|Series||Sonic the Hedgehog|
Sonic Adventure[a] is a platform video game developed by Sonic Team and published by Sega. Originally released for the Dreamcast, it was the first game in the main Sonic the Hedgehog series since Sonic & Knuckles (1994), and follows the respective quests of Sonic, Tails, Knuckles, Amy, E-102 Gamma, and Big to stop Doctor Ivo "Eggman" Robotnik from obtaining the seven Chaos Emeralds and releasing an ancient evil.
Development of Sonic Adventure began in 1997 for the Sega Saturn, before being shifted to the Dreamcast. The game's settings were inspired by real-world locations such as Peru and Guatemala, and the protagonists were redesigned to better suit the series' transition to 3D. The title was largely kept a secret until being officially announced in August 1998, and was first released in Japan in December of that year. Enhanced ports of the game were released in 2003 for the Nintendo GameCube and Microsoft Windows. It has since been re-released as a downloadable game for Xbox 360 via Xbox Live Arcade, and PlayStation 3 via PlayStation Network in 2010.
Upon its release, Sonic Adventure received highly positive reviews. Critics praised its graphics, gameplay, and audio, though some criticized its camera and voice acting. It became the best-selling game for the system, selling 2.5 million copies. However, retrospective reviews have been less positive, as critics felt the game has not aged well. A sequel, Sonic Adventure 2, was released in 2001.
Sonic Adventure is a platform game in which the player controls six different characters: the titular Sonic, Tails, Knuckles, Amy, Big, and E-102 Gamma. They must stop Doctor Eggman from stealing the seven Chaos Emeralds and feeding them to Chaos, a monster known as "the God of Destruction", and defeat them both. The first main game in the Sonic the Hedgehog series to feature free-roaming 3D gameplay, Sonic Adventure features two game modes: Adventure and Trial. There are different goals for each character in the game: Sonic involves high-speed gameplay, while Tails must reach the end of the level before Sonic does, and Knuckles searches the area for shards of the Master Emerald. The three characters retain many of their trademark moves from previous Sonic games, such as Tails being able to fly for short periods of time, and Knuckles being able to glide through the air, though they can use updated techniques as well. The rest of the playable cast is rounded out by Amy, who must use her hammer to escape from Eggman's E-100 Zero robot chasing after her, Gamma, who must use its laser beam to shoot through levels to reach a target, and Big, who fishes in efforts to find his friend, Froggy. The player is given five lives, which are lost when any character is hit by an enemy or obstacle with no rings in their possession, falls into a bottomless pit, or drowns. The game ends when the player runs out of lives, with more lives earned by finding extra life items.
The "Adventure Mode" is a one-player game which consists of two areas, the "Adventure Field" and an "Action Stage". The Adventure Field contains several "Events" that are encountered in the course of the story, while the Action Stages have each character fulfilling a goal to clear the stage. Players may also find hidden Chao Gardens, a protective environment inhabited by Chao, a sort of virtual pet. The player can hatch, raise and interact with a Chao. Chao can be taken with the player by downloading the minigame Chao Adventure to their VMU, or in the GameCube version, a Game Boy Advance with Sonic Advance or various other Game Boy Advance Sonic games. The player can also raise their stats by giving them small animals that they found by defeating the robots, which improves their performance in Chao Races. There are also eggs hidden throughout the Adventure Fields which can produce special types of Chao.
By playing through Action Stages and Subgames, searching through the Adventure Fields or winning Chao Races, players can earn Emblems. In the case of Action Stages, each one has three Emblems, which can be earned by replaying the stages and fulfilling certain objectives, such as beating the level within a time limit. In Sonic Adventure DX, these can unlock hidden extras such as Game Gear games.
The story is told from the perspectives of six different characters, each of their narratives intersecting with one another before converging in a final chapter. The titular protagonist of the game is Sonic, a hedgehog with the ability to run at supersonic speeds who has returned home after a long journey. His longtime friend is Tails, a fox who is a skilled mechanic and can fly using his two tails. Knuckles is an echidna with the ability to glide; he is the guardian of the Master Emerald, a powerful gem that keeps his home of Angel Island floating in the sky. Amy is a pink hedgehog who wields a large hammer and views Sonic as her love interest. E-102 Gamma is a gunner robot belonging to the E-100 Series tasked with serving his creator. Big is a giant cat interested in fishing and is usually accompanied by his friend, Froggy. The characters are aided by Tikal, a mysterious female echidna who shows the characters visions of the distant past, and also gives out hints to the player.
