic classified both versions' reception as "generally unfavorable". Sega reported that the game sold strongly, with 870,000 units sold in the United States within six months. The Xbox 360 version was branded under the Platinum Hits budget line.
Critics were divided on the game's presentation. IGN called its graphics and audio "decent" and felt its interface and menu system worked well but lacked polish, but GameSpot said the graphics, while colorful, were bland and only a small improvement over sixth-generation games, a sentiment echoed by 1UP.com. Game Informer and Eurogamer noted several graphical glitches. Eurogamer also criticized the decision to continue the Sonic Adventure (1998) style of gameplay, believing that Sonic Team had learned nothing from the criticisms of past games.
Reviewers singled out the game's camera system, loading times, controls, level designs, and glitches. GameSpot said the level design was worsened by the frustrating camera system, and Game Informer criticized the game's high difficulty, citing the camera as causing most deaths. Some reviewers were unhappy that the majority of the game was not spent playing as Sonic; playing as Tails, GameSpot wrote, made a level boring. Similar criticism was offered by Eurogamer, finding that the supporting cast annoyed rather than fleshing the game out; they considered the camera system to be the worst they had ever seen in a video game. On the positive side, 1UP felt that despite the control and level design problems, the game still played like a Sonic game.
The plot was criticized as confusing and inappropriately dark. GamesRadar considered it overwrought and "conceptually challenged", and Eurogamer found its voice acting painful and its cutscenes cringeworthy. Some reviewers unfavorably compared the story to that of an anime or Final Fantasy. The romance between Sonic and the human Princess Elise was especially criticized; for GamesTM, it marked the point "the [Sonic] series had veered off into absolute nonsense."
"This ... is a mess from top to bottom", wrote GameSpot, that "only the most blindly reverent Sonic the Hedgehog fan could possibly squeeze any enjoyment out of". IGN said that the game had some redeeming qualities, with brief segments of gameplay that demonstrated how a next-generation Sonic game could work, but found it "rips them away as soon as it shows them" and concluded that the game failed to reinvent the series. Eurogamer believed that Sonic the Hedgehog's mistakes would have been noticed even if the game had been released in 1996.
Despite the mostly negative reception, Game Informer and Dave Halverson of Play Magazine defended the game. Game Informer described it as ambitious and praised the graphics, story, amount of content, and replay value, but believed only Sonic fans would enjoy the game. Halverson initially gave the Xbox 360 version a 9.5/10, praising each character's controls and abilities and calling it the best 3D Sonic game yet. In the following issue, Halverson reassessed it as 8.5/10, writing that he had been told that the load times and glitches in his review copy would not be in the final version of the game. In a later review of the PlayStation 3 version, Halverson was frustrated that the problems had still not been corrected and that the performance was worse despite the extra development time; Halverson gave this version a 5.5/10. The A.V. Club said in 2016 that despite its poor quality, the soundtrack has some "genuine rippers".
GameTrailers and GamesRadar considered Sonic the Hedgehog one of the most disappointing games of 2006. GamesTM singled out the game when it ranked the Sonic franchise at the top of their list of "Video Game Franchises That Lost Their Way". The A.V. Club, Kotaku, Game Informer, and USgamer called the game the worst in the Sonic series, and the staff of GamesRadar named it among the worst video games of all time. The game remains popular for "Let's Play" walkthroughs, with players showing off its glitches. The official Sonic Twitter account also mocks the game. The failure of Sonic the Hedgehog led to the direction of the series being rethought. The next main Sonic game, 2008's Unleashed, ignored the gritty and realistic tone of its predecessor. With Unleashed's sequel Sonic Colors (2010), The A.V. Club wrote, "the series rediscovered its strength for whimsical tales with light tones."
Sonic the Hedgehog introduced Silver the Hedgehog, Princess Elise, Mephiles, and Iblis to the franchise; most have made few appearances since. Silver is a playable character in Sonic Rivals (2006) and its sequel, in Sonic Riders: Zero Gravity (2007), and in Mario & Sonic at the Olympic Winter Games and its sequels, and is a minor character in the Nintendo DS version of Sonic Colors (2010) and Sonic Forces (2017). He also appeared in the Sonic the Hedgehog comic book series published by Archie Comics. The main theme of Sonic the Hedgehog, "His World", was sampled in Drake's 2017 song "KMT".
