Sega Mega CD ISO Hacks & Editors

[nighthawk]

well i did a little bit of it in sega 32x but the iso i couldnt figer out yet but if you can i will try work isnt the problem dont mind if i can figer out how to do it most of the stuff is not to hard till i got to figering out the iso ones hex just click on goto in the pulldown to the offset is the way i did sega 32x but as for iso it didnt work

[Tony H]

Before I start, let me say that I haven't tested this at all, so use this info at your own risk. I'm just going by the raw assembly that I see in the iso file.

Open up your Sonic CD iso file with any hex editor (I use Hex Workshop).

Search for every occurrence of: 0C39007F00FF0F20

If there is a 66xx right after that, then change the 66xx to 4E71. If there is a 67xx right after it, then change the 67xx to 60xx.

Examples: if you see 0C39007F00FF0F20 6610, then you would change it to 0C39007F00FF0F20 4E71. (I put the space right after the FF0F20 to make it easier to read.)

If you see 0C39007F00FF0F20 671E, then change it to 0C39007F00FF0F20 601E.

Just remember to do this to every occurrence of 66xx and 67xx, no matter what number the "xx" is.

There will be lots of matches you'll have to change. Make sure you save the changes when you exit the hex editor.

That's it.

One question... why don't you use an emulator and just enter a single PAR code? That would save you a LOT of time messing around with the hex editor. I think there are a few good emulators that support "FF" type RAM/PAR codes with Sega CD.

[nighthawk]

because i reather do it on a sega cd machien plus the sega cd i try the par sometimes it works sometimes it dont exept the wii gens plus but i reathere do the sega that is why i bought it and also i bought a sega 32x and a mega everdrive as well dont want to wast the money eh

[nighthawk]

ok thanks though i will tell ya how it works

[Tony H]

ok thanks though i will tell ya how it works

I was reading my post and just wanted to clarify something: When I said to "do this to every occurrence of 66xx and 67xx, no matter what number the "xx" is", I mean every occurrence after a "0C39007F00FF0F20".

[nighthawk]

had no luck it would be easyer if some one would make a patch for it for me sega cd is differnt i think then just find offset that i do in 32x in the sega cd it is just more then one place to do it

- - - Updated - - -

in sega 32x just goto offset and replace the code that is it

[wofidood]

Can you find codes for shining force cd?

Hello i don't know if this will help you out but i had the same problem with finding Shining Force Cd codes So i did some self taught Hexing which took forever but was fun and enlightening :>
I used A program called Hexecute RC7 3.0.0 and found this hope it help's future Shining Force fans like myself

The Spell's Bytes are scrunched together rate after the item location's following UP LEFT RIGHT DOWN
SPELL MOD #'s
0A=Egress,
0B=Blaze, 4B=Blaze2, 8B=Blaze3, CB=Blaze4, 1B=Katon1,
0C=Freeze, 4C=Freeze2, 8C=Freeze3, CC=Freeze4,
0D=Bolt, 4D=Bolt2, 8D=Bolt3, CD=Bolt4,
02=Detox, 42=Detox2, 04=Slow, 44=Slow2, 06=DSPL, 07=Muddle, 08=Desoul, 48=Desoul2, 09=Sleep,
0E=Hell, 4E=Hell2, 8E=Hell3
01=Arua1, 41=Arua2, 81=Arua3, C1=Arua4
00=Heal1, 40=Heal2, 80=Heal3, C0=Heal4,
03=Boost1, 43=Boost2

**The items in the bytes follow UP LEFT RIGHT DOWN** Being 2 Bytes long the second #'rs in the byte are the Item

ITEM MOD #'s
*1E=Middle Sword 9F=Long Sword 0A= Steele Sword 21=Broad Sword A2= Critical Sword A3=Samurai Sword 25=Dark Sword 27=Sword of Hajya A6=Sword of Light
99=Buster Sword "Book3" 9A=Counter Sword "Book3" 1F=Murasame "Book3" 20=Murasana "Book3" 7F=Iris Blade "Book3"

*30=Hand Axe B1=Middle Axe 32=Battle Axe 1C=Great Axe B3=Heat Axe B4=Axe of Atlas 16=Evil Axe
93=Large Axe "Book3" 22=Kamikaze Axe "Book3" 94=Earth Axe "Book3"

*1A=Iron Arrow BC=Steel Arrow A4= Robin's Arrow 1B=Great Shot 3D=Assult Shell 3E=Buster Shot
97=Hyper Cannon "Book3" 98=Shut Cannon "Book3"