The main antagonist is Dr. Ivo "Eggman" Robotnik, an evil scientist who plans to use the Chaos Emeralds, a group of mysterious emeralds with unlimited power, to conquer Earth. Aiding Eggman is Chaos, a liquid life-form who takes on more powerful forms each time it collects a Chaos Emerald. Chaos was previously sealed by Tikal after her father Pachacamac, ruler of the Ancient Echidna Tribe, attempted to steal the Chaos Emeralds from the shrine but has been freed due to Eggman's actions. Also aiding Eggman is the E-Series, a line of robots created by Eggman to facilitate his conquest. All of them have letters of the Greek alphabet as part of their name. E-100 Alpha (better known as Zero), the first E-series robot constructed as a prototype, is dispatched to retrieve Amy's friend Birdie. Other E-Series robots, including E-101 Beta, E-103 Delta, E-104 Epsilon, and E-105 Zeta, are demoted to lesser positions following Gamma's successes.
Tikal discovers the seven Chaos Emeralds and befriends Chaos, the Emeralds' peaceful guardian, and the Chao. Despite Tikal's warnings, Pachacamac and their tribe attack the shrine, attempting to use the Emeralds for world domination. Chaos transforms into Perfect Chaos and kills the tribe. Tikal seals Chaos and herself inside the Master Emerald to stop it.
Three thousand years later, Knuckles guards the Master Emerald on the floating Angel Island. Doctor Eggman shatters the Emerald, freeing Chaos. Angel Island falls into the sea, scattering the Master Emerald's shards. Knuckles resolves to search for the shards. In the city of Station Square, Sonic battles Chaos. The next morning, Tails' test of his Chaos Emerald-powered engine fails and he crashes. Sonic rescues Tails and they visit Tails's workshop in the Mystic Ruins, where Eggman confronts them. Sonic defeats him, but Eggman steals Tails' Emerald and transforms Chaos, revealing his plan: harnessing the Emeralds' power, Chaos will destroy Station Square and Eggman will build Robotnikland over its ruins. Sonic and Tails resolve to find the emeralds, but lose three to Eggman and Chaos, who escape to his airship, the Egg Carrier. Sonic and Tails pursue the ship in their plane, the Tornado, but Eggman shoots it out of the sky.
Eggman activates Gamma, who defeats Beta in training and accompanies the E-Series robots to search for Froggy, who has eaten Chaos's tail and a Chaos Emerald. Gamma finds Froggy but is chased back to the ship by Froggy's friend Big. Reminiscing about her time with Sonic, Amy discovers a Flicky in possession of a Chaos Emerald, naming it Birdie. Zero captures Amy and Birdie and detains them on the Egg Carrier. Tails arrives in the Tornado II, powered by another Emerald, and he and Sonic give chase. Knuckles boards the aircraft after seeing a vision of the Egg Carrier in the Master Emerald.
Aboard the Egg Carrier, Amy convinces Gamma that he should not work for Eggman. In a confusion of newly discovered emotions, Gamma releases Amy and Birdie. Sonic, Tails, and Knuckles enter the carrier and destroy it. Amy is pursued by Zero and reunites with Sonic and Tails before Eggman steals Birdie's Emerald. Sonic defeats Gamma, but Amy convinces Sonic to spare him. The ship loses altitude and Tails, Amy, and Gamma flee. Sonic defeats Chaos, now with six Emeralds and his tail restored, and pursues Eggman. Big retrieves Froggy from inside Chaos before escaping in the Tornado II. Knuckles steals back the six Chaos Emeralds and flees.
Gamma tracks down his brother robots and frees the animals inside them. Returning to the crashed Egg Carrier, Gamma defeats the rebuilt Beta and self-destructs. Birdie's parents are released from within the two. Amy reunites Birdie with his family on the airship, where she confronts and destroys Zero. Amy sees Birdie and his family off before vowing to earn Sonic's respect. Tails chases Eggman, stops him from detonating a missile in Station Square, and defeats his Egg Walker. Sonic navigates Eggman's base at the Mystic Ruins and destroys the Egg Viper.
