Sonic the Hedgehog
Developer(s)	Sonic Team
Publisher(s)	Sega
Designer(s)	Naoto Ohshima (character design), Hirokazu Yasuhara (game planner), Yuji Naka (programming)
Release date(s)	23 June 1991
Genre	Platform game
Mode(s)	Single player
Rating(s)	ESRB, ELSPA, BBFC: not rated
Platform(s)	Mega Drive/Genesis
Media	4-megabit cartridge
Input	Control pad

Sonic the Hedgehog Title Screen

Screenshot of Sonic The Hedgehog

Sonic the Hedgehog is the platform game that started off the career of Sonic the Hedgehog and Sonic Team. Sonic the Hedgehog box cover for the Sega Genesis. ... A video game developer is a software developer (a business or an individual) that creates computer or video games. ... Sonic Team is a computer and video game second-party developer established in 1988 as SEGA AM8. ... Video game publishers are companies that publish video games that they have either developed internally or have had developed by a video game developer. ... This article is about the video game company. ... A game designer is a person who designs games. ... Naoto Ohshima (大島 直人 Ōshima Naoto) is a Japanese national and former Sega employee who designed the characters of Sonic the Hedgehog and Doctor Eggman. ... Hirokazu Yasuhara is the stage designer of several of the early Sonic the Hedgehog videogames. ... Yuji Naka Yuji Naka (中 裕司 Naka YÅ«ji, born September 17, 1965), is a video game designer and head of Sonic Team, a group of Sega programmers/designers. ... This article needs to be cleaned up to conform to a higher standard of quality. ... June 23 is the 174th day of the year (175th in leap years) in the Gregorian Calendar, with 191 days remaining. ... 1991 is a common year starting on Tuesday of the Gregorian calendar. ... This is listing of computer and video game genres with a brief description and examples from each genre. ... A screenshot of the original Donkey Kong. ... In computer games and video games, single-player refers to the variant of a particular game where input from only one player is expected throughout the course of the gaming session. ... The Entertainment Software Rating Board (ESRB) is a self-regulatory organization that applies and enforces ratings, advertising guidelines, and online privacy principles for computer and video games in the United States. ... The Entertainment and Leisure Software Publishers Association (or ELSPA) is an organisation set up in 1989 by British software publishers. ... The British Board of Film Classification (BBFC) is the organisation responsible for film classification (see Motion picture rating systems and History of British Film Certificates) within the United Kingdom. ... Games, like most other forms of media, may be categorized into genres based on gameplay, atmosphere, and various other factors. ... Original Sega Mega Drive (PAL version) Sega Mega Drive (Japanese: メガドライブ Mega Doraibu) is a 16-bit video game console released by Sega in 1988. ... The Sega Genesis is a 16-bit video game console released by Sega in North America in 1989. ... The megabit is a unit of information storage, abbreviated Mbit or sometimes Mb. ... In a variety of electronic equipments, a cartridge (in video game terms, cart, game pack, or Game Pak) can be one method of programming different functionality, providing variable content, or a method by which consumables may be replenished. ... A control pad (also called a D-pad)is an input device on video game consoles, similar to the arrow keys on a computer keyboard. ... Sonic the Hedgehog title screen screenshot Screenshots are free to use under fair use. ... Sonic the Hedgehog title screen screenshot Screenshots are free to use under fair use. ... screenshot Sega Genesis Sonic_the_Hedgehog by me This is a screenshot of a copyrighted computer game or video game. ... screenshot Sega Genesis Sonic_the_Hedgehog by me This is a screenshot of a copyrighted computer game or video game. ... A screenshot of the original Donkey Kong. ... Wikiquote has a collection of quotations by or about: Sonic the Hedgehog For either of the video games, see Sonic The Hedgehog (Genesis) or Sonic the Hedgehog (Game Gear). ... Sonic Team is a computer and video game second-party developer established in 1988 as SEGA AM8. ...

