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Sonic the Hedgehog CD
Sonic CD 256px.jpg
European Instruction manual
Developer(s) Sonic Team
Publisher(s) Sega
Designer(s) Naoto Ōshima (Director)
Yasushi Yamaguchi (Special Stage Design)
Artist(s) Kazuyuki Hoshino (Character Design/Visual Designer/Special Stage Design)
Composer(s) Yukifumi Makino (Sound Director)
Naofumi Hataya
Masafumi Ogata
Spencer Nilsen
David Young
Platform(s) Sega CD, Windows, Mac OS X
Release date(s) Sega CD
JP September 23, 1993
EU October 1993
NA November 19, 1993
JP August 9, 1996
NA September 26, 1996
EU October 3, 1996
Genre(s) Platformer
Mode(s) Single player
Rating(s) ESRB: K-A (Windows version) (1995)
Media CD-ROM
System requirements Windows 95, 75 MHz Pentium CPU, SVGA, 2X CD-ROM, 15 MB hard disk space
Input methods Computer keyboard, Game controller

Sonic the Hedgehog CD (ソニック・ザ・ヘッジホッグCD?), or simply Sonic CD, is a platform game in the Sonic the Hedgehog series. It marked the first official appearance of the characters Metal Sonic and Amy Rose. It was released for the Sega CD/Mega CD in Japan on September 23, 1993, in Europe in October 1993, and finally for the Sega CD in North America on November 19, 1993. The game was ported to PC CD-ROM in 1996.



After passing a warp panel and attaining full speed for a short time, the player will see this short cutscene where Sonic travels through time.

Sonic's gameplay remains similar to that of Sonic the Hedgehog but with the addition of the Spin Dash and the Super Peel Out, which lets him zoom into a quick speed from a standing point.

The main innovation of this chapter in the Sonic series is the manner in which the player can travel to four different versions of each zone, each a different time period of the same location: Present, Past, Good Future and Bad Future. This is accomplished by speed posts scattered around the level, bearing the labels "Past", and "Future". After running through one of these posts, the player has to run at top speed for a few seconds without stopping, to travel into the respective time period. Because these teleports are relative, there are no "Past" signs in the Past, and no "Future" signs in the Future; that is, warping to the past in the future returns the player to the "present" time and vice versa. Each stage has three "Acts" (Although they are called "zones" in this game, see below), the third of which always takes place in the future.

The different time zones have slightly different layouts and sprite placements, as well as significant changes in the level music, art and palette. In addition, the robots within a level fall into a state of disrepair as time passes; in the present, some machines have become worn down while in the future all of them have. This affects the speed and attacking ability of the robots; some of them become completely ineffective, while others do not significantly change.

The appearance of the future changes depending on the actions of the player in the past. Hidden within the past of every level, there is a robot generating machine. If this is destroyed within a zone or all seven time stones are already collected, all of Dr. Robotnik's robots will be destroyed in the past. Should the player warp into the future, it is a "Good Future" in which there are no enemies and fewer hazards. If the machine is not destroyed, the warp will lead the player into the "Bad Future" in which Dr. Robotnik's robots run rampant, there are more hazards (though due to wear on some of the enemies, not always as many as in the past), and heavy pollution and crippled construction has harmed the level.

Sonic CD title screen

In addition to the robot generating machine, hidden within the past of each level is a machine which projects a hologram of Metal Sonic squashing one of that particular zone's animals underfoot. Destroying this machine causes animals to appear in the past and present levels. However the animals are always present in the Good Future, regardless of whether or not this machine was destroyed.

The third zone always takes place in the future and is mainly a short run up to the boss. Most boss battles are more elaborate than those in the other Sonic games, and typically require fewer hits than the usual 6 or 8. These boss battles, however, require more effort to actually hit Robotnik; one battle takes place on a makeshift pinball table and requires the player to use flippers to get up to Robotnik. Two battles do not involve hitting Robotnik to damage him; one takes place on a giant treadmill where the objective is to wear out Robotnik's machine by running on it, and the other is a race against Metal Sonic. The appearance of the third zone depends on the player's actions in the other two; if the player has achieved a Good Future in the other two zones (or all the time stones are collected), this zone will be a Good Future as well. However, if only one or neither stage has been made into a Good Future, the third zone will be a Bad Future. If all the third zones have Good Futures, the player is able to see the good ending but if the player gets all gems and all good futures, then a bonus ending is seen.

