Sonic the Hedgehog 2 (beta 8)

From Sonic Retro

Sonic2 title.png
Sonic the Hedgehog 2 (beta 8)
Prerelease of: Sonic the Hedgehog 2
System: Sega Mega Drive
Build date: 1992-09-24
ROM size: 1 MB
Source: Sega ROM Archive CD-R disc
Found by: drx

Sonic the Hedgehog 2 Beta 8 is a prototype version of Sonic the Hedgehog 2 for the Sega Mega Drive. It is also known as S2BETA8.

This prototype was released by drx during the February 23rd, 2008 proto release. It is the last known prototype of Sonic 2 to be made before the final build was produced.


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Cheat codes

  • Level select code is the same as in the final, and the new level select screen is done. The debug code from the final doesn't work. The old codes also work.
  • Level Select code: Up, Down, Down, Down, Down, Up, highlight 1 player, then press A + Start. Using 19, 65, 9, 17 in the sound test works in this build as well.
  • Debug code: C, C, Up, Down, Down, Down, Down, Up, highlight 1 player, then press A + Start.

General Differences

  • The title screen is identical to the final, but "Options" is misspelled as "Option".
  • "Sonic and "Tails" in:" (or Sonic and Miles, depending on your region).
  • In Chemical Plant Zone Act 2, the huge shortcut with the three boxes that leads straight to the boss has two super rings and a life, while in the final it's two super rings and an invincibility.
  • In Aquatic Ruin Zone Act 1, there is an invincibility monitor and a ring monitor on top of the first loop that are not present in the final.
  • Hidden Palace Zone is removed.
  • The boss of Wing Fortress Zone only takes one hit to defeat.
  • The final boss in Death Egg Zone is closer to the entrance in this build. Sonic does not run past Robotnik after defeating the Giant Mech, as in previous builds.
  • Ending sequence and credits are implemented.


  • Super Sonic doesn't change back to normal Sonic when a level is clear, this causes the ring counter to still drain until it hits zero.


Download.svg Download Sonic the Hedgehog 2 (beta 8)
File: Sonic The Hedgehog 2 (Beta 8 - Sep 24, 1992, 19.27) ( (732 kB) (info)

External links



Sonic the Hedgehog 2 (16-bit)
Sonic2 title.png

Main page (KiS2|2013|3D|Ages)
Comparisons (KiS2) (2013)
Maps (KiS2) (2013)

Promotional material
Magazine articles
Video coverage

Hidden content (KiS2) (2013)
Bugs (KiS2) (2013)
Region coding
Hacking guide