It was released on June 23, 1991 in North America for the Sega Genesis. The European version was released later in June, 1991 for the Sega Mega Drive. The Japanese version was released on July 26, 1991 for the Mega Drive. The game was later re-released for the Sega Saturn in 1998 as part of Sonic Jam, for the Nintendo GameCube in 2002 as part of Sonic Mega Collection (including all three revisions), and on the PlayStation 2 and Xbox in 2004 as part of Sonic Mega Collection Plus. June 23 is the 174th day of the year (175th in leap years) in the Gregorian Calendar, with 191 days remaining. ... 1991 is a common year starting on Tuesday of the Gregorian calendar. ... World map showing location of North America A satellite composite image of North America North America is a continent in the northern hemisphere, bounded on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and on the west... The Sega Genesis is a 16-bit video game console released by Sega in North America in 1989. ... June is the sixth month of the year in the Gregorian Calendar and one of four with the length of 30 days. ... 1991 is a common year starting on Tuesday of the Gregorian calendar. ... Original Sega Mega Drive (PAL version) Sega Mega Drive (Japanese: メガドライブ Mega Doraibu) is a 16-bit video game console released by Sega in 1988. ... July 26 is the 207th day (208th in leap years) of the year in the Gregorian Calendar, with 158 days remaining. ... 1991 is a common year starting on Tuesday of the Gregorian calendar. ... The Sega Saturn (Japanese: セガサターン, Sega Saturn), a video game console of the 32-bit era, was released on November 22, 1994, in Japan and May 1995 in the United States; 170,000 machines were sold the first day of the Japanese launch. ... 1998 is a common year starting on Thursday of the Gregorian calendar, and was designated the International Year of the Ocean. ... Sonic Jam is a collection of all of the Sonic the Hedgehog series of games on the Sega Mega Drive (in PAL territories and Japan) or the Sega Genesis (in North America) that were created by Sonic Team. ... The Nintendo GameCube (Japanese: ゲームキューブ; originally code-named Dolphin during development; abbreviated as GCN) is Nintendos fourth home video game console, belonging to the 128-bit era; the same generation as Segas Dreamcast, Sonys PlayStation 2, and Microsofts Xbox. ... 2002 is a common year starting on Tuesday of the Gregorian calendar. ... Sonic Mega Collection, a game in the Sonic the Hedgehog series that recompiles some older Sega Mega Drive/Genesis titles for Nintendo GameCube, similar to Sonic Jam. ... The PlayStation 2 (PS2) (Japanese: プレイステーション2) is Sonys second video game console, after the PlayStation. ... The Xbox was Microsofts first game console, released on November 15, 2001. ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ... A screenshot of the updated main menu in Sonic Mega Collection Plus. ...

The first version lacked moving clouds, rippling water, and other minor details. The later Japanese version included the details, and the Japanese version 2.0 fixed the "spike bug."

This game was the first game to really propel the Genesis into mass popularity in North America. After it was released, it eventually supplanted Altered Beast as the bundled game with the console. Altered Beast (獣王記 Jūōki, literally Beast Kings Chronicle, in Japan) is a 1988 arcade game developed and manufactured by Sega. ...

Sonic the Hedgehog added the element of speed to the standard platform formula, and introduced other unique elements as well, such as the loops and springboards now permanently associated with the game series.

In the game, Sonic has to prevent Dr. Ivo "Eggman" Robotnik from collecting the Chaos Emeralds in an attempt to rule the world - canonically this is Earth, but for a lengthy period of time was commonly believed to be Mobius, due to outside sources using the name. Dr. Eggman. ... A Chaos Emerald is a mystic item that appears in the Sonic the Hedgehog video games, allowing the holder of all seven of them to transform into a super form (see Super Sonic). ... Earth, also known as the Earth, Terra, and (mostly in the 19th century) Tellus, is the third-closest planet to the Sun. ... Image Detailed Map of the planet Mobius made by Sonic RPG fangame groups Mobius is the planet that the Sonic the Hedgehog characters are from in the comic book series made by Archie Comics (United States) and Fleetway Comics (Europe), and in all three American cartoons, including the light-hearted...

The main villain, Doctor Eggman, has always been called that in the Japanese titles. However, in the European and American versions, his name is localized to Doctor Ivo Robotnik, and has stayed that way until Sonic Adventure, where it has been changed to Doctor Eggman. Dr. Eggman. ... Sonic Adventure is a video game created by Sonic Team and released on December 23, 1998 in Japan by Sega for the Sega Dreamcast. ...

There was also a version of Sonic the Hedgehog released for the Sega Master System and the Game Gear, which loosely followed the design of the Genesis version, although with some different zones and a level map. Screenshot Sonic the Hedgehog (Sega Master System) This version of Sonic the Hedgehog was released for the Sega Master System and Sega Game Gear and was re-released as part of Sonic Mega Collection Plus and Sonic Adventure DX. The Master System was thriving in Brazil at the time of... Sega Master System The Sega Master System (SMS for short) (Japanese: マスターシステム), is an 8-bit cartridge-based gaming console manufactured by Sega. ... The Sega Game Gear was Segas first portable gaming system. ...