To celebrate the Sonic franchise's 20th anniversary in 2011, Sega released Sonic Generations, which remade aspects of past Sonic games. The PlayStation 3, Xbox 360, and Windows versions feature a remake of Sonic the Hedgehog's "Crisis City" level, and every version, including the Nintendo 3DS version, includes a reimagined version of the boss battle with Silver. The decision to include Sonic the Hedgehog stages and bosses in Sonic Generations was criticized by critics and fans of the series; Jim Sterling of Destructoid referred to the Silver boss fight as the "catch" of the otherwise high-quality game.
In 2015, a fan group, Gistix, began developing a remake for Windows using the Unity engine. A demo was released in January 2017, and was positively received by journalists. A second demo was released in late 2017, which Eurogamer called ambitious. A second team of fans, led by ChaosX, began developing a separate PC remake in Unity under the codename "Project 06", releasing a demo in early 2019.
- Bettenhausen, Shane (November 15, 2006). "Reviews: Sonic the Hedgehog for Xbox 360". 1UP.com. Ziff Davis. Archived from the original on July 19, 2012.
- Lee, Patrick (June 23, 2016). "The best, worst, and weirdest games from 25 years of Sonic The Hedgehog". The A.V. Club. The Onion. Archived from the original on January 17, 2017. Retrieved May 31, 2017.
- Gerstmann, Jeff (November 21, 2006). "Sonic the Hedgehog Review". GameSpot. CBS Interactive. Archived from the original on June 20, 2016. Retrieved March 21, 2017.
- Vore, Bryan (January 2007). "Sonic the Hedgehog for Xbox 360 Review from Game Informer". Game Informer. Archived from the original on November 29, 2006. Retrieved September 8, 2008.
- Black, Fletcher (November 14, 2006). Sonic the Hedgehog (PS3, 360) (Prima Official Game Guide). Prima Games. ASIN 0761555102.CS1 maint: ASIN uses ISBN (link)
- Sonic the Hedgehog instruction manual. Sega. November 14, 2006.
- Castro, Juan (November 30, 2006). "Sonic the Hedgehog Review". IGN. Ziff Davis. Archived from the original on October 17, 2016. Retrieved March 21, 2017.
- Halverson, Dave (November 2006). "Sonic the Hedgehog". Play Online. Play Magazine. Archived from the original on January 23, 2009. Retrieved March 18, 2017. Only the first page of the review is archived.
- Fahey, Rob (November 24, 2006). "Sonic The Hedgehog". Eurogamer.net. Gamer Network. Archived from the original on March 1, 2017. Retrieved March 22, 2017.
- "ダウンロードコンテンツ | Sonic the Hedgehog" (in Japanese). Sega. Archived from the original on February 4, 2012. Retrieved December 12, 2012.
- Sonic Team. Sonic the Hedgehog. Scene: "Elise Puts Out the Flames".
Elise: This is where everything began. Who knew such a tiny flame could bring such devastation? If we put out this flame, Solaris will never exist, And then we'll never have to worry about the Flames of Disaster, right? But our encounter... You and I will never meet. It will never have happened.
- "Sonic Channel / Creator's Interview / 010: Shun Nakamura". Sonic Channel (in Japanese). Sega. Archived from the original on October 29, 2016. Retrieved March 20, 2017.
- Amaike, Yoshinari. "Creating Silver the Hedgehog". IGN. Ziff Davis. Archived from the original on June 5, 2016. Retrieved March 20, 2017.
- Eddy, Andy (May 24, 2006). "E3 2006: Sonic Team Interview". TeamXbox. pp. 1–3. Archived from the original on October 22, 2013. Retrieved February 22, 2019.
- Shea, Brian (November 14, 2016). "Where Sonic Went Wrong". Game Informer. GameStop. Archived from the original on August 8, 2017. Retrieved August 7, 2017.
- "Soleanna communication: Finally last". Sonic Channel. Sega. Archived from the original on March 26, 2016. Retrieved September 7, 2017.
- Dunham, Jeremy (September 17, 2005). "TGS 2005: Sonic PS3 Named". IGN. Ziff Davis. Archived from the original on June 24, 2015. Retrieved January 8, 2013.
- "Sega's Yuji Naka Talks!". GameSpy. IGN. September 30, 2005. Archived from the original on February 23, 2017. Retrieved November 19, 2016.
- Gantayat, Anoop (September 17, 2005). "TGS 2005: Eyes-on Sonic Next-Gen". IGN. Ziff Davis. Archived from the original on December 1, 2014. Retrieved January 8, 2013.
- Williams, Bryn (May 4, 2006). "GameSpy: Sonic the Hedgehog". GameSpy. IGN. Archived from the original on October 11, 2008. Retrieved August 19, 2017.