*11=Leather Glove 92=Power Glove 93=Battle Glove 94=Iron Claw 15=Evil Claw
91=Misty Knuckle "Book3" 92=Giant Knuckle "Book3" A6=Golden Hummer "Book3" 2E=Chirrup Hummer "Book3" 23=Kizer Knuckle "Book3"
25=Work Glove "Book3"

*18=Bronze Rod 99=Iron Rod B8=Power Stick BA=Flail 36=Protect Staff 37=Holy Staff 39=Demon Rod B7=Holy Staff
95=Great Rod "Book3" 96=Mystery Staff "Book3"

*28=Bronze Lance A9=Steele Lance AE=Power Spear 2A=Chrome Lance 2C=Halberd AF=Valkyrie 2B=Evil Lance
9B=Javelin "Book3" 24=Venom Javelin "Book3" 1C=Chrome Lance "Book3"

*7F=Nothing 00=Herb 01=Healing seed 02=Antidote 03=Healing Rain 05=Powerful Wine 06=Protect Milk 07=Quick Chicken 08=Running Pimento 09=Cheerful Bread 27=Pegasus Wing "Book3" 28=Mythril "Book3" 2F=Teddy's Coat "Book3 for Gyan's sprite"

*8A= Power Ring 8B=Protect Ring 8C=Quick Ring 8D=Running Ring 8E=White Ring 10=Evil Ring

Hero Offset 00D52 byte 2= Class of Character
Level Starts at Offset D52 at byte 3 then Hp Current/Hp Max
then Mp Current/Mp Max then Att, Def, Agl, Mov
At Offset D54 byte 8 Is Exp byte 9 Rate after Exp is move type "50" is for fly "20" is for Knight

Enemies Moves Codeing ??"ENEMY SKILLS"??
7C on items=D BRTH
7C on Spells= Zombie2
AC on Spells= Yeesha3?? The Heck that Girl is cold

Well that's what i found hope it's Helpful and ok to post this here as i am new :>

[Saturn025]

Fixed these thanks to Tony:

Soul Star (U) (updated 10/31/16)

Infinite Lives: 1 instance
Search: 3E3C01004EB864DA2E78637E537863A6
Change: 3E3C01004EB864DA2E78637E53786004

Infinite Shields/Energy (rail stages): 1 instance
NOTE: Take a hit early and the shields (@ upper right) will auto fill after that but it takes about a minute. If playing without the Invulnerability hack, avoid more damage until they're full which will then keep Energy (@ upper left) from dropping below normal, save for a brief instance when hit.
Search: 0C78001462FA6F0852386325597862FA
Change: 0C78001462FA6F0852386325600462FA

Invulnerability: 1 instance
Search: 02780FFE626C4A38632C67045338632C
Change: 02780FFE626C4A38632C67046002632C

Infinite Homing Missiles (rail stages): 1 instance
Search: 003C6004610025FC6100F418537862E8
Change: 003C6004610025FC6100F41853786002

Infinite Bombs (rail/360° stages): 2 instances, change both
Search: 3D7C049400103D7C00850012537862EA
Change: 3D7C049400103D7C0085001253786002

Infinite Homing Missiles (360° stages): 1 instance
Search: 003C6004610020B86100EED4537862E8
Change: 003C6004610020B86100EED453786002

Disable Countdowns on 360° stages: 1 instance
Search: D0410242000FD0427263924031C162FE
Change: D0410242000FD0427263924031C16002

Infinite Rockets on pickup (rail stages): 1 instance
Search: 3D7C000100103D7C00860012537862EC
Change: 3D7C000100103D7C0086001253786002

Infinite Rockets (360° stages): 1 instance
Search: 00103D7C008600126100C9D2537862EC
Change: 00103D7C008600126100C9D253786002

Infinite Energy against death from above in Boss fights on 360° stages: 1 instance
NOTE: This hack and every variation of, work as intended but leave the Energy & Shield graphics messed up. Leaving it here for reference.
Search: E4006A027000B0386326670811C06326
Change: E4006A027000B0386326600211C06326

[Saturn025]

Hook (U) (Updated 10/31/16)

Stop Timer: 1 instance
Search: 003C66EA51F90005E24C53790005E24A
Change: 003C66EA51F90005E24C60020005E24A

Infinite Health: 1 instance (won't die from falling but can get stuck)
Search: E237610002946000004253390005D72B
Change: E237610002946000004260020005D72B

Infinite Lives: 1 instance
Search: B0390005D86E67024E7553390005E236
Change: B0390005D86E67024E7560020005E236

Infinite Fly on pickup: 1 instance
Search: 33FC00C00005D22C4E7553790005E240
Change: 33FC00C00005D22C4E7560020005E240

