Sonic the Hedgehog 2 CD

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Sonic the Hedgehog 2 CD
Publisher: Sega
System(s): Sega Mega-CD
Genre: Action

Sonic the Hedgehog 2 CD, also frequently referred to as Super Sonic, was a planned version of Sonic the Hedgehog 2 for the Sega Mega-CD.

The Sega Mega Drive version of Sonic the Hedgehog 2 and Sonic the Hedgehog CD are thought to have at one point been the same thing, likely separating at an early point in development when a disgruntled Yuji Naka and several members of the original Sonic Team migrated from Sega of Japan's offices in Tokyo to Sega of America (or specifically, the Sega Technical Institute) in California - travelling to where Sonic the Hedgehog was actually popular, as opposed to staying in Japan where the reception had been more lukewarm.

The entirety of the story is unclear, and many former developers seem unaware of the situation, however Sega spent a large part of 1992 promoting four different versions of Sonic 2 - the Sega Mega Drive, Sega Master System and Sega Game Gear ports, all of which shipped, and a Sega Mega-CD version which did not. Development on Sonic 2 CD is thought to have began with an aim of launching after the aforementioned versions, however the project was axed, potentially as a response to Japanese Sonic 2 sales, and became an entirely separate game, Sonic CD.

Slightly enhanced Mega-CD ports of Mega Drive games were not uncommon during the early 1990s, and Sonic 2 CD appears to have followed a similar pattern - the addition of CD quality audio, cutscenes between levels and the potential for more stages were all announced by various sources, though very little seems to have been demonstrated and may relate soley to the Japanese-led Sonic CD project.

An enhanced port of the original Sonic the Hedgehog was also announced around this time before being canned.


No gameplay of Sonic 2 CD was ever demonstrated, however during mid-1992 members of the gaming press appear to have been given access to some sort of unconventional prototype or rolling demo. The footage bears very little resemblence to what is found in Sonic 2 - it may have been intended for loading screens, or to act as a simple test for Mega-CD hardware.

Magazine articles

File Date Source Title and comments
Logo-pdf.svg "Sonic II"
Brief mention of a Mega-CD version of Sonic 2, scheduled for an Australian release in early 1993.
Logo-pdf.svg "Sega Interview"
After an interview with Yuji Naka, Sega Visions claims that a Sega Mega-CD version of Sonic the Hedgehog 2 is coming, with extra levels and "special bonus rounds" between zones.
Logo-pdf.svg "Preview: Sonic the Hedgehog 2 - Sonic II Sur Mega CD"
Logo-pdf.svg "Mega CD Sonic Update"
Short article describing the game as an enhanced version of Sonic the Hedgehog 2 called "Super Sonic".
Logo-pdf.svg "Top 100: Sonic the Hedgehog"
While Mega explains its decision to rate the original Sonic the Hedgehog as the third best Mega Drive game available in the UK, it briefly alludes to Sonic the Hedgehog 2 and a Mega-CD game, Super Sonic.
Logo-pdf.svg "Mega Mouth"
Later in the issue, Mega briefly predicts a Mega-CD port of Sonic 2, but is likely speculating at this point.
Logo-pdf.svg "CD ROM Showcase: Sonic the Hedgehog 2"
Logo-pdf.svg "Sonic the Hedgehog 2"
A brief mention at the back of this Sonic 2 preview, suggesting Sonic 2 CD exists.
Logo-pdf.svg "Super Sonic"
Mega reminds its readers of Super Sonic. The magazine pairs this with a screenshot of the original Sonic the Hedgehog, though does not otherwise suggest the two games are linked. The publication merely confirms "high quality" music is on the cards.
Logo-pdf.svg "Sonic Speaks!"
Short article about the game, still called "Super Sonic" at this point, and how voice acting will be included.
Logo-pdf.svg "Gutter Talk!: Sonic CD Slips Up"
UK magazine Sega Force reports that sales of Sonic the Hedgehog 2 in Japan have fallen below expectations, leading to a rethink in Sonic CD's development. No longer will it be an enhanced version of the Mega Drive game.
Logo-pdf.svg "Super Sonic"
Brief mention of the game, still referred to here as "Super Sonic", said to be released in Japan "any week now".

Dated Issues

Undated Issues

  • GamePlayers Sega Guide - Sega CD port confirmed.
  • SegaZone - Mega CD port of Sonic 2 with time travel mentioned.
  • MegaTech - This article confirms that the Sega CD Sonic game isn't a port of Sonic 2.

Sonic games for the following systems
Sega Mega Drive

Sega Mega-CD
Sega 32X
 1991  Sonic the Hedgehog | Sonic Eraser     1992  Sonic the Hedgehog 2     1993  Sonic the Hedgehog CD | Dr. Robotnik's Mean Bean Machine | Sonic Spinball     1994  Sonic the Hedgehog 3 | Sonic & Knuckles     1995  Chaotix | Sonic Classics     1996  Sonic 3D: Flickies' Island    
Unreleased Sonic the Hedgehog games
Sonic's Edusoft
Sega Master System
| Sonic the Hedgehog (home computers) | Sonic the Hedgehog
Sega Mega-CD
| Sonic the Hedgehog 2 CD
Sega Mega-CD
| SegaSonic Bros.
| Sister Sonic
Sega Mega-CD
| Treasure Tails
Sega Mega Drive
| Pre-May 1993 Sonic arcade games
| Sonic the Hedgehog 3 Limited Edition
Sega Mega Drive
| Sonic Jr.
Sega Pico
| Sonic Sports
Sega 32X
| Sonic Ride
| Sonic Saturn
Sega Saturn
| Sonic X: Chaos Emerald Chaos
Nintendo Game Boy Advance
| Sonic DS
Nintendo DS
| Sonic the Hedgehog Extreme
Microsoft Xbox
| Sonic Riders
Nintendo Game Boy Advance
| Sonic the Hedgehog: Awakening (Platform unknown) | Sonic Central
Google Android OS
Sonic X-treme incarnations
Untitled Isometric Game
Sega Mega Drive
| Sonic-16
Sega Mega Drive
| Sonic Mars
Sega 32X
| Sonic X-treme
Sega Saturn