As in Sonic the Hedgehog, special stages can be accessed at the end of each zone if the player has collected, and is holding on to at least 50 rings, whereas in the Sonic the Hedgehog 2 checkpoints are used to enter special stages. It is because of this that there are speculations that Sonic CD began development before Sonic 2. A giant ring will float above the finishing sign which Sonic can jump through to enter the special stage. They consist of a three-dimensional, flat surface. To complete a stage and collect the Time Stone reward, the player must seek and destroy six purple UFOs flying around the stage, whilst avoiding spike traps and water (which causes time to decrease faster). If a UFO is destroyed, it gives a prize of either a super ring (have gold markings and give progressively larger bonuses starting with 20 rings when destroyed in series) or speed sneakers (have grey markings and temporarily boost speed). When the player is running out of time, an additional lighter-colored UFO with red markings will appear; destroying it will give the player more time. Collecting the seven time stones, only possible in the special stage, automatically guarantees that the player will reach the good ending even if one of the previously completed zones did not have a Good Future, and that all futures of upcoming zones will be good as well.

Sonic CD was the first Sonic game to use a backup save, using the internal Sega CD memory or a backup RAM cartridge. The game saves after the end of each third act (after which, a new level begins) and records the best times of the player in the time attack mode. Interestingly, this game also features an instant game over scenario. If the player leaves the game unpaused and doesn't move Sonic for three minutes, he'll say "I'm outta here!" and jump off the screen, instantly ending the game regardless of lives.


Amy from Sonic CD


For one month out of every year, a tiny planet appears in the skies above Never Lake. This mysterious "Little Planet" holds seven gems called Time Stones that can control the passage of time, bending the barriers between past and future. Intrigued by the unusual power of these stones, Dr. Robotnik descends upon Little Planet and hatches a new scheme to take it over.

Fortunately, Sonic the Hedgehog has caught wind of Robotnik's plot and resolves to beat him to the Time Stones at all costs. However, to complicate matters Dr. Robotnik has kidnapped the animals and the young lady hedgehog Amy Rose and uses them to bait Sonic and keep him off his trail. To that end, he deploys his most sophisticated and diabolical machine to date: a robot duplicate of the hedgehog hero called Metal Sonic, designed to match Sonic's every move and even match his own trademark speed.


Gameplay of Sonic CD, in the 5th Round, Wacky Workbench.


What would typically be called a "Zone" in other Sonic games, is called a "Round" in Sonic CD. Likewise, an "Act" now becomes a "Zone". In the level select screen, levels are listed according to round numbers. For example, what the level select refers to as "Round 1" is Palmtree Panic. There are seven rounds. The full list is:

  • Palmtree Panic
  • Collision Chaos
  • Tidal Tempest
  • Quartz Quadrant
  • Wacky Workbench
  • Stardust Speedway
  • Metallic Madness

"Round 2" is missing from the game; the level select instead skips directly to "Round 3" (Collision Chaos), suggesting a level was cut during development. This is even featured in the PC version, where files for each level are separated into folders - there are folders named "R1" and "R3", but no "R2". In total there are seven rounds to complete, each with three different zones. The first two zones in a round have four time periods each; Present, Past, Good Future and Bad Future, while the third is always set in the future and only has two, depending whether Sonic made a good or bad future. This means each round has 10 level designs, bringing the grand total to 70 different level designs.

The level design and atmosphere is significantly different in Sonic CD from other Sonic games. Sonic CD's levels and music are comparatively more colorful and psychedelic, giving it a slightly surreal, dream-like quality compared to other Sonic games.

Special stages

As in Sonic the Hedgehog 1, special stages can be accessed at the end of each zone if the player has collected, and is holding on to at least fifty rings. A giant ring will float above the finishing sign which Sonic can jump through to enter the special stage.

The special stage consists of a three-dimensional, flat surface. To complete a stage and collect the Time Stone reward, the player must seek and destroy six purple UFOs flying around the stage. The UFOs move around in an erratic fashion, which can make them hard to hit. If a UFO is destroyed, it gives a prize: a Ring Bonus for UFOs with yellow frames, and a temporary speed boost for ones with white frames. If the timer goes below 20 seconds, a special blue-and-red UFO appears in the center. Although this UFO doesn't count towards the actual UFO count (in other words, the number won't decrease), it awards the player an extra 30 seconds, allowing them more time.

In addition, there are many different types of stage environment. Springs bounce Sonic upward, bumpers bounce Sonic back if he tries to stray off-course, fans make Sonic hover for a short time, chopper tiles slow Sonic down and cause him to lose rings, and dash panels force him into different directions. Stepping into the water portions of the stage will cause Sonic to proceed slower and quickly lose time. In the Special Stage Time Attack, the water does not cause a time penalty.


