Sonic Adventure

Sonic Adventure (ソニックアドベンチャー) is a video game created by Sonic Team and released on December 23, 1998 in Japan by Sega for the Sega Dreamcast and is the first game in the Sonic Adventure series. One of its development titles was Sonic RPG, (although the final game was an adventure game not a standard RPG). The final updated edition, known as Sonic Adventure International, was released on September 9, 1999 in North America, October 14, 1999 in Japan and Europe, October 18, 1999 in Belgium, the Netherlands, and Luxembourg, and December 3, 1999 in Australia. A director's cut version was released in 2003 as Sonic Adventure DX for the Nintendo GameCube and in 2004 for the PC CD-ROM. It has sold over 1 million copies in the United States alone, making it the top selling Dreamcast game. . It is the first ever Sonic game on a sixth generation console. Its sequel is Sonic Adventure 2.

Plot
Millenia ago, the Chaos and Master Emeralds were bestowed upon the planet, and kept at an altar just outside the territory of the Knuckles Clan, a society of echdinas. WHen the clan's last chief, Pachacamac, wanted to expand their territory, he turned to the emeralds to defeat the rival Nocturnus Clan. However, his greed caused the enraged Chaos, guardian of the emeralds, to destroy all but one of the echidnas. This one, Tikal, the daughter of Pachacamac, sealed herself away in the emerald with Chaos, and the magic caused the area surrounding the shrine to become Angel Island, the continent in the sky.

In the present day, Dr. Eggman learns of the legend surrounding Chaos. Believing it to be true, he seeks out the Master Emerald and shatters it, freeing Chaos in the process. Eggman's goal is to control Chaos, and use its destructive powers to collect the Chaos Emeralds and conquer the city and turn it into "Robotnik Land." To help him, he has created the E-series robots. When Sonic the Hedgehog learns of Eggman's plans, he and his friends spring in to action to stop Eggman and they start another journey for the Chaos Emeralds.

Characters
Unlike the previous action game in the series, Sonic 3D Blast, Sonic Adventure has six different characters to choose from, providing two more than the four (Sonic and Tails combo being the fourth) available in the earlier Sonic 3 & Knuckles.

Sonic the Hedgehog
The main hero of the game with supersonic speed. Sonic's story revolves around Dr. Eggman releasing Chaos from the Master Emerald. Sonic battles Eggman and Chaos in an effort to save Earth, as well as finding the Chaos Emeralds before they do. Sonic has the most stages of any character, and his levels involve high speed gameplay.

Miles "Tails" Prower
After Sonic rescues Tails from Emerald Coast after a "Tornado" prototype experiment goes wrong (and crashes), the latter sets out to help Sonic collect the Chaos Emeralds and stop Chaos. Most of his levels are abridged versions of Sonic's, which require him to reach the end of the level before Sonic (or Eggman) can.

Knuckles the Echidna
Knuckles is the guardian of the Master Emerald and one of the main protagonists after Sonic and Tails. The Master Emerald shatters when Eggman frees Chaos and Tikal's spirit from within it, causing Angel Island to fall out of the sky. Knuckles' goal is to reassemble the shards of the Master Emerald. His stages are enclosed areas where Knuckles must find shards of the Master Emerald. He can glide through the air and scale most walls.

Amy Rose
Amy Rose is walking through Station Square one day when a tiny blue Flicky falls from the sky and lands on her head. It is discovered that Dr. Eggman needed this Flicky (nicknamed "Birdie" by Amy) because of the Chaos Emerald in its pendant. Amy and Birdie must escape ZERO (otherwise known as ALPHA), one of Eggman's robots. Her primary weapon, the Piko Piko Hammer, returns (previously seen in Sonic the Fighters). Amy is considered to have the shortest story since she has fewer levels than the other characters.

Big the Cat
Big the Cat is a newcomer to the Sonic series. Big's best friend is a frog who became possessed by Chaos' tail, and swallows Big's "lucky charm", a Chaos Emerald, which causes him to mutate. The frog then runs off, and Big's story begins. His levels involve using his fishing pole to try and catch Froggy, although he can also choose to try and catch big fish, with score bonuses based on size.