Knuckles restores the Master Emerald, but Angel Island falls again when Chaos attacks him and Eggman. Chaos reabsorbs the Chaos Emeralds and locates the seventh inside the crashed Tornado II. Chaos transforms into Perfect Chaos, draining the Emeralds of their negative energy, and destroys Station Square in a flood. Sonic's friends gather the emeralds and Tikal appears, demanding that Chaos be sealed back in the Master Emerald. Sonic objects, saying Chaos's heart would still be filled with anger and sadness. Instead, Sonic uses the Emeralds' positive energy to become Super Sonic and defeat Perfect Chaos. Chaos discovers the Chao thrive in Station Square, quelling its anger. Tikal and Chaos disappear before Sonic chases a fleeing Eggman.
The development of Sonic Adventure began around April 1997 with a development team of 30 members. After developing several titles for the Sega Genesis, producer Yuji Naka worked mainly on the game Nights into Dreams... for the Sega Saturn. Sonic Team started to work on an original 3D Sonic title for the Saturn, but development was ultimately shifted to the Dreamcast; according to Naka, remnants of the project can be seen in the compilation Sonic Jam. The development team focused on graphics and high resolution for this game, with Naka reflecting that "[w]e have pushed the Dreamcast as far as we can at present".
Director Takashi Iizuka, having developed Nights into Dreams..., proposed to Naka that they should develop a role-playing video game-style Sonic game. In order to achieve a more natural, realistic feel to the exotic levels like ruins and jungles, the core members of the Sonic Team traveled to Central America and South America. The team visited Cancun, Guatemala, and Peru, and used pictures taken from their journey as "textures in the games." For Tails' sandboarding, the development team used a group of people boarding on sand dunes in Ica, Peru as a reference.
Naka aimed to create levels that would take the player at least five minutes to complete, yet retain similar gameplay to the Mega Drive titles. Following the creation of the basic level maps, Naka wondered "why don't we use this map for other characters?" This led to the introduction of Big and E-102. The development team conducted surveys of fans to ensure that the final product, especially the characters, would please them. The character of Sonic was redesigned for the game by Sonic Team artist Yuji Uekawa, with longer legs and spines that Iizuka subsequently noted were more suitable for 3D than Sonic's original and more compact design, which was meant to be seen from the side. Certain levels, such as "Lost World," were rebuilt dozens of times. Sega made it a top priority to keep the game a secret until shortly before its release. Despite these efforts, screenshots were leaked onto the Internet in mid-1998. Naka presented the game to Edge in mid-August, and official announcement fell on August 22 in Japan.
In February 1999, Sega's vice president Tadahiko Hirose announced that Sonic Adventure would be released along with Virtua Fighter 3tb and Sega Rally 2 as launch titles for the Dreamcast's international release. In June 1999, Sega announced that Sonic Adventure would be one of the five titles in the Dreamcast's "Masterpiece Collection". The North American version of the game includes Japanese and English-language audio tracks, as well as Japanese, English, Spanish, French and German subtitles. Online features like Leader boards, online Chao daycare, and downloadable content were also added for the localization.
The game's music was written by Jun Senoue, Fumie Kumatani, Kenichi Tokoi, and Masaru Setsumaru, and contains vocal performances from Tony Harnell, Karen Brake, Marlon Saunders, Dred Foxx, Ted Poley, Nikki Gregoroff, and Johnny Gioeli, the latter of whom would later join Senoue to form the band Crush 40. The development team preferred the use of "hot, funky, and rock 'n' roll" music over the traditional electropop-based music present in earlier Sonic games. Several soundtrack albums for the game were released. Sonic Adventure Songs With Attitude ~Vocal mini-Album~, with character theme tracks by Senoue, Kumatani, and Tokoi, was released in Japan by Marvelous Entertainment on December 2, 1998. The full soundtrack, titled Sonic Adventure "Digi-LOG Conversation" Original Sound Track, was released in Japan on January 29, 1999. For the twentieth anniversary of the Sonic series, Sonic Adventure Original Soundtrack 20th Anniversary Edition was released on iTunes on May 18, 2011. On September 10, 2014, a two-volume original soundtrack was also released on iTunes.