- Torres, Ricardo (May 8, 2006). "E3 06: Sonic the Hedgehog Preshow Report: Sonic Goes Next-Gen". GameSpot. CBS Interactive. Archived from the original on April 25, 2015. Retrieved March 20, 2017.
- "Soleanna communication: Shadow's story". Sonic Channel. Sega. Archived from the original on March 29, 2016. Retrieved September 6, 2017.
- "Blur Studio: Bring Sonic to Life With Morph-O-Matic". Di-O-Matic.com. Archived from the original on April 8, 2016. Retrieved February 13, 2017.
- McFerran, Damien (September 14, 2016). "How Sega can save its mascot with Sonic Mania". Red Bull. Archived from the original on July 30, 2017. Retrieved June 14, 2017.
- Fahey, Mike (November 15, 2016). "Ten Years Ago Sonic The Hedgehog Was At Its Worst". Kotaku Australia. Gawker Media. Archived from the original on November 17, 2016. Retrieved March 18, 2017.
- Hester, Blake. "Sonic the Hedgehog's long, great, rocky history". Polygon. Retrieved March 27, 2018.
- Sonic Riders instruction manual (UK). Sega. March 17, 2006. p. 36.
- Thomason, Steve. "New Blue". Nintendo Power. No. 213. pp. 32–36.
- Burman, Rob (February 6, 2007). "Lifting the lid on Sonic's Secret Rings". IGN. Archived from the original on December 16, 2008. Retrieved November 9, 2009.
- "Sonic Wii Interview with Yojiro Ogawa, page 3". Games.kikizo.com. February 20, 2007. Archived from the original on December 27, 2008. Retrieved December 12, 2012.
- Greg Edwards (October 6, 2006). "GameSpy: Sonic the Horndog - Page 2". GameSpy. IGN. p. 2. Archived from the original on May 26, 2012.
- Chris, Greening (December 5, 2015). "Tomoya Ohtani Interview: Sonic Music for a New Generation". Video Game Music Online. Retrieved August 22, 2018.
- Sonic Team (November 14, 2006). Sonic the Hedgehog. Sega. Level/area: Credits.
- "Sonic the Hedgehog". Sega. Archived from the original on October 4, 2006. Retrieved September 29, 2006.
- Carter, Chris (March 17, 2017). "How does Sonic Forces' main theme measure up to past games?". Destructoid. Enthusiast Gaming. Archived from the original on March 31, 2017. Retrieved September 5, 2017.
- (January 10, 2007) Sonic the Hedgehog Original Soundtrack. Sega.
- Sega (October 12, 2011). "Sonic the Hedgehog 1 & 2 Japan - Dreams Come True". Famitsu. Famitsu Japan. Archived from the original on March 4, 2016. Retrieved September 5, 2017.
- Sega (January 10, 2007). "Sonic Series: Game Music/Animation/Soundtrack/Movie/Miscellaneous". Wave Master (in Japanese). Wave Master, Co. Archived from the original on March 31, 2016. Retrieved October 4, 2017.
- Sonic the Hedgehog Vocal Traxx: Several Wills booklet, pages 1—2.
- Clayman, David (May 18, 2005). "E3 2005: SEGA Hits the Next Level". IGN. Ziff Davis. Archived from the original on September 29, 2014. Retrieved January 8, 2013.
- Castro, Juan. "Sonic: HD Tour". IGN. Ziff Davis. Archived from the original on January 28, 2016. Retrieved May 26, 2017.
- Yoon, Andrew (December 4, 2006). "Sega and Microsoft create new deal to promote Sonic Rivals". Engadget. Oath, Inc. Archived from the original on August 1, 2017. Retrieved July 31, 2017.
- "Sonic the Hedgehog - Xbox 360". IGN. Ziff Davis. Archived from the original on November 4, 2016. Retrieved February 7, 2017.
- "Sonic the Hedgehog (Xbox Live Arcade)". Eurogamer. Gamer Network. Archived from the original on March 18, 2017. Retrieved May 27, 2017.
- Sonic Team. "Xbox 360". Sonic Channel (in Japanese). Sega. Archived from the original on March 4, 2016. Retrieved May 26, 2017.
- Sonic Team. "PlayStation 3". Sonic Channel (in Japanese). Sega. Archived from the original on October 25, 2016. Retrieved May 26, 2017.
- "Sonic the Hedgehog - PlayStation 3". IGN. Ziff Davis. Archived from the original on February 9, 2017. Retrieved February 7, 2017.
- Reiner, Andrew (March 12, 2017). "Super Replay – The Worst Sonic The Hedgehog Ever". Game Informer. GameStop. Archived from the original on March 13, 2017. Retrieved March 13, 2017.
