S2B
S2B

THE Sonic 2 prototype reference site

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www.s2beta.com

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9.4 years
since unearthing of
prototype ROM


15.5 years
since release
of Sonic 2 on MegaDrive


1.7 years
since renaming to S2B


S2B/Prototypes Timeline

Prototypes within this group may not be in correct order. They may be even from one prototype.

  Sega Visions '92


M09

Nick Arcade


T01

Sonic 2 Proto v1.54


Our Proto

Mean Machines Sega VHS


T02

GamePro

M02
M05

M06


M20


M21

M22

M23

M24

Spanish Promotion VHS


T03

MegaForce '92


M14


M15


M16


M17

Sega Sonic Gold Gudie '93


M10


M11


M12


M13

Sonic 2 Manual


M08

Unknown French media


M07

M16
M18


M19

Sonic 2 Final


Final

 
                 
                 
TIME   TIME
EHZ snails - Y Y - - N - - - - N EHZ snails
CPZ loop full corners - - N N - N - - - - Y CPZ loop full corners
CPZ building - short tall tall - tall tall - - - tall CPZ building
CPZ crossbar tile - - silver silver - silver - - - - gold CPZ crossbar tile
Title cards - - N - - - - Y - - Y Title cards
Spindash dust - - N - Y - - - - - Y Spindash dust
Sonic sprites - P P F F F F F - - F Sonic sprites
Tails can fly - - N Y - Y Y - - - Y Tails can fly
Tails icon - - - - - Tails icon
2P option - N N - N N - Y Y - Y 2P option
Special Stage - - N - - - - - - Y Y Special Stage
Boss landing - - ê ê - - ê - - - í Boss landing
Boss defeated facing* - - L - - R - - - - L Boss defeated facing*
Boss flyaway facing** - - L - - R - - - - R Boss flyaway facing**
Boss explosion - - N - Y Y - - - - Y Boss explosion
Boss burnt - - N - - N - - - - Y Boss burnt

* When EHZ boss is facing left as it takes the final hit, which way does he face after defeated?
** When EHZ boss is facing left as it takes the final hit, which way does his aircraft face as he escapes to the right?
 

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