Sonic Adventure was first released in Japan on December 23, 1998. The North American version of the game was released on September 9, 1999. Prior to the official launch of the Dreamcast in the U.S., Sega of America formed an exclusive deal with Hollywood Video to allow customers to rent the Dreamcast console along with Sonic Adventure. This promotion began on July 15, 1999 and took place at 1,055 Hollywood Video stores across the country. This non-retail version of the game that was included, titled Sonic Adventure: Limited Edition, featured an initial English of the game's text and voice overs, as well as improvements to Japanese version's controls and camera.
In 2003, a port was released for the GameCube and Windows titled Sonic Adventure DX: Director's Cut. While the game is mostly identical to the initial Dreamcast release, Sonic Adventure DX features enhancements such as additional missions and graphical improvements such as refined textures and more detailed character models. It also contains an unlockable compilation that features emulations of all twelve Sonic the Hedgehog titles released for the Sega Game Gear.[b] Also, if all Emblems are collected, the player can play as Metal Sonic in Sonic's stages.
In 2010, Sega digitally released Sonic Adventure on both the Xbox Live Arcade and the PlayStation Network. The Xbox Live Arcade version was released on September 15, 2010, while the PlayStation Network version was released on September 20, 2010. The initial release is based on the PC version of Sonic Adventure DX despite the game simply being called "Sonic Adventure". The DLC package, simply titled "Sonic Adventure DX Upgrade", has launched alongside the game on XBLA, and PSN, which upgrades the game to include all of the features from the DX version with the exception of the Game Gear games. This port was later released on March 4, 2011 as a digital download for Windows via Steam. The game was also included as part of the Dreamcast Collection compilation.
Sonic Adventure received highly positive reviews from critics upon its release. On review aggregate website GameRankings, it holds a score of 87% based on 21 reviews. By August 2006, the game had sold over 2.5 million units worldwide, making it the best-selling Dreamcast game. This includes one million sold in the United States.
The Japanese video game magazine Famitsu gave the game a score of 38/40. Brandon Justice of IGN rated the game an 8.6/10, criticizing various glitches and voice acting while praising the game's visuals and gameplay.Adventure was acclaimed by the Arcade magazine as a "quantum leap forward" in aesthetics and visual detail in video games, estimated by Hyper to exceed that which was possible on high-end PCs. Computer and Video Games stated shortly after release that Sonic Adventure was possibly one of the best games ever made, and marveled that "many things you thought were impossible to see and experience in computer games are now here." Edge's preview stated that graphical features like an "amazingly detailed cityscape" showed off the Dreamcast's potential, comparing it to Super Mario 64's role for the Nintendo 64, and exclaimed that "as a showcase of what the machine can do, Sonic Adventure is perfect." Speculation arose that the game could save the Dreamcast, which had not sold well so far by the end of 1998, or even re-establish Sega as the dominant console manufacturer after the relatively unsuccessful Saturn.
Writers at GamesRadar have stated that, as Sonic Adventure was one of the first sixth generation console games, "the gaming world was changed forever" despite the presence of some glitches. Travis Fahs of IGN asserted in 2010 that it is still remembered as the most impressive Sonic game from after the Genesis era and that, despite Sega's efforts, no post-Dreamcast Sonic game has achieved similar success. Taylor Cocke of Joystiq has stated that the original Sonic the Hedgehog and Adventure both succeeded and innovated in gaming—among 2D and 3D games, respectively—by feeling "good to play" and making effective use of linear level design. In 2009, GamePro listed the game as the seventh-best platformer of all time, asserting that while it had not aged well in certain respects, its core gameplay remained among the best of the series. According to game journalists Rusel DeMaria and Johnny L. Wilson, Sonic Adventure "wasn't a strong enough title" and "failed to catch on with players in nearly the way that Mario 64 had done," "though it had many fascinating features, including the use of the Tamagotchi-like memory card to incubate eggs for little pet creatures" and "some good action segments." In a 2006 retrospective, Retro Gamer's Sean Smith noted that while Adventure had its problems, it "still looks luscious and plays extremely well." Writing in 1001 Video Games You Must Play Before You Die, Kieth Stuart described Adventure as "Sonic Team's flawed masterpiece", praising its "vast, twisting environments" and noting "From driving bumper karts in Twinkle Park to legging it down the side of a skyscraper in Speed Highway, the game brilliantly captures traditional Sonic elements."