Invulnerability: 1 instance
NOTE: Useless. Gets stuck in 'hit' sequence and flies sloooowly across screen lol
Search: 13FC00010005D36B4E7552390005CDD5
Change: 13FC00010005D36B4E7560020005CDD5

[Saturn025]

Cliffhanger (U) (Updated 11/02/16)

Infinite Continue Time: 1 instance
Search: 662833FC00140007F17453790007F176
Change: 662833FC00140007600253790007F176

Infinite Continues: 1 instance
Search: 0007FFF0323C0001810133C00007FFF0
Change: 0007FFF0323C0001810160040007FFF0

Infinite Lives (side scrolling stages): 17 instances, change all
Search: 001C66046000FD4004390001000B00BC
Change: 001C66046000FD4060060001000B00BC

Infinite Health (side scrolling stages): 17 instances, change all
Search: 6C24BE39000B00B76C1C9F39000B00B7
Change: 6C24BE39000B00B76C1C6004000B00B7

Invulnerability (side scrolling stages): 17 instances, change all
Search: 04DA67140A30008000015339000B04DA
Change: 04DA67140A30008000016006000B04DA (Normal)
Change: 04DA67140A30008000016004000B04DA (Flickering)

Infinite Machine Gun Bullets: 17 instances, change all
Search: 009A4A39000B163D664A5339000B0559
Change: 009A4A39000B163D664A6004000B0559

Infinite Lives (Avalanche): 6 instances, change all
Search: 33FC00010007FFE6601853790007FFEE
Change: 33FC00010007FFE6601853796004FFEE

Skip Snowboarding Stage 1 if you die on it: 1 instance
Search: 662C4EB90006030A4A79000610CA670A
Change: 662C4EB90006030A4A79000610CA6004

Infinite Health Avalanche 1: 1 instance
Search: 0018237CFFFFD8F000685B79000610D0
Change: 0018237CFFFFD8F000686006000610D0

Infinite Health Avalanche 2: 1 instance
Search: 0018237CFFFFD8F000685B7900062D20
Change: 0018237CFFFFD8F00068600600062D20

Invulnerability Avalanche 1/2: 12 instances, change all
Search: 6F04532900104A2900116F0453290011
Change: 6F04532900104A2900116F0460020011

[Saturn025]

Novastorm

Full Shields = 32 bars

Infinite Lives: 25 instances
13D6536E13DA-41FA000A6100E714600000081B000000
Search: 13D6536E13DA
Change: 13D6536E6004
Change all

Infinite Shields 1: 25 instances
4880916A0092-3D6A009213D66100C7BA302A00926F00
Search: 4880916A0092
Change: 4880916A6004
Change all

Infinite Shields 2: 13 instances
484033400092-4E75133400000000000112DE00000002
Search: 4840334000924E751334
Change: 4840334060044E751334
Change all

Infinite Shields 3: 24 instances
484033400092-4E753029008448403029009248400480
Search: 4840334000924E753029008448403029
Change: 4840334060044E753029008448403029
Change all

Infinite Shields 4: 25 instances
488091690092-3D69009213D6610011C0303C669E6100
4880916900923D69009213D6610011C0303C669E6100
Search: 488091690092
Change: 488091696004
Change all

Infinite Shields 5: 1 instance
00029F6A0092-3D6A009213D66100C154302A00926F00
Search: 00029F6A0092
Change: 00029F6A6004

Infinite Bombs: 25 instances
4E75536E13DC-6100E530137C00C90021337C00000002
Search: 4E75536E13DC
Change: 4E75536E6004
Change all

[Saturn025]

Sonic CD: (these also work on the Sonic CD++ hack )

999 Rings After Taking A Hit (must have at least 1) (Edited to hopefully reflect proper ASM hacking)
Search: 4442444451CDFF4433FC000000FF1512
Change: 4442444451CDFF4433FC03E700FF1512
73 instances, change all

Infinite Lives (Edited to hopefully reflect proper ASM hacking)
Search: 00FF1510523900FF150E533900FF1508
Change: 00FF1510523900FF150E600400FF1508
73 instances, change all

Stop Time Increase (side scrolling stages): 73 instances, change all (Edited to hopefully reflect proper ASM hacking)
Search: 00093B3B670000E04A38F7CC66245221
Change: 00093B3B670000E06002F7CC66245221

Stop Countdown On Bonus Stages: 1 instance
Search: E319663C4A390003E318663453B88026
Change: E319663C4A390003E318600453B88026

Never Lose Rings In Bonus Stage: 1 instance
Search: 6100CEA6303880243200E24831C08024
Change: 6100CEA6303880243200600231C08024