After the release of Sonic the Hedgehog 1, Lead Programmer Yuji Naka had grown dissatisfied with the rigid corporate policies at Sega, so he moved to the United States to work with the Sega Technical Institute. Incidentally, a large number of the original design team of Sonic (already known as "Sonic Team") also left for the U.S., to help instruct the American developers. With half of Sonic Team and two of its most important creators present, the Sonic Team|Sega Technical Institute eventually got the job to develop Sonic the Hedgehog 2.

Meanwhile in Japan, Sonic the Hedgehog CD (or at this point, "CD Sonic" as it was first known [1]) was handled by a separate development team, headed by Sonic creator Naoto Ohshima. Initially, as revealed in interviews and magazine clippings,[2] Sonic CD, and Sonic the Hedgehog 2 for the Mega Drive/Genesis, Master System and Game Gear were supposed to be the same game. However, during development, Sonic CD evolved into a vastly different type of game. Eventually, the gameplay of Sonic the Hedgehog 2 would be favored for the future games, but this explains why the theme and handling of Sonic CD are different, as well as the use of most of the original Sonic the Hedgehog's sprites for the latter title. The time posts also had sprites similar to Knuckles' Chaotix. However, some vestiges of the original tie-in remain.

Sonic CD was released after Sonic the Hedgehog 2 but before Sonic the Hedgehog 3. Some fans think that the game's storyline (that is, Sonic's trip to the Little Planet in the present) either takes place before Sonic the Hedgehog 2 or after Sonic & Knuckles, due to the fact that Sonic the Hedgehog 3 takes place where Sonic the Hedgehog 2 leaves off. However, due to considerable delays and a few easter eggs it is apparent that Sonic CD was supposed to launch at the same time, if not before, Sonic the Hedgehog 2.


The Japanese and North American versions feature two different soundtracks, with the European release sharing the Japanese soundtrack. The Japanese soundtrack was composed by Naofumi Hataya & Masafumi Ogata, and featured songs by Keiko Utoku. The songs were entitled "Sonic - You Can Do Anything" (known also as "Toot Toot Sonic Warrior", composed by Masafumi Ogata) and "Cosmic Eternity - Believe in Yourself" (composed by Naofumi Hataya).

The boss music for the Japanese version was also noted for sampling the song "Work That Sucker To Death" by '70s American artists Xavier, Bootsy Collins, and George Clinton.

The North American version was delayed a few months to have a new soundtrack composed by Spencer Nilsen, who did other Sega CD soundtracks as well as some early Sega Saturn soundtracks. All the music (save for the "Past" tunes, which were in PCM audio rather than Red Book CD Audio) was replaced, and new themes were composed. The new theme was "Sonic Boom", performed by Pastiche (Sandy Cressman, Jenny Meltzer and Becky West). Both the opening and ending had similar lyrics but different instrumentation. This is credited as the "Special Edition for North America" soundtrack. The lyrics for the opening theme were found in the back of the game manual.

The intro and ending FMV sequences were slightly re-edited to fit in time with the respective music. Since then, every re-release of the game in North America and Europe (where its original release featured the Japanese score) exclusively boasts the North American soundtrack, including both the PC version and the one in Sonic Gems Collection (the latter having the Japanese soundtrack in Japan but with the slightly altered programming of the North American version's) as well as in the special features section of Sonic Mega Collection; the Japanese soundtrack has never made it to North America. However, it has surfaced in Sonic Screensaver and Sonic Jam and has several remixes in some 8-bit Sonic games.

This, rather infamously, resulted in controversy - GameFan, which had given the Japanese/European version a perfect 100% score, offered the North American release ratings in the 70% range,[3] and made clear that this was due to the soundtrack change alone. GameFan's editor, Dave Halverson, later called it "an atrocity which remains the biggest injustice in localization history: worse than taking the farting mama out of DJ Boy, or the fruity mid-boss out of Streets of Rage 3. The company line was that American consumers weren't ready for techno... Prodigy burst onto the rave scene in the early 1990s and achieved immense popularity worldwide, but the US needed elevator music for the first arranged Sonic."[4]

Nilsen would later state his view on the controversy: "They had all been playing the Japanese version for weeks or months before our version hit the streets, so it was like we replaced the music to Star Wars after the movie had been out for a while. From that perspective, I can't blame them."[5]

If the Sega CD version of Sonic CD is played on a standard CD player, one can listen to all the "Present" and "Future" stage music with each "track" having a different song. The "Past" stage music is PCM audio and can only be played through the game's sound test. However, the PC port includes the past soundtracks in the Red Book standard as well nearer to the end of the CD.