Although the original Dreamcast version of Adventure was positively received, later re-releases were not as acclaimed. Sonic Adventure DX received more mixed reviews, with the GameCube version receiving a 64% average on GameRankings. Matt Casamassina of IGN criticized the port for not addressing major problems of the original Dreamcast release, giving it a "Mediocre" rating of 5.0. Giancarlo Varanini of GameSpot voiced similar disapproval. Reviews for the PlayStation Network and Xbox Live Arcade versions of Sonic Adventure were unfavorable. 1UP.com criticized both the game's dated mechanics and the perceived lack of effort put into the port, which "feels like it wasn't even tuned for the Xbox 360 controller." IGN's Arthur Gies gave the Xbox 360 version a score of 3.5/10, calling it "so fundamentally flawed that it borders on unplayable", observing that the sections that worked best required the least input from the player. By contrast, PlayStation LifeStyle scored it 8/10, complimenting its gameplay and replayability, concluding that if players overlooked the game's flaws, "you'll easily find a gem (or emerald) in this Dreamcast classic."
Sonic Adventure received a comic book adaptation courtesy of Archie Comics' Sonic the Hedgehog on-going series. The story arc took place in issues #79-84 and Sonic Super Special #13, originally published from November 1999 to May 2000. This adaptation is notable for its permanent integration of characters and storylines from the video game into the pre-existing continuity of the comic series, providing explanations for the altered character design for Amy Rose and the history of Station Square hidden beneath Sonic's planet, Mobius.
Following Sonic Adventure, Sonic Team developed Sonic Adventure 2, the final Sonic game for the Dreamcast. Adventure also introduced two characters that would appear in later games and other media—Big and Gamma—as well as the ubiquitous Chao creatures. The plot of Sonic Adventure would later be adapted as a six-episode story arc in the second season of the 2003 animated series Sonic X.
In 2011, Sega released Sonic Generations, a game that remade aspects of various past games from the franchise. The PlayStation 3, Xbox 360, and PC version contained a remade "Speed Highway" level, and a remade battle with Perfect Chaos. The Nintendo 3DS version contained a remade version of the "Emerald Coast" level.
- ソニックアドベンチャー (Japanese: Sonikku Adobenchā)
- These include Sonic Drift, Sonic Chaos, Sonic Labyrinth, Sonic the Hedgehog: Triple Trouble, Sonic Drift 2, Tails' Skypatrol, Sonic Blast, Tails Adventure, and the 8-bit versions of Sonic the Hedgehog, Sonic the Hedgehog 2, Sonic the Hedgehog Spinball, and Dr. Robotnik's Mean Bean Machine.
- Gies, Arthur (23 September 2010). "Sonic Adventure Review". IGN. Retrieved 20 April 2013.
- Bartholow, Peter (31 December 1998). "Sonic Adventure Review". Gamespot. Archived from the original on 17 June 2012. Retrieved 20 April 2013.
- Sega, p. 7
- Bartholow, Peter (December 31, 1998). "Sonic Adventure Review". GameSpot. Archived from the original on June 17, 2012. Retrieved April 20, 2013.
- Gies, Arthur (September 23, 2010). "Sonic Adventure Review". IGN. IGN Entertainment. Retrieved April 20, 2013.
- Sega, p. 9
- Sega, p. 15
- Casamassina, Matt (June 21, 2003). "Sonic Adventure DX Director's Cut". IGN. IGN Entertainment. Retrieved April 20, 2013.
- Sega, p. 18
- Sega, p. 20
- Sega, p. 22
- Sega, p. 24
- Sega, p. 26
- Sega, p. 28
- Sega, p. 31
- ソニックチャンネル/キャラクター/キャラクターデータ/ガンマ (in Japanese). Sega. Archived from the original on March 9, 2009. Retrieved December 20, 2012.
- Sonic Team (1998). Sonic Adventure. Dreamcast. Sega. Level/area: Opening sequence 3.
Knuckles the Echidna: (a noise awakens him) What the..? (he sees Chaos) What's going on here?
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Opening sequence 3.