- Sterling, Jim (May 10, 2009). "Nipples discovered in Sonic 2006: OH THE SCANDAL!". Destructoid. Enthusiast Gaming. Archived from the original on March 3, 2016. Retrieved August 17, 2017.
- Arendt, Susan. "Sonic Boss Fights Downloadable from XBL". Wired. Condé Nast. Archived from the original on February 10, 2016. Retrieved September 2, 2017.
- Doerr, Nick. "Sonic for PS3 delayed -- it's like rain on your wedding day". Engadget. Oath Inc. Archived from the original on September 2, 2017. Retrieved September 2, 2017.
- Sega. "Sonic the Hedgehog". Xbox Live Marketplace. Microsoft. Archived from the original on November 6, 2016. Retrieved March 22, 2017.
- McWhertor, Michael (October 7, 2010). "Sega Doesn't Want Sub-par Sonic Games On Shelves Anymore". Kotaku. Retrieved February 22, 2019.
- ""Sonic the Hedgehog Reviews (X360) Archived April 29, 2013, at the Wayback Machine". Metacritic. CBS Interactive. Retrieved on November 22, 2008.
- "Sonic the Hedgehog Reviews (PS3) Archived January 7, 2013, at the Wayback Machine". Metacritic. CBS Interactive. Retrieved on November 22, 2008.
- Famitsu (2006). "Sonic the Hedgehog – Famitsu Scores Archive". Archived from the original on December 27, 2008. Retrieved October 27, 2011.
- Gerstmann, Jeff (February 2, 2007). "Sonic the Hedgehog Review". GameSpot. CBS Interactive. Archived from the original on June 20, 2016. Retrieved March 22, 2017.
- "GameSpy:Sonic the Hedgehog Review". GameSpy. IGN. Archived from the original on September 20, 2008. Retrieved July 20, 2008.
- Leeper, Justin (November 21, 2006). "Sonic The Hedgehog review". GamesRadar. Future Publishing. Archived from the original on March 4, 2016. Retrieved March 22, 2017.
- Sandoval, Angelina (January 5, 2007). "Sonic the Hedgehog – 360 – Review". GameZone. Archived from the original on October 29, 2013. Retrieved December 4, 2011.
- Dunham, Jeremy (February 7, 2007). "Sonic the Hedgehog Review". IGN. Ziff Davis. Archived from the original on March 25, 2016. Retrieved March 22, 2017.
- Taylor, Andrew (May 31, 2007). "Xbox Review: Sonic The Hedgehog". Official Xbox Magazine UK. Future Publishing. Retrieved March 22, 2017.
- Halverson, Dave (February 2007). "PS3 : Sonic the Hedgehog". Play Magazine. Archived from the original on February 4, 2007. Retrieved October 27, 2011.
- Kelly, Andy (March 23, 2007). "Sonic The Hedgehog Review". Computer and Video Games. Future Publishing. Archived from the original on January 8, 2013. Retrieved March 18, 2017.
- Haught, Jeb (November 29, 2006). "Sonic The Hedgehog Review (X360)". TeamXbox. Archived from the original on March 4, 2012. Retrieved April 12, 2012.
- Mastrapa, Gus (February 12, 2007). "Sonic the Hedgehog". The A.V. Club. Archived from the original on October 29, 2013. Retrieved October 27, 2013.
- Elston, Brett (April 9, 2008). "The rise, fall and deafening crash of Sonic the Hedgehog". GamesRadar. Future Publishing. p. 4. Archived from the original on October 18, 2016. Retrieved June 9, 2017.
- Alfonso, Andrew (September 24, 2006). "Sonic the Hedgehog". GameSpy. IGN. Archived from the original on March 6, 2016. Retrieved August 19, 2017.
- "10 Videogame Franchies that Lost their Way". GamesTM. Imagine Publishing (90): 156–7. November 2009.
- "The 100 worst games of all time". GamesRadar. Future Publishing. December 2, 2015. Archived from the original on February 2, 2017. Retrieved May 31, 2017.
- "Full Year Results" (PDF). Sega Sammy Holdings. May 14, 2007. Archived (PDF) from the original on July 29, 2016. Retrieved June 11, 2017.
- "Sonic the Hedgehog Box Shots and Screenshots for Xbox 360". GameRankings. CBS Interactive. Retrieved January 29, 2018.
- GamesRadar US (January 17, 2017). "GamesRadar's Anti-awards 2006". GamesRadar. Future Publishing. p. 17. Archived from the original on September 17, 2016. Retrieved March 22, 2017.
