Welcome to Data Crystal's new home! Data Crystal is now part of the TCRF family (sort of).
The wiki has recently moved; please report any issues in Discord. Pardon the dust.

Sonic the Hedgehog (Genesis)

From Data Crystal
Jump to navigation Jump to search
So very stubbly.
This page is rather stubbly and could use some expansion.
Are you a bad enough dude to rescue this article?

Title Screen

Sonic the Hedgehog

Also known as: Baramdori Sonic (KR)
Developer: Sonic Team
Publishers: Sega (JP/US/EU/AU), Samsung (KR), Tec Toy (BR)
Platform: Genesis
Released in JP: July 26, 1991
Released in US: June 11, 1991[1]
Released in EU: June 23, 1991
Released in AU: 1991
Released in KR: 1991
Released in BR: September 1991

ROMIcon.png ROM map
RAMIcon.png RAM map
TextIcon.png Text table
Cactisprite.png TCRF
Sonic the Hedgehog
Company Sega
Header Yes
Bank Unknown
Interleaved Unknown
Type Unknown
ROM 512 KiB
Country JUE
ROM Speed Unknown
Video NTSC
Checksum 264A


Read about development information and materials for this game.
ROM map
Read about prototype versions of this game that have been released or dumped.
RAM map
Read about prerelease information and/or media for this game.
Text table


SonED2 is the primary Sonic the Hedgehog editor, working with Sonic 1 and Sonic 2; however, it requires that the game be prepared to produce a "split disassembly", where the level art, level layouts, object definitions etc. are split from the actual assembly code into separate data files. Work now goes into commenting the code such that it can be worked on.

The current most popular split disassembly for Sonic 1 is maintained by Hivebrain and uses SNASM68K for assembly. It (as well as SonED2 itself) can be downloaded from Hacking CulT (below).

Known Dumps

  • Sonic The Hedgehog (W) (REV00) [!]
  • Sonic The Hedgehog (W) (REV01) [!]
  • Sonic The Hedgehog (W) (REVXB)
  • Sonic The Hedgehog (MP)
  • Sonic The Hedgehog (W) (REV00) [t1]

External links

  • Sonic the Hedgehog hacks at Romhacking.net
  • S2B A site devoted to research on Sonic 2 Beta. It merged with Sonic Retro back in 2006.
  • Sonicology Contains many useful Sonic ROM hacking guides.
  • Sonic Stuff Research Group Has a Sonic hack archive, and will host your hack! Link Updated.
  • RetroHack A growing community of Hackers, mainly based on Sonic Hacks, but all other hacks are welcome! This website has been built into the Forums, for easy content management, which means the Whole Site is skinnable.
  • Hacking CulT A popular site for Sonic hacks.
  • Sonic CulT A Sonic fansite.
  • Sonic Stadium Rom Hacking Forum This site has a lot of members that post information, screenshots, and downloads for their Sonic hacks. There are some great Sonic hacks posted here, but unfortunately most of the hacks here are unfinished and of low quality.
  • Sonic retro This site has a lot of information on Rom hacks for Sega Genesis Sonic games. Hacks can be downloaded from this site, and the Forum has information regarding updated to many of these hacks. This site seems to host higher quality and more complete Sonic hacks than other sites.