Although its Genesis counterpart was extremely popular in the United States, Sonic the Hedgehog only received lukewarm responses in Japan. Sonic wouldn't catch on in that locale until Sonic Jam. Sonic Jam is a collection of all of the Sonic the Hedgehog series of games on the Sega Mega Drive (in PAL territories and Japan) or the Sega Genesis (in North America) that were created by Sonic Team. ...

Features

The game featured many novel elements which contributed to its popularity, and helped to promote the uptake of 16 bit consoles. (Redirected from 16-bit era) In the history of video games, the 16-bit era was the fourth generation of video game consoles. ... Console may be: An organ term for the area of an organ including the keys, stops, and foot pedals manipulated by the organist. ...

Sega promoted the game's use of "Blast Processing", supposedly a feature of the Sega Genesis which allowed it to draw sprites faster, but which in reality simply referred to the console's fast CPU clock rate. Blast Processing was a marketing term coined by Sega to advertise the fact that the main processor of the Sega Mega Drive/Genesis was over two times faster than the one on the Super Nintendo Entertainment System. ... The Sega Genesis is a 16-bit video game console released by Sega in North America in 1989. ... This article may be too technical for most readers to understand. ... This article needs to be cleaned up to conform to a higher standard of quality. ... The clock rate is the fundamental rate in cycles per second, measured in hertz, at which a computer performs its most basic operations such as adding two numbers or transferring a value from one processor register to another. ...

Sonic running

Sonic The Hedgehog (first) ingame screenshot Template:Game-acreenshot File links The following pages link to this file: Sonic the Hedgehog (Genesis) ... Sonic The Hedgehog (first) ingame screenshot Template:Game-acreenshot File links The following pages link to this file: Sonic the Hedgehog (Genesis) ...

Gameplay

The gameplay centered around elements that exploited the increased performance of the Genesis console. It is notable for being both simplistic and engaging for players. Gameplay includes all player experiences during the interaction with game systems, especially formal games. ... The Sega Genesis is a 16-bit video game console released by Sega in North America in 1989. ...

The game was arguably one of the fastest platformers that had yet been released. Sonic could run, jump and roll at significantly higher speeds than most platformers of the time. Unlike other platformers, the game's levels were designed to encourage the player to progress quickly. Springs, slopes, high falls and loop-de-loops were all available to both boost and challenge the player to reach high speeds. This was all accomplished without any slowdown in framerates, adding to the experience. Platform games, or platformers, are a very popular genre of video games that originated in the early 1980s. ... Frame rate, or frame frequency, is the measurement of how quickly an imaging device can produce unique consecutive images called frames. ...

Sonic's method of attack was also novel. As a hedgehog he could curl up into a ball, by either jumping or by rolling along the ground, a state in which he could damage enemies by simply colliding with them. This was a change from most other platform games, where a the player could only damage enemies by shooting, attacking or jumping on top of them. While rolling along the ground Sonic could roll down slopes, gaining speed as he did so. Most slopes were irregular, as opposed to the fixed angles seen in older titles, and the game had physics to match. Sonic's acceleration down a slope depended on its steepness; he could run around 360-degree loops, if travelling fast enough; and he suffered from drag under water. Genera Atelerix Erinaceus Hemiechinus Mesechinus A hedgehog is any of a wide variety of small spiny mammals of the Order Insectivora found through parts of Europe, Asia, Africa, and New Zealand. ... A screenshot of the original Donkey Kong. ... The willingness to question previously held truths and search for new answers resulted in a period of major scientific advancements, now known as the Scientific Revolution. ... For a solid object moving through a fluid or gas, drag is the sum of all the aerodynamic or hydrodynamic forces in the direction of the external fluid flow. ...

Trivial Note: Because of the game's focus on speed, one little known easter egg was completing Green Hill Zone 1 in 30 seconds or less. Doing so would net you 50,000 points. Total mastery of this stage was required, as you had to continually run from the time the stage began all the way to the end, knowing the exact route to take with no interruptions or diversions (like gathering rings). Since Sonic hadn't acquired the Spin Dash yet, this significantly reduced the margin of error allowed.

Sonic could collect rings to protect himself. As long as Sonic had at least one ring he would not die when injured. Instead he would lose all of his rings, which sprayed out and could be collected again. There were also shields available which allowed Sonic to be hit once without losing rings. However, neither shields nor rings could protect against instant death, brought on by crushing, drowning, running out of time (10 minutes) or falling off the map. If Sonic can collect 100 rings at a time he will get an extra life, and another if he can collect 200. This article is about the handheld defensive device. ...

