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This page is rather stubbly and could use some expansion. Are you a bad enough dude to rescue this article?

This page covers the 1996 Windows 95 port of the game, not the (different) 1995 Windows 95 port of the game, and not the 2011 multiplatform remake. You can find that version's page here.

Sonic CD is a Windows 95 port of just your average Sonic the Hedgehog game on a CD...that's what you're told, anyway.

Secret Menu#

To do: Test the untested options.

Open the SONICCD.INI file, and add the following lines to it:

[Secret]
User=Debugger

This menu contains two additional menus: Stage and FUNC.

Stage#

This menu contains the following options:

R1
R3
R4
R5
R6
R7
R8
Special

RX refers to a set zone, though like the other versions of Sonic CD, R2 is skipped. After picking a Stage, another menu appears prompting you to pick the Past, Present, Good Future, or Bad Future version of the stage.

SPECIAL leads to a equally sized sub menu containing:

R1
R2
R3
R4
R5
R6
R7
R8(EGGMAN)

Unsurprisingly, selecting one takes you to the designated Special Stage. Clearing it returns you to the title screen.

FUNC#

Here's where the debugging stuff is. The menu contains the following options:

SpriteCmp
mapinit()

DEBUGFLAG
SPECIALDEBUG
TIMEWARP
GO_SPECIAL

GOODEND
Flags

FRAME

Timer (STAT)
TimerInit (STAT)
AVE_300Frame (STAT)

MMTimer

SndMemFree

RecStart (Demo)
RecEnd
RecPlay
RecRead
RecWrite

Demo

WAVEOPEN
WAVE CLOSE

CD Reset

SpriteCmp - Appears to do nothing.

mapinit() - Appears to do nothing.

DEBUGFLAG - Enables item placement mode.

SPECIALDEBUG - Appears to do nothing.

TIMEWARP - Not tested.

GO_SPECIAL - Takes you to your next Special Stage.

GOODEND - Displays a dialog containing your obtained Time Stones, the zones where you have gotten a Good Future, and what your next Special Stage is.

Flags - Displays a dialog containing:

generate_flag=00
time_flag==X

X will differ depending on the time frame you are in.

FRAME - Displays a sub menu containing two options: 60 and 30, though clicking on either does not seem to affect anything.

TIMER (STAT) - Appears to do nothing.

TimerInit (STAT) - Appears to do nothing.

AVE_300Frame (STAT) - Appears to do nothing.

MMTimer - Appears to do nothing.

SndMemFree - Appears to do nothing.

RecStart (Demo) - Not tested.

RecEnd - Not tested.

RecPlay - Appears to do nothing.

RecRead - Not tested.

RecWrite - Not tested.

Demo - Leads to a sub menu containing:

AVI
11A
SPE1
43C
SPE5
82A

None of these appear to do anything.

WAVEOPEN - Appears to only very briefly pause the game before resuming.

WAVEOPEN - Appears to do nothing.

CDReset - Appears to only mute the game music until the game is restarted.

Sega CD Cheats#

The debug menu from the Sega CD version, among all the other similar codes, is still present, but with A/B/C replaced with Space.

OMAKE#

Found in the OMAKE folder on the disc are BMP images of various icons, higher-res versions of some game sprites, and the title screen.