E-102 Gamma
E-102 Gamma is one among a series of robots designed by Eggman designed to take orders without question. After an encounter with Amy, he suffers a malfunction and gains a "conscience." He then turns his aim to destroying his robotic brothers and freeing the animals trapped inside them. "Gamma" is one of the letters in the Greek alphabet. Gamma's levels are shooting levels in which the player races against the clock to get to the end and destroy the target (usually one of the other E-series robots). Players gain time depending on how enemies they shoot in a row/chain by using the lock on feature that Gamma has.

Super Sonic
Super Sonic is unlocked after the stories of the other characters have been completed. The story is a continuation of Sonic's story and brings all of the characters together to face Perfect Chaos. When in Super form, Sonic moves faster and attacks by gaining speed and ramming into Perfect Chaos.

Dr. Eggman
Dr. Ivo Robotnik, also known as Dr. Eggman because of his round body shape, has formulated a new plan to conquer the planet, this time not relying on his robots alone, but employing a strange liquid creature known only as Chaos (who ends up betraying him).

Note: This is the first game which the name "Eggman" was used in the West.

Chaos
Chaos is the guardian of the Chao, and is actually a mutated chao himself. He is apparently water or a plasma-like material and changes form after consuming a Chaos Emerald. After consuming all seven Chaos Emeralds, it turns into Perfect Chaos and starts destroying the city, until Super Sonic "defeats" it (in actuality, he neutralizes the evil within Chaos's heart, which was causing it to function within a state of blind rage).

Tikal the Echidna
A mysterious female echidna who appears whenever Sonic, Tails, Knuckles, Amy, E-102 Gamma and Big are sent back in time. She is trying to stop her father, Pachacamac, from stealing the Chaos Emeralds from the Master Emerald shrine. She appears mostly in the form of a pink ball of light called a Hint Orb.

Zero/Alpha
Zero is one of Eggman's Robots sent to find Amy's friend Birdie. He follows Amy wherever she goes hoping to capture her and the bird. At one point he succeeds but Amy is rescued by E-102 Gamma. Eventually Zero is defeated by Amy Rose on the Egg Carrier. Zero is the antagonist of Amy's story due to him trying to catch the bird.

Chao
Chao are featured in the flashbacks, said to be Chaos' children. They exist primarily in the Chao Gardens as a sort of intelligent virtual pet for the player to raise, an "evolution" of the A-life system from NiGHTS into Dreams... Chao can be taken with the player by downloading the minigame Chao Adventure to his VMU, or in the GameCube version, by downloading the Chao to a Game Boy Advance.

E-100 series
Dr. Eggman's E-100 Series series of robots play a large role in Gamma's story, as he is one of them, and is out to destroy or "save" the others. All of them have letters of the Greek alphabet as part of their name.
 * E-100 "Zero" (Description above). Note that E-101 Beta is the first in the E-100 series in this game. The anime, Sonic X, later established Zero's model number as "E-100" (thus moving E-101 to second in the series, mildly contradicting Sonic Adventure). Note, all the E-100 Series are named after letters in the Greek Alphabet, Therefore due to being described E-100, he is given the name Alpha as well as Zero, due to Beta being the second letter in Greek Alphabet, making Zero/Alpha a letter before him due to being E-100.
 * E-101 Beta is a black robot with two gun arms. He is the first boss in E-102 Gamma's side of the story, and is later upgraded into E-101 Beta mkII, who is Gamma's fifth and final boss. Beta is the antagonist of Gamma's story.
 * E-103 Delta is a blue robot who is Gamma's second boss, waiting at the end of Windy Valley.
 * E-104 Epsilon is an orange robot who is the third boss of Gamma's side of the story and is fought at the end of Red Mountain.
 * E-105 Zeta is a purple robot who is Gamma's fourth boss and is located at the end of Hot Shelter. While at first humanoid, Zeta is altered into a cylinder-like form with several turrets.