One of the last North American development versions of Sonic CD contained the Japanese soundtrack completely intact. Ultimately, the soundtrack was completely replaced.[6][7]

Notably, a remastered version of "Sonic Boom" was used as an unlockable music piece for use on a Sonic the Hedgehog-themed stage in Super Smash Bros. Brawl. This revision of the song is based on the opening movie version, but features slightly improved instrumentation as well as having been reconfigured to loop. This song is present even in the Japanese and PAL versions of the game.

The PC release of the game in 1996 utilized the North American soundtrack.

Most of the music from Sonic CD was released on a special edition album called Sonic The Hedgehog Boom. The album is now out of print and somewhat rare.

Palmtree Panic pressent (EU/JP) is an unlockable song in Mario & Sonic at the Olympic Winter Games and Sonic & Sega All-Stars Racing.[citation needed]


Reviews for Sonic CD were generally positive, with a consensus that it was the best game for the Sega Mega-CD. The game was praised for its innovative time-travel based gameplay, presentation and music. Despite this critical acclaim, however, the game failed to emulate the commercial success of other Sonic installments, due to the unpopularity of the Sega CD. Yet according to it sold 1.5 million copies worlwide, 1.02 million in the US alone, and 480,000 in the rest of the world including Japan.

Reviews of the PC version were less favorable, with reviewers complaining about its inferiority to the Mega CD version.[citation needed] The PC version also didn't work on computers running later Windows OS systems Windows XP, Windows Vista, and Windows 7; due to some missing files (However, it worked on Windows Me and Windows 2000 OS). However, a program called "Sonic CD PC Fix" solved those problems.[8]

Sonic CD was awarded Best Sega CD Game of 1993 by Electronic Gaming Monthly.[9] It was also listed at the #1 on the best Sonic game article on ScrewAttack's "Best and Worst Sonic games".[10]


Sonic CD was ported to PC CD-ROM in 1996, marking Sonic's debut on the PC under the Sega PC brand. This version was released in Japan on August 9, 1996, in the United States and Canada in August 26, 1996, and in Europe in October 3, 1996. A noteworthy change, the complete FMV animated intro and ending sequence was made available. The Japanese version of the game had its manual translated from the US version, and all versions had the US soundtrack, with the "Past" tunes converted to normal CD tracks.

While the DirectX version of Sonic CD for PC is the most common and the best-selling initial commercial game for Windows 95[citation needed], it is not the first version of Sonic CD for PC. The original version of Sonic CD for PC was powered using Dino libraries, an Intel-developed precursor to DirectX. This version of Sonic CD was never individually sold at retail, it was only sold with Packard Bell computers as a pre-installed game, and sold as double-packs along with other PC Sonic games. Upon the release of DirectX 3, Sega ported the Dino dependencies to DirectX calls and released Sonic CD in its DirectX form.

The PC port of Sonic CD is only playable on the older operating systems like Windows 95, Windows 98 and Windows Me. The DirectX version of game can still be played on Windows XP or Windows Vista via a fan-created patch called SonicCDFix. However this patch doesn't support the Dino-library-based edition of Sonic CD.[11]

In addition to the PC port, Sonic CD is part of the Nintendo GameCube (and, in Japan and Europe, PlayStation 2) compilation Sonic Gems Collection. This version is ported from the PC version with some enhancements regarding the game's frame rate and action speed (with no frame rate slow-down), however it also suffered from minor graphical errors such as scrambled backgrounds and the lack of colour in the water from Tidal Tempest. The soundtrack in this version depends on the region, though European versions of the game contain the American soundtrack (unlike previous European releases which featured the Japanese soundtrack). This version also included the highest quality versions of the animated intro and ending sequences.

In July 2009, a developer named Christian Whitehead created a proof-of-concept version of Sonic CD running on the iPod Touch. Developed using his Retro Engine, it is based on the original Sega CD version. Shortly after being shown the proof-of-concept, Sega asked the fans on their website which game should be made for the iPhone or iPod Touch, hinting an official version might be made[citation needed].

The game's story was also adapted in the British publication, Sonic the Comic.