- GamesRadar US (April 23, 2008). "The absolute worst Sonic moments". GamesRadar. Future Publishing. Archived from the original on March 6, 2016. Retrieved March 22, 2017.
- Sterling, Jim. "The 10 worst Sonic friends". GamesRadar. Future Publishing. Archived from the original on November 1, 2013. Retrieved June 6, 2017.
- Klepek, Patrick (September 17, 2015). "Remember When Sonic Kissed A Woman?". Kotaku. Gawker Media. Archived from the original on January 28, 2017. Retrieved June 8, 2017.
- Meikleham, Dave (February 11, 2015). "The 8 wrongest romances in video games". GamesRadar. Future Publishing. Archived from the original on December 6, 2016. Retrieved May 31, 2017.
- GameTrailers (May 19, 2016). "Top 10 Disappointments of the Decade". YouTube. Alphabet. Archived from the original on April 7, 2017. Retrieved September 22, 2017.
- USgamer Team (August 18, 2017). "Gotta Go Fast: Ranking All of The Sonic The Hedgehog Games". USgamer. Gamer Network. Archived from the original on August 21, 2017. Retrieved August 21, 2017.
- Shea, Brian. "More Burning Questions About The Sonic The Hedgehog Franchise Answered". Game Informer. GameStop. Archived from the original on August 8, 2017. Retrieved August 7, 2017.
- Schroder, Ben (October 12, 2006). "Wot, no Robotnik?". GamesRadar. Future Publishing. Archived from the original on August 8, 2017. Retrieved August 7, 2017.
- Castro, Juan (November 22, 2006). "Sonic Rivals Review". IGN. News Corporation. Archived from the original on April 15, 2016. Retrieved May 29, 2017.
- "Sonic Riders: Zero Gravity dives into stores". GameZone. January 8, 2008. Retrieved June 20, 2017.
- Mazique, Brian (July 3, 2016). "'Mario & Sonic At The Rio 2016 Olympic Games' Review: This Is Really Fun". Forbes. Archived from the original on July 3, 2016. Retrieved May 29, 2017.
- Sterling, Jim (November 14, 2010). "Review: Sonic Colors DS". Destructoid. Enthusiast Gaming. Archived from the original on August 28, 2016. Retrieved June 20, 2017.
- Meister, Rich. "Sonic Forces story trailer shows a world ruled by Eggman". Destructoid. Retrieved November 26, 2017.
- Flynn, Ian (October 10, 2012). The Complete Sonic the Hedgehog Comic Encyclopedia. Archie Comics. ISBN 978-1-936975-25-9.
- Bychawski, Adam. "Drake's More Life: Here are the full credits and samples, from Sonic the Hedgehog to Lionel Ritchie". Fact Magazine. Retrieved October 27, 2017.
- "Sonic Generations video shows Crisis City, Rooftop Run, and Planet Wisp levels". VG247. October 7, 2011. Archived from the original on December 11, 2011. Retrieved December 12, 2012.
- Gilbert, Henry (October 14, 2011). "Sonic Generations bosses trailer shows some of the jerks you'll be jumping on". GamesRadar. Future Publishing. Archived from the original on November 24, 2011. Retrieved March 22, 2017.
- Sterling, Jim (October 11, 2011). "BARF: Silver the Hedgehog is in Sonic Generations". Destructoid. Enthusiast Gaming. Archived from the original on March 5, 2016. Retrieved March 22, 2017.
- Johnson, Leif. "Some Modders Have Spent Over a Year Remaking the Worst 'Sonic' Game for PC". Motherboard. Vice. Archived from the original on January 9, 2017. Retrieved January 8, 2017.
- Workman, Robert (January 10, 2017). "A Revamped Sonic the Hedgehog 2006 Demo Has Arrived…And It Doesn't Suck". WWG. ComicBook.com. Retrieved May 29, 2017.
- Miller, Daniel (January 10, 2017). "[Watch] Sonic The Hedgehog 2006 has been remade into a game that doesn't suck". GameZone. Archived from the original on August 8, 2017. Retrieved August 8, 2017.
- Linneman, John (October 8, 2017). "How community coders are remaking the best - and the worst - Sonic games". Eurogamer. Gamer Network. Retrieved March 31, 2018.
- cite web|last1=Horti|first1=Samuel|title=You can now play the terrible Sonic '06 on PC thanks to this Unity remake|url=https://www.pcgamer.com/you-can-now-play-the-terrible-sonic-06-on-pc-thanks-to-this-unity-remake/%7Cwebsite=PC Gamer|accessdate=April 21, 2019|date=July 15, 2019}}