NiGHTS
NiGHTS makes a cameo in the Casinopolis stage where there is a pinball stage based on the NiGHTS series.

Story structure
The story is told through the perspective of the character you choose to play as and as a result the stories tend to diverge at certain points based on the character arc. It is interesting to note that the story takes on a certain Rashomon type structure in terms of dialogue and certain events when more than one of the playable characters is present in a scene. For example, each character has their viewpoint of a certain scene, so the dialogue between versions tends to be different. This perspective also justifies the different outcomes of certain encounters, for example, when Sonic faces E-102 Gamma on the Egg Carrier, through Sonic's perspective Sonic is about to destroy Gamma, through Tails' perspective Tails is about to destroy Gamma and through Gamma's perspective, Gamma is about to kill Sonic.

Gameplay
The game is divided up into two stages: Action Stages, and Adventure Fields. The division of Action Stages and Adventure Fields was a serious departure from all previous Sonic games.

Action Stages
Action Stages are basically playable levels. This is the only type of area where Sonic or any of his companions will encounter enemies (most boss battles appear to take place in the Adventure Fields, but they are actually in Action Stages designed to look like the Fields). There are eleven Action Stages, accessible by different characters. However, unlike previous Sonic games, Action Stages are not made up of Zones and Acts. Instead, the game plays more like each Adventure Field is a Zone and the Action Stages are the Acts in the Zone. The Action Stages have separate areas that could be considered "Acts", but they are not separate levels, as in previous games.

Adventure Fields
Adventure Fields are non-linear game stages, generally designed for (light) puzzle solving, exploration, and plot advancement. They contain very few items (enemies, rings, etc.). Every Adventure Field links to the other two Fields and a Chao Garden. They also have four Emblems each. They are each packed with various powerups for different characters.

There are three Adventure Fields:


 * Station Square: a large, metropolitan city, and is the location of Sonic's first fight with Chaos. Eggman plans to destroy it and construct "Robotnikland" on its ruins.


 * Mystic Ruins: a large mountainous area and the largest Adventure Field in the game, containing the (crashed) Angel Island. Deep in the jungle, a Ziggurat can be found. It also has a base home to Eggman.


 * Egg Carrier: Eggman's massive flying airship. This is the Adventure Field where most characters fight their final bosses (except Sonic and Tails). The Egg Carrier has 2 layouts and multiple transport devices unique to this field.

Reception
The reception at the time of release was overwhelmingly positive, including reviews from GameSpot and GameSpy being above 90%. The current Game Rankings average ranking is 88%. It became one of the few Sega All Stars games. In Japan, it received an excellent 38/40 from Famitsu. Similar to its sequel, however, the later-released GameCube port was criticized by many of the same sources who praised the Dreamcast version, although in this case, the Directors Cut reportedly didn't play as well as the original version did. Sonic Adventure DX: Director's Cut averaged a 63% at Game Rankings.

Dreamcast versions
Sonic Adventure

The original game released in 1998.

Sonic Adventure: Limited Edition

Exactly the same as the above version, except without the Internet.

Sonic Adventure International

Shortly after the U.S. launch of the Dreamcast, Sonic Team released Sonic Adventure International. This was the same game, but with additional features that provided a more complete experience:


 * The complete English voice track and the complete Japanese voice track were included.
 * A new option was added to the Options screen, giving the user the choice of text in five different languages: English, Japanese, French, Spanish, and German.
 * A few glitches were fixed.

== Sonic Adventure DX: Director's Cut == Sonic Adventure DX: Director's Cut (ソニックアドベンチャー デラシクス), is a platform game for the GameCube and PC.

The game was released as an enhanced port of the original Sonic Adventure for the Dreamcast, with several additional features added. The PC version was at first released only in Japan and Europe, but later saw a limited North American release. Sonic Adventure DX includes a mission mode, which included 60 missions to complete throughout the adventure fields and action stages. It also contains a minigame collection, which is comprised of twelve Game Gear games featuring Sonic and friends.