External links

Strategy wiki

Up to date as of January 23, 2010

From StrategyWiki, the free strategy guide and walkthrough wiki

Sonic the Hedgehog CD
Box artwork for Sonic the Hedgehog CD.
Developer(s) Sega, Sonic Team
Publisher(s) Sega
Designer(s) Naoto Ohshima (director), Kazuyuki Hoshino, Takumi Miyake (Design), Matsuhide Mizoguchi (programming)
Release date(s)
 October, 1993
Genre(s) Platform
System(s) Sega CD, Windows
Mode(s) Single player
ESRB: Kids to Adults
VRC: General Audiences
System requirements (help)
CPU clock speed


Disk space


Optical drive speed


Preceded by Sonic the Hedgehog 2
Followed by Sonic the Hedgehog 3
Series Sonic the Hedgehog

Sonic CD (or Sonic the Hedgehog CD) is a game in the Sonic the Hedgehog series, for the ill-fated Sega CD system. This is a very unique game in the series, as it was developed at the same time as Sonic the Hedgehog 2. Sonic CD has several differences from most sonic games. The first and most obvious is that in this game, Sonic can time travel from the present to the Past and Future of each zone. By changing things in the past, the Future can either become good or bad. This game also marks the first appearance of Amy Rose and Metal Sonic.

Table of Contents

Getting Started
  • Palmtree Panic
  • Collision Chaos
  • Tidal Tempest
  • Quartz Quadrant
  • Wacky Workbench
  • Stardust Speedway
  • Metallic Madness


Up to date as of February 01, 2010

From Wikia Gaming, your source for walkthroughs, games, guides, and more!

Sonic CD

Developer(s) Sega
Publisher(s) Sega
Designer(s) Director:
Naoto Ōshima
Character Design:
Kazuyuki Hoshino
Release date Sega CD:
September 23, 1993 (JP)
November 19, 1993 (NA)
August 31, 1995 (NA)
Genre 2D Platformer
Mode(s) Single player
Age rating(s) VRC: GA
Sega CD
Platform(s) Sega CD
As Part of:
Sonic Gems Collection
Media Compact disc
Sega CD
Input Sega Genesis Controller
Playstation 2 Dualshock Controller
Gamecube Controller
Credits | Soundtrack | Codes | Walkthrough

Sonic CD is a game released for personal computers as well as for the Sega CD. It is also part of the Sonic Gems Collection for the Nintendo Gamecube.


Dr. Robotnik has taken over the Little Planet, captured Amy, and created Metal Sonic with the goal of collecting all the Time Stones to be able to manipulate time and conquer the world. It is up to Sonic to stop him, by rushing through levels set in different time periods, collecting Time Stones.


It is identical to the three main games of the Sonic The Hedgehog series on the Sega Genesis, in that the player must collect enough rings to enter into the bonus section in order to win one of the Time Stones. However, there is also the goal of destroying all the machines that will cause the future of all the zones Sonic travels through to become bad futures. To do this, Sonic must use the Past and Future gates and build up enough speed to travel through time to reach the different time periods and destroy the machines.


Sonic stub
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Stubs are articles that writers have begun work on, but are not yet complete enough to be considered finished articles.

Sonic series
Main series:
Sonic the HedgehogSonic the Hedgehog 2Sonic CDSonic the Hedgehog 3Sonic & KnucklesSonic CrackersSonic 3DSonic AdventureSonic DX Directors CutSonic Adventure 2Sonic HeroesShadow the HedgehogSonic the Hedgehog (2006)Sonic Unleashed
Handheld series
Sonic the Hedgehog · Sonic the Hedgehog 2 · Sonic Chaos · Sonic Triple Trouble · Sonic Blast · Sonic Labyrinth · Sonic Pocket Adventure · Sonic Advance · Sonic Advance 2 · Sonic Battle · Sonic Advance 3 · Sonic Rush · Sonic the Hedgehog Genesis · Sonic Rivals · Sonic Rush Adventure · Sonic Rivals 2 · Sonic Chronicles: The Dark Brotherhood
Sonic Classics · Sonic Jam · Sonic & Knuckles Collection · Sonic Mega Collection · Sonic Gems Collection
Sonic Spinball · Sonic Drift series · Mean Bean Machine · Tails Adventure · Tails' Skypatrol · Knuckles' Chaotix · Sonic the Fighters · Sonic R · Sonic Shuffle · Sonic Pinball Party · Sonic Riders · Sonic and the Secret Rings · Sonic Riders: Zero Gravity · Mario & Sonic at the Olympic Games · Mario & Sonic at the Olympic Winter Games · Sonic and the Black Knight

This article uses material from the "Sonic CD" article on the Gaming wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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