*NOTE* Because it involves hex editing, only the full install and the demo
version can be modified (can't modify the CD).
It would require 3 patches - the 3 EXEs have the changing points in different
In *any* version, change the first IDR_MENU1 to IDR_MENU2 and the first
IDR_MENU2 to IDR_MENU1. Every version has two of each - and only one set can
be changed, otherwise no effect will result. Note that you will not be able to
find the second set (the one you don't change) in any 32-bit version - this is
because the name is encoded in Unicode.
Sonic CD has two menu definitions as part of the EXE in the file, except only
one is accessed. Because of the way Windows works (resources), each menu has a
name. All that you're doing is changing which menu it accesses - you're
telling it to use IDR_MENU2 instead of IDR_MENU1. The IDR_MENU2 is changed to
IDR_MENU1 because you don't want two things pointing to the same place.
I think there's a method to *not* have to hex edit - there are indications of
a second code. The words User, Debugger, and Fujiwara (a programmer) are all
next to each other. The Fujiwara doesn't seem too strange except when you
consider the About credits are stored in the SONICDLG.DLL file. His name is
the only one there. I think you modify the SONIC.INI file to have a line like
Debugmode=Fujiwara, but this doesn't work. BTW if you hex-edit the file then
enter the code, you'll end up turning off debugmode (the menu sonic cd thinks
has debugging is now IDR_MENU1, the non-debugmode one).
How to use most of the stuff:
Stage This is fairly obvious. Choose a level. Note that there is no R2 - the
order of the numbers is 1345678. A = present, B = past, C = good future, D =
bad future. There is no A and B of the boss levels (as you can't get to them
If you warp to the Good Future using this during the Time Attack, the Bad
Future music will play, but you'll still be in the Good Future. One cool trick
is to warp to another (fast) level when making times for a long level, like
7-2. When you beat the level you warped to, the time will be recorded on the
level you chose at the Time Attack screen.
In the Demo version of sonic cd, you can only warp to R1 levels, special #1,
special #5, R4-3 good future, and R8-2 present. (These are the levels that
have demos, as well as the first 3 levels). BTW, making a demo of R8-2 is a
good idea - R8-2 has a loop that's easy to get stuck in, as well as the fact
that it's the longest level by far (2'49"06 is my best time). Helpful to
newbies who get there.
FUNC SpriteCmp - unknown, affects moving objects
mapinit - unknown, can cause game to exit
Debugflag - Turns off the main timer and score and replaces them with an
indicator of X and Y coordinates within the map file.
Specialdebug - Turns off the special stage timer only.
TimeWarp - (on by default) Disables time warping when unchecked. You can still
get the various symbols, but you cannot generate stars.
Go_Special - Go to the next unbeaten special stage immediately. When you win,
you go to the next level.
Goodend - Shows which things you've completed towards the Good Ending.
Flags - Displays several flags that don't seem to mean much.
Frame - Controls speed of game. This is good for those who have mastered the
game. 30 is normal, and 60 is *fast*. All aspects of the game except music and
sound effects are faster. The actual speed may be less than 2x, depending on
your computer. Note that the check mark always says 30, even though you might
be on 60.
Timer - unknown
TimerInit - unknown
AVE_300Frame - unknown, possibly affects AVI playing
MMTimer - unknown
SndMemFree - unknown
Rec* - controls demo recording/playing. Go to the level you want via Stage,
then hit RecStart to start recording the demo. Play the level. Hit recstop to
stop recording. RecPlay plays back the keystrokes, no matter where you are.
*DO NOT* timewarp during the demo. As such, I recommend you record demos
during Time Attack, or turn off Time Warps. To write your demo, use RecWrite
(duh). It will write it to one of the BIN files - one that corresponds to the
level you played on. There are only 5 (?) demos you can change - the default
ones. Go to a level that has a demo that came with it, and record your own.
When that demo is played, it will play yours instead. Note - you may have to
wait 5 seconds after hitting "recstart" to make sure your demo will play back
Demo - choose which demo is assigned to come up next. Useful to play back your
own demos easily.
WaveOpen - unknown
WaveClose - disables sound?
CDReset - disables music?
Some of the unknowns will cause sonic cd to exit.
Since the cheats for Sonic PC are very technical, here are the more NORMAL
To be done at the PRESS START screen: (A=Space/Joypad A; B=Joypad B;
Level Select = U, D, D, L, R, A
Sound Test = D, D, D, L, R, A
PCM 03 DA 01 = DJ Sonic
PCM 07 DA 07 = Secret extra bonus level
PCM 12 DA 25 = Weird Picture
PCM 04 DA 21 = Mature Sonic
PCM 11 DA 09 = Sonic at rest
PCM 12 DA 11 = Debug Mode:Start a NEW game and now:
A = Jump; Debug Mode: next object
B = Debug Mode/Normal Mode
C = Debug Mode: place objectDesigner's
High Scores = R, R, U, U, D, A
Time Attack Times = Beat the game in the least amount of time (hh:mm:ss):
37:27:57 = Play Music (read the Help File of Sonic CD)
30:21:05 = Special Stage select menu
25:46:12 = Pencil Test: view all movies!!