Progress through the game was made easier by special checkpoints called lamp posts. When Sonic passed a lamp post, changing its colour, he could restart from that point - rather than the beginning of the level - when he next lost a life.

The games featured no passwords or game saves. The player had to start from the beginning every time they ran out of continues or reset the console. A regular password-inserting screen (from Gods). ... A saved game is a piece of digitally stored information about the progress of a player in a computer or video game. ... A continue screen for Marvel vs. ... The Nintendo GameCube is an example of a video game console. ...

Graphics

The game's 16-bit graphics were impressive for its time. Colours were lush and varied, taking advantage of the Sega Genesis' enhanced colour palette, and the sprites were richly animated. Flowers moved, rings spun, lights blinked, and water shimmered in the background. Destroying an enemy robot produced a puff of smoke as a small animal flew or hopped away from its prison. The Sega Genesis is a 16-bit video game console released by Sega in North America in 1989. ...

Sound and music

The game took full advantage of the onboard Zilog Z80 and Yamaha synthesizer sound chip. The game was filled with sound effects, with chimes, bops and beats following the player through the levels. Many sounds played on top of one another and most of the games sounds were unique and of higher quality than earlier 8-bit sounds. The Zilog Z80 is an 8-bit microprocessor designed and manufactured by Zilog from 1976 onwards. ... The Yamaha Corporation (ヤマハ株式会社) is a Japanese company with a large number of product areas. ... A classic FM synthesizer, the Yamaha DX7. ... Sound effects or audio effects are artificially created or enhanced sounds, or sound processes used to emphasize artistic or other content of movies, video games, music, or other media. ... 8-bit refers to the number of bits used in the data bus of a computer. ...

The music of the game affords special attention, with many fans proclaiming it to be the most memorable feature. The music used 8-bit stereo sound, and was very rich and detailed. The music for Green Hill Zone in particular is a very well recognised tune, by many fans of the series and by other gamers. Many MIDIs and remixes of this track, and of other tracks in the game, can be found online. Outrun (1986) is an arcade game with a famous soundtrack. ... In popular usage, stereo generally to dual-channel sound recording and sound reproduction – sound that contains data for more than one speaker simultaneously. ... A gamer is, in a general sense, one who plays games. ... Musical Instrument Digital Interface, or MIDI, is a system designed to transmit information between electronic musical instruments. ... A remix is an alternate mix of a song different from the original version, made using the techniques of audio editing. ...

The music was composed by Masato Nakamura, a member the popular J-Pop band Dreams Come True. Masato Nakamura (中村正人 Nakamura Masato, born October 1, 1958, Japan) is a Japanese musician who is a bassist of the band Dreams Come True. ... J-pop is an abbreviation of Japanese pop and refers to Japanese popular music. ... Dreams Come True is a Japanese band, though they sing in English too. ...

Zones

Green Hill Zone

A fan made enhanced image of Green Hill from Sonic the Hedgehog

The Green Hill Zone is the first (and most famous) zone in all of the Sonic the Hedgehog games, especially to the older gamers. Sonic the Hedgehog shipped with most Mega Drive/Genesis systems, and thus Green Hill Zone was the first Genesis experience for many people. It is a picturesque paradise with green forests and beautiful blue lakes and has brown checkered soil. Hazards include crumbling platforms and spikes. Green Hill Zone (Improved version) This is a screenshot of a copyrighted computer game or video game. ... Green Hill Zone (Improved version) This is a screenshot of a copyrighted computer game or video game. ... A dense growth of softwoods (a forest) in the Sierra Nevada Range of Northern California A forest (a. ... A lake is a body of water surrounded by land. ... For the heavy metal band see Soil (band) Soil is unconsolidated rock particle that lies on the surface of the earth, supporting the growth of plants, and serving as a habitat for animal life from microorganisms to small animals. ...

At the end of Act Three, Dr. Robotnik appears with a wrecking ball that swings back and forth trying to hit Sonic, who must avoid it by standing on some platforms.

This Zone is so famous in the Sonic series that it reappears in later games such as Sonic Battle and Sonic Adventure 2. Even Sonic Advance 3's Sunset Hill Zone has a remix of Green Hill Zone music. Videogame cover to Sonic Battle, featuring Sonic and Shadow. ... Sonic Adventure 2 is a videogame made by Sega for the Sega Dreamcast. ... Sonic Advance 3 is a platform game in the Sonic the Hedgehog series. ...

