Sonic the Hedgehog

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Sonic the Hedgehog
Sonic The Hedgehog Title.PNG
Name Sonic the Hedgehog
Company {{{company}}}
Header {{{header}}}
Bank {{{bank}}}
Interleaved {{{interleaved}}}
SRAM {{{sram}}}
Type {{{type}}}
ROM {{{rom}}}
Country {{{country}}}
ROM Speed {{{romspeed}}}
Video {{{video}}}
Checksum {{{checksum}}}
CRC32 {{{crc32}}}
ROM map | RAM map | Text table | Notes | Tutorials

Template:Extensively Hacked


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).


There are many Sonic hacks spread all across the internet. For now, refer to the External Links to find Sonic Hacks.

Main article: List of Sonic the Hedgehog hacks

Sonic the Hedgehog Megamix is a hack by Tweaker that stands out above the rest. It can be found here:


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]
  • All Goodgen [p#]
  • All GoodGen [h#C]
  • All GoodGen [#b]
  • Sonic_The_Hedgehog_SMD-IND
  • Sonic The Hedgehog 1 (REV01) - Dumped by Qjimbo

External Links

  • S2B A site devoted to research on Sonic 2 Beta.
  • Sonicology Contains many useful Sonic ROM hacking guides.
  • Sonic Stuff Research Group Has a Sonic hack archive, and will host your hack! Link Updated.
  • 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.