Sonic the Hedgehog CD (prototype 712)

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Fast Facts on Sonic the Hedgehog CD (prototype 712)

Publisher: SEGA Developer: SEGA, Sonic Team System(s): Sega CD Genre: 2D Platform

Sonic CD Build 712 is a protoype for Sonic CD for the Sega CD. It is basically the US version of the game but with the original soundtrack that was used in the Japanese and European versions of the game. Debug is available for use with the second controller.

DOWNLOAD
Sonic the Hedgehog CD (prototype 712) is available here (16.98MB).

Various Differences

The RAM data screen is different.
Time attack screens are up to date but selecting to play a level in Time ATK locks up the game.
The Oil slicks are present but don't affect game play in The special stage.
The special stage demo found by waiting at the Title screen isn't a demo at all, it is fully controllable.
The starting point for all Special stages is on the far corner on the dirt that slows you down, instead of starting on the road.
The Time Monitor when placed with the Debug causes other monitors to stop blinking.
Blue Ring Monitor is now used like a ring shield, You can take 2-3 hits without losing rings.
Getting All timestones doesn't change all futures to good.

Cheat Codes

Level Select: On the title screen, press Start on the first controller and when NEW GAME or CONTINUE appears press on the second controller.
Sound Effects Test: On the title screen, press Start on the first controller and when NEW GAME or CONTINUE appears press on the second controller.
Debug Mode: In the middle game, press START on the second controller.