After completing the game, Sonic makes a brief return to Green Hill Zone for the ending sequence.

Marble Zone

A zone with ancient buildings made of marble and an underground castle with spiky chandeliers. There is a lot of lava that can harm Sonic in this level. You can destroy certain bricks for points. One collection of such bricks allows you to get over 30,000 points by smashing them all. The Alcázar of Segovia, Spain A castle (from the Latin castellum, diminutive of castra, a military camp, in turn the plural of castrum or watchpost), is a fort, a camp and the logical development of a fortified enclosure. ... Chandelier in the Vice Presidents Ceremonial Office in the White House A chandelier is a ceiling-mounted fixture with two or more arms bearing lights. ... Look up Lava, ‘A‘a, or Pāhoehoe in Wiktionary, the free dictionary Lava is molten rock that a volcano expels during an eruption. ...

At the end of Act three, Dr. Robotnik comes with a craft that can shoot fireballs into one of the two platforms Sonic can stand on, briefly setting it on fire. Sonic must hit Robotnik while his fireballs and the lava roll between the platforms.

Spring Yard Zone

An urban level with many springs and bumpers, resembling a pinball machine. Bumpers bounce Sonic while awarding ten points for hitting them. There are many secret areas in this zone. This zone's design inspired many similar stages in future Sonic games. Pinball is a type of coin-operated arcade game where a player attempts to score points by manipulating one or more metal balls on a playfield inside a glass case. ...

Act 2 has two Robotnik signs (ends).

At the end of Act three, Dr. Robotnik attacks with a spike-equipped craft that slowly removes the blocks Sonic stands on. The word spike The word spike can refer to: A sharp object like a nail: spiked shoes worn by athletes, which provide more traction. ...

Labyrinth Zone

A ruin-like maze zone, most of which is underwater. It features many spikes and water-driven contraptions. The greatest hazard of this zone is not the enemies or the traps, but the water. Sonic, being a hedgehog, is terrible at swimming. After staying underwater for a limited amount of time (18 seconds, with warning bells after 5, 10, and 15 seconds) a countdown starts (5 breaths/about 12 seconds), at the end of which Sonic drowns. Collecting air bubbles found in certain points resets the counter and prevents Sonic from drowning. This element has found its way into many more Sonic games. Act 2 of this zone is also notorious for a maze section in which the scenery repeats itself continuously until a hidden switch is found. Rocky landscape with ruins, by Nicolaes Berchem, ca. ... Swimming is the method by which humans (or other animals) move themselves through water in a method not involving simply walking on the bottom. ... Soap bubbles Bubble may refer to: a pocket of air or gas caught within a solid or liquid (see cavitation) a spherical liquid film (often of surfactant, occasionally of bubble gum) filled with air or gas, such as a soap bubble in economics, a bubble is a situation where speculation...

At the end of Act three, Dr. Robotnik does not attack Sonic. Instead, the hedgehog has to follow him through an ascending passage filled with poison-spitting statues and tridents that is soon after flooded with water, with no air bubbles in sight. To beat the level, Sonic must climb to the top without dying or drowning. The skull and crossbones symbol traditionally used to label a poisonous substance. ... Poseidon sculpture holding a trident A trident (from Latin tridens, tridentis, from tri, three, dens, tooth, dentes, teeth) is a three pronged staff. ...

Star Light Zone

A rather peaceful zone set in an urban environment at night, under the stars, and contains many loops. There are not many enemies here, at least not many which can be destroyed by Sonic. The most prominent foe is smart walking bombs that will explode a short while after Sonic approaches them. The greatest hazard is the featured giant drops into which Sonic can fall to his death. Fans, descending stairways and see-saws hanging in thin air make navigation harder.

At the end of Act three, Dr. Robotnik shoots spiked mines onto three see-saws. The mines detonate soon after, but Sonic can use the see-saws and the mines to either shoot the mines at Robotnik or use them to propel himself towards him. Act 2 of this zone is also Sonic's last chance to get a Chaos Emerald (see below).

Scrap Brain Zone

A trap-filled industrial level with many dangerous machinery such as saws, flame vents, disappearing and rotating platforms. At the end of Act two, Robotnik appears behind a force field and pushes a button which sends Sonic into Act three. This is a level similar to Labyrinth Zone and has no encounter with Dr. Robotnik. Instead, it leads directly to the Final Zone. In general physics, a force field is a vector field representing the gradient of a potential. ...