Knuckles the Echidna: Oh, no! It's starting to happen! Without the Master Emerald's power, this whole island will fall into the ocean!
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Chaos.
- Sonic Team (September 9, 1999). Sonic Adventure. Sega. Level/area: Opening sequence 2.
- Sonic Team (September 9, 1999). Sonic Adventure. Sega. Level/area: Eggman.
- Sonic Team (September 9, 1999). Sonic Adventure. Sega. Level/area: Mystic Ruins.
- Sonic Team (September 9, 1999). Sonic Adventure. Sega. Level/area: Sky Chase Act 1.
- Sonic Team (September 9, 1999). Sonic Adventure. Sega. Level/area: Opening sequence 6.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Opening sequence 4.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Mystic Ruins.
E-102 Gamma: Dr. Robotnik... Enemy... Master registration... Deleted. E-Series... Friends... (touches down on the ground) Must save...
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: E101mkII.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Ending sequence 6.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Zero.
Amy Rose: You idiot! How could you do this? (pulls out her Piko Piko Hammer) Now, you're gonna get it!
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Ending sequence 4.
Amy Rose: You did it! Now, you three can live in peace again! (Birdie's family flies off) I'm so happy! I'm going to try my best, too! Just watch me. I'll make that Sonic respect me!
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Egg Walker.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Egg Viper.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Ending sequence 3.
Knuckles the Echidna: (after restoring the Master Emerald) This should do it! Perfect. All is well now! The Master Emerald and the Island are restored.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Perfect Chaos.
- Sonic Team (September 9, 1999). Sonic Adventure. Dreamcast. Sega. Level/area: Ending sequence 7.
- Barnholt, Ray. "Yuji Naka Interview: Ivy the Kiwi and a Little Sega Time Traveling". 1UP.com. Archived from the original on 2014-03-04. Retrieved 2014-03-04.
- Towell, Justin (2012-06-23). "Super-rare 1990 Sonic The Hedgehog prototype is missing". GamesRadar. Retrieved 2014-03-04.
The reason why there wasn't a Sonic game on Saturn was really because we were concentrating on NiGHTS. We were also working on Sonic Adventure--that was originally intended to be out on Saturn, but because Sega as a company was bringing out a new piece of hardware--the Dreamcast--we resorted to switching it over to the Dreamcast, which was the newest hardware at the time. So that's why there wasn't a Sonic game on Saturn. With regards to X-Treme, I'm not really sure on the exact details of why it was cut short, but from looking at how it was going, it wasn't looking very good from my perspective. So I felt relief when I heard it was cancelled.
- "Sega Unveils Sonic Adventure". Edge. October 1998. pp. 6–7.
- The Secrets of Sonic - Director's Commentary with Takashi Iizuka. Tokyo: Sega. June 5, 2003.
- Mott, Tony (2013). 1001 Video Games You Must Play Before You Die. New York, New York: Universe Publishing. p. 370. ISBN 978-0-7893-2090-2.
- Thomason, Steve (January 2007). "Birth of a Hedgehog". Nintendo Power. Vol. 20 no. 211. Future Publishing. p. 72.
- "Summer Of Sonic 2011 - Takashi Iizuka & Yuji Naka Q&A". YouTube. 2012-03-25. Retrieved 2014-07-10. Event occurs at 18:20.
- Ohbuchi, Yutaka (February 2, 1999). "Sonic, VF3, Rally 2 lead US DC launch". GameStop. CBS Interactive. Retrieved January 19, 2013.
- IGN Staff (June 1, 1999). "Sega's New Challenge Conference '99 Report". IGN. News Corporation. Retrieved January 19, 2013.
- Gantayat, Anoop (August 28, 1999). "Sonic Adventure US Shocker". IGN. News Corporation. Retrieved January 19, 2013.
- Gantayat, Anoop (August 24, 1999). "Sonic Adventure: Internet Gaming!". IGN. News Corporation. Retrieved January 19, 2013.
- Smith, Sean (June 22, 2006). "Company Profile: Sonic Team". Retro Gamer. Vol. 3 no. 26. p. 27.
- "SONIC ADVENTURE Original Soundtrack 20th Anniversary Edition". iTunes. Retrieved 1 July 2015.
- "Sonic Adventure (Original Soundtrack), Vol. 1". iTunes. Retrieved 1 July 2015.