Reviews were generally less positive than those of its Sega Dreamcast predecessor, scoring more than 20% lower than the original release.

Unlockable games
The game features many unlockable games previously available on the Game Gear. If the start button of the second controller is pressed, the game screen will split, and two games will play at the same time. Additionally, Gear-to-Gear cable emulation is present, enabling the games that have two-player modes to be played if both players access the proper options within the game. These games were to be included in the Dreamcast version, but were scrapped due to time constraints. The same goes for the reintroduced feature of being able to play as Metal Sonic. A new Game Gear game is unlocked for every 20 Emblems the player gets, up until 100, then every 10 after that, or by completing 20 more of the 60 missions.

Games unlockable (in order):
 * 1) Sonic the Hedgehog
 * 2) Sonic Drift
 * 3) Sonic Chaos
 * 4) Sonic Labyrinth
 * 5) Sonic the Hedgehog 2
 * 6) ''Sonic Spinball
 * 7) Dr. Robotnik's Mean Bean Machine
 * 8) Sonic Triple Trouble
 * 9) Sonic Drift 2
 * 10) Tails' Skypatrol
 * 11) Sonic Blast
 * 12) Tails Adventure

Changes over the original Sonic Adventure
Sonic Adventure DX: Director's Cut includes everything that was added to the original version of the game as well as several additions/changes. They include:


 * Enhanced graphics: The main characters were re-created with higher polygon counts, resulting in smoother models. Shader technology was also implemented for effects like rippling water (shader effects are not present in the PC version, however).
 * The original 60 frame/s frame rate was restored. Unfortunately, due to the unstable nature of the Sonic Adventure engine, the game frequently skips frames, usually in an uneven pattern (causing noticeable choppiness), even in places where few objects are displayed, and/or where the Dreamcast version did not slow down (however, some effects that caused slowdown before do not affect the frame rate in the GameCube version). Cutscenes now run at a lower frame rate, but this seems to have been intended, for cinematic purposes.
 * Some sound effects, such as when collecting rings and emblems, are lower in pitch, and the losing rings sound effect is higher in pitch.
 * A Camera option was added to the pause menu, allowing the user to select either the original Auto-Camera, the newly added Free Camera; which is usually closer to the character, or the player controlled camera which moves with the C-Stick.
 * Changes (mostly minor) were made within the levels themselves in an effort to help solve some of the game's problems concerning collision detection. However, many glitches were not fixed, and various ones were, and some new ones were actually added. Some have to do with inconsistency in the port (for example, some windows still reflect the original Dreamcast graphics).
 * The Internet connection feature was removed. Some of the downloadable content from the Dreamcast version was included with the GameCube port.
 * Many changes to the Chao System were made, such as more interaction with the Chao, the ability to see their stats, as well as changes to the Chaos´ appearance. The Chao Adventure VMU minigame was removed (instead replaced with a Game Boy Advance connection feature). The Chao System is overall very similar to the Sonic Adventure 2: Battle Chao System.
 * 60 Missions were added for an all-new Mission Mode, which task the player with completing certain goals within the Adventure Fields and Action Stages for Emblems, similar to the Mission Mode found in Sonic Jam ' s three-dimensional Sonic World.
 * Metal Sonic becomes a playable character in Trial mode, as a reward for collecting all the Emblems.
 * Cream the Rabbit makes several cameo appearances during the main game and Mission Mode to guide player for example finding the "Ice Stone" after Casinopolis Action Stage and when E-102 Gamma first goes to Station Square.
 * As mentioned above, a Mini Game Collection mode was added allowing access to 12 Sega Game Gear games. This is the first time Sonic Drift and Tails' Skypatrol were released in the US and Europe.
 * The ability to skip cutscenes by pushing Start was added.
 * A map, found on the pause menu while in Adventure Fields, was added.
 * The train used to transport from Station Square to Mystic Ruins is now blue instead of red as in the Dreamcast version.
 * Some voice effects were changed like when Tails begins to fly or when Amy swings her hammer.