Infinite Air: 11 instances, replace all (Edited to hopefully reflect proper ASM hacking)
Search: 0033003208E800070036537900FF150A
Change: 0033003208E800070036600400FF150A

Infinite Bubble Shield for the rest of the stage or death (once picked up): 52 instances, change all
Search: 000C000C4228002A08B9000000FF151E
Change: 000C000C4228002A6004000000FF151E

Infinite Invincibility (Stardust) for the rest of the stage or death (once picked up): 73 instances, change all
Search: 00FF151F673C4A680032673653680032
Change: 00FF151F673C4A680032600453680032

Infinite Speed Shoes for the rest of the stage or death (once picked up): 70 instances, change all
Search: 00FF1520674E4A680034674853680034
Change: 00FF1520674E4A680034674860020034

High Jump: 88 instances, change all
Search: 00680038
Change: 0068001E
NOTE: 38=56 & 1E=30. Lower # = higher jump. 01 sends Sonic high off the board, never to return lol

This one is superseded by the 999 rings one but leaving here in case the other is overkill lol (don't use together)
Never Lose Rings When Hit (must have at least 1) (Edited to hopefully reflect proper ASM hacking)
Search: 4442444451CDFF4433FC000000FF1512
Change: 4442444451CDFF446004000000FF1512
(or 6006 as shown here)
73 instances, change all

1 ring = 7: 73 instances, change all
Search: 527900FF1512
Replace with: 5E7900FF1512

1st ring = 999: (each additional ring subtracts 1 tho) 73 instances, change all
Search: 527900FF1512
Replace with: 5F7900FF1512

Invincibility: (keeper7's code, not mine)
NOTE: ONLY AGAINST ENEMIES.
670470ff4e75
REPLACE ALL INSTANCES FOR THIS ONE
600270ff4e75

[Saturn025]

Mary Shelley's Frankenstein (U)

Infinite Lives: 7 instances
0010536E01CE-3D7C006001CA6000000E3D7C000001CE
Search: 0010536E01CE
Change: 0010536E6004

Full health=60
No Damage from eels/acid: 10 instances
046E000A01CA-48E7FFFE3C3C001E3E3CFFFF303CFFFF
Search: 046E000A01CA
Change: 046E000A6004

No Damage from Mutant (orig): 1 instance
FF0000260801-3D6E01940190600001B83D6E0120015A
Search: FF0000260801
Change: FF0000266004

No Damage from Mutant (alt): 15 instances
3D6E0194018E-4CDF3FFF4E750C6E000A015C670003A0
Search: 3D6E0194018E
Change: 3D6E01946004
Change all

No Damage from Victor Frankenstein: 15 instances
3D6E0192018E-3D6E01940190600001B83D6E0120015A
Search: 3D6E0192018E
Change: 3D6E01926004
Change all

No Damage from Spiders: 3 instances
0006536E01CA-3028002A5240322800345241B0416D00
Search: 0006536E01CA
Change: 0006536E6004
Change all

[Saturn025]

Bram Stoker's Dracula

Infinite Lives: 1 instance
10C2536E10C4-6A00000C51EE0F6950EE0F6B4E7550EE
Search: 10C2536E10C4
Change: 10C2536E6002

Infinite Continues: 1 instance
4E75536E0034-3D7C0000003C4E7541FAFF6451EE0134
Search: 4E75536E0034
Change: 4E75536E6002

Infinite Health 1: 1 instance
00F8536E0F76-60000006526E0F763200E6490C410006
Search: 00F8536E0F76
Change: 00F8536E6002

Infinite Health 2: 1 instance
0040916E10C2-6A00002250EE0F693D7C300010C2536E
Search: 0040916E10C2
Change: 0040916E6002

[Saturn025]

Pitfall - The Mayan Adventure

Infinite Lives: 1 instance
5339000098B1-4A39000098B16700002A083900000000
Search: 5339000098B1
Change: 533900006004

Infinite Health: Change 1st of 2 instances
13C000009536-33FC0046000098B8BA7C00466B00000C
Search: 13C000009536
Change: 13C000006004

Invulnerability: 1 instance
98B8670000165379000098B8-3039000098B802400001670000D241F9
Search: 98B8670000165379000098B8
Change: 6004670000165379000098B8

Infinite Sacks: 1 instance
5339000098B2-2B7C000139F0000E1B7C000500084EF9
Search: 5339000098B2
Change: 533900006004

Infinite Fire Bombs: 1 instance
5339000098B4-2B7C00009B3C000E1B7C0004000813FC
Search: 5339000098B4
Change: 533900006004

Infinite Boomerangs: 1 instance
5339000098B3-23CD0000995670024EB900032D742B7C
Search: 5339000098B3
Change: 533900006004