Final Zone

The final fight with Dr. Robotnik inside his private laboratory, and without a single ring to help, too. Robotnik will attack using special pods that can crush Sonic. Every time two out of four pods come down; one decoy, and one with Eggman in it. Sonic is supposed to attack pods with Robotnik in them a total of 8 times. Between each pod movement spark balls come from the ceiling towards Sonic, who must dodge them. After clearing this level, Robotnik flees, during which Sonic can hit him one last time, and after which the player is treated to the end sequence and credits.

Special Stages

Finish with at least 50 rings in the first or second act of a zone (except the Scrap Brain Zone) and jump through the big ring at the end to enter one of the six Special Stages. Each Special Stage rotates 360 degrees and has Sonic tumbling through it and into blocks on which he can stand. Certain blocks, when touched, can make the maze rotate faster, slower, or in the opposite direction. There is a Chaos Emerald hiding in each Special Stage. Sonic is supposed to collect it without touching a "Goal" block, which will end the stage. If he collects 50 or more Rings in a Special Stage, he will earn a Continue. As is the case in the rest of the game, collecting 100 rings will get an extra life. If all six Chaos Emeralds are collected, a better ending sequence will be viewed. A Chaos Emerald is a mystic item that appears in the Sonic the Hedgehog video games, allowing the holder of all seven of them to transform into a super form (see Super Sonic). ...

Pirated versions

The game was converted into a Famicom game called Somari by a group of software pirates in Hong Kong. The game, which is mostly playable, replaces Sonic with a character who appears to be Super Mario wearing Sonic's shoes. The copyright infringement of software is often called software piracy by those seeking to reduce its incidence. ... The Nintendo Entertainment System (U.S., Europe, and Australia) NES redirects here. ... Title screen of Somari Somari (portmanteau from Sonic and Mario) is a pirated hack of Segas flagship video game Sonic the Hedgehog, produced for the Nintendo Famicom and sold primarily around Hong Kong. ... The copyright infringement of software is often called software piracy by those seeking to reduce its incidence. ... For nearly two decades, Mario has been the official video game mascot for Nintendo. ...

A pirated version of Sonic the Hedgehog that was widely pirated in Asia has all of the SEGA logos removed. World map showing location of Asia Asia is the central and eastern part of Eurasia, defined by subtracting Europe from Eurasia. ... This article is about the video game company. ...

Sonic the Hedgehog with Sonic & Knuckles

According to several programers and hackers, the reason why Knuckles could not be placed into Sonic the Hedgehog like he was in Sonic the Hedgehog 2 was that the palette colors of Knuckles' sprite would have, in fact, completely altered the palette scheme of the entire game. Therefore, instead of a Knuckles in Sonic 1 feature, fans were treated to a full version of the Blue Spheres game. Wikiquote has a collection of quotations by or about: Sonic the Hedgehog For either of the video games, see Sonic The Hedgehog (Genesis) or Sonic the Hedgehog (Game Gear). ... Sonic the Hedgehog 2 can refer to. ... Blue Spheres is the secret easter egg game created by locking on Sonic & Knuckles to Sonic the Hedgehog. ...

Hacks of the game

Sonic The Hedgehog is frequently modified by ROM hackers, and its data addresses and code are almost completely understood through reverse engineering techniques. Three famous hacked versions have been floating around the Internet. Screenshot of Zelda Challenge: Outlands, a hack of The Legend of Zelda ROM hacking is the process of modifying a video game ROM image to alter the games graphics, dialogue, levels, gameplay, or other things. ... Reverse engineering (RE) is the process of taking something (a device, an electrical component, a software program, etc. ...

• One has Mighty the Armadillo in place of Sonic.
• Another is often called as Sonic 1 beta. It is a fake beta discovered in 1999. The real Sonic 1 prototype has not been found.
• Another version has Metal Sonic in place of Sonic.

This article needs to be wikified. ... In software engineering, development stage terminology expresses how the development of a piece of software has progressed and how much further development it may require. ... 1999 is a common year starting on Friday Anno Domini (or the Current Era), and was designated the International Year of Older Persons by the United Nations. ... Metal Sonic (also known as Hyper Metal Sonic and also Metallix amongst some fans in the UK and Metalla in Japan) is the robotic counterpart of video game character Sonic the Hedgehog. ...

External links

• Sonic the Hedgehog time attack records at The Sonic Center