- "Sonic Adventure (Original Soundtrack), Vol. 2". iTunes. Retrieved 1 July 2015.
- "Dreamcast". Sonic Channel. Sega. Retrieved 7 August 2017.
- "Sonic Adventure - Dreamcast". IGN. Ziff Davis. Retrieved 7 August 2017.
- IGN staff (June 29, 1999). "Sega Releases Full Details of Rental Program". IGN. Retrieved October 24, 2014.
- Gantayat, Anoop (July 15, 1999). "Sonic Adventure: Limited Edition Quick Look". IGN. Retrieved October 24, 2014.
- IGN staff (July 15, 1999). "A Sit-down with Sonic Adventure: LE". IGN. Retrieved October 24, 2014.
- Casamassina, Matt. "Sonic Adventure DX: Director's Cut Review". IGN. Retrieved 16 October 2016.
- Nunneley, Stephany (2010-08-31). "Crackdown 2 Toy Box DLC, Sonic Adventure and more dated for XBLM". VG247. Retrieved 2011-08-11.
- Barnholt, Ray (2010-09-14). "Sonic Adventure Review for 360 from". 1UP.com. Retrieved 2011-08-11.
- "Sonic Adventure DX Upgrade".
- "Save 75% on Sonic Adventure DX on Steam".
- Fletcher, JC. "'Dreamcast Collection' for Xbox 360 and PS3 listed at GameStop". Engadget. Retrieved 5 August 2017.
- "Sonic Adventure for Dreamcast - GameRankings". GameRankings. Retrieved 15 December 2016.
- "GEIMIN.NET／週刊ファミ通クロスレビュープラチナ殿堂入りソフト一覧". Geimin.net. Retrieved April 15, 2013.
- "Sonic Adventure". Arcade (1): 23. December 1998.
- "Sega Unveils Sonic Adventure". Edge. October 1998. p. 6.
- Boutros, Daniel (2006-08-04). "Sonic Adventure". A Detailed Cross-Examination of Yesterday and Today's Best-Selling Platform Games. Gamasutra. Retrieved 2006-12-08.
- "US Platinum Videogame Chart". December 27, 2007. Retrieved April 20, 2013.
- Justice, Brandon (September 8, 1999). "Sonic Adventure Review". IGN. Retrieved September 17, 2009.
- "Sonic Adventure". Hyper. March 1999. p. 18.
- "SONIC: It's been a long time coming, but we've been very". Computer and Video Games (215): 60. October 1999.
- "Sonic Adventure". Computer and Video Games (209): 20. April 1999.
- "Sonic Adventure". Computer and Video Games (209): 12. March 1999.
- Cundy, Matt; Houghton, David; Irvine, Nathan; Towell, Justin (June 23, 2012). "Top 7... horrendously buggy games we loved anyway". GamesRadar. Retrieved May 1, 2014.
- Fahs, Travis (September 9, 2010). "IGN Presents the History of Dreamcast". IGN. Retrieved April 19, 2014.
- Cocke, Taylor (June 21, 2012). "Silver Lining: Sonic the Hedgehog and a history of disappointment". Joystiq. Retrieved April 19, 2014.
- Noble, McKinley. "The 20 Best Platformers: 1989 to 2009". GamePro. Archived from the original on January 28, 2010.
- DeMaria, Rusel, and Johnny L. Wilson (2004), High Score: The Illustrated History of Electronic Games, McGraw-Hill/Osborne, p. 312.
- "Sonic Adventure DX: Director's Cut for GameCube". GameRankings. Retrieved 3 December 2016.
- Varanini, Giancarlo. "Sonic Adventure DX Review". Gamespot. Retrieved 16 October 2016.
- Gies, Arthur (2010-09-14). "Sonic Adventure Review - Xbox 360 Review at IGN". Uk.xboxlive.ign.com. Retrieved 2011-08-11.
- Hartnett, Mike (September 23, 2010). "PSN Review – Sonic Adventure". PlayStation LifeStyle.
- Hogan, Patrick. "Saying Farewell to Three Decades of Weird Sonic the Hedgehog Comics". Kotaku. Retrieved 5 August 2017.
- Sonic Team Staff (1999). Sonic Adventure Instruction Manual. Sega. 51000.
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