Sega Mega CD ISO Hacks & Editors

[Tony H]

Update...

I found the stuff that's for sale in the shop in Larpa. Still working on the prices. If I can't find the prices before too long, I'll show you how to hack it so the items you want are for sale in Larpa, and maybe the prices won't be too expensive. I hope to eventually have a "buy things for free" code that will work in all the shops, but that will take time.

[Tony H]

The only one I've found so far is how fast you level up. This should apply to all your characters. Do you want to change that? I can make it so you go all the way to level 30 on you next battle if you want, or anywhere inbetween.

I will keep looking for the other stuff you requested, but I didn't find it on my first search, so I may have to actually play the game to find that stuff (shops, MP, cost, etc). If that's the case, it may be awhile before I get that far into the game. I only have a save state at the very beginning of the game when Hiro comes out of the cave.

[hawkeyes]

Great I did not know those things could be changed,if that's the case could you change all spells mp cost to 2-3,make all items in shops cost 100 silver(the gold in this game),and put Heal Rings,Snake Rings, and Tri-Rings into the first shop with the above cost(the first shop is in the first big city in the game,Larpa,which is also where you get the 2nd playable character,if that helps at all)and again thanks for the help!

[Tony H]

OK, I found the area of the bin file where all of Ruby's empty item slots are. According to my calculations, she can hold a total of 72 items, and I'm pretty sure we can hack every single one of those.

Also, If there is a character that is going to join your party, or if you have a save state shortly before a current character joins you, I can probably make hacks to let them join your party with anything you want (any weapons, armor, magic, skills, items, etc). You won't need to restart the game for these codes, you'll just need to hack your bin file shortly before they join you. Let me know if you're interested.

Also, here are some other types of hacks I can *probably* make if you're interested.

-Change what items are for sale at different shops.

-Change how much you pay for items at shops (can make them free if you want).

-Can change how fast you level up.

-How much MP spells use

No guarantees on any of these, but I'm pretty sure they are do-able. Just keep in mind that I will be making all of these without actually playing the game. And again, these don't require you to restart the game.

[hawkeyes]

1)yes she is
2)hit > on the control pad hit give/use
3)ok I will see if that will help

[Tony H]

lol mine do not work at all('failed to allocate memory'error) and now my game cube resets when I even try to access saving/loading states option.as for ruby's extra items I would like to see:Battle Hammerx1,Razor Fan x1,Mystra Braceletx1,Heal Ringx3,Snake Ringx6,Tri-Ringx6,Blazing Robex2,Spiked Jacketx1,Angel Tearsx6,Dragonfly Wingx6,Silver Lightx5.
Also if you could simplify it like before that would be great,and as I said before there is no rush as I will not start over just yet.

1) Is Ruby the flying thing that starts the game with Hiro?

2) If that's who it is, how do I check which items she has? I've only tried to check Hiro's items. Is it the same process to check her items?

3) When I make the hack, I'll take a screen shot of my hex editor with the changed items in red. We'll see if that's any easier.

[hawkeyes]

lol mine do not work at all('failed to allocate memory'error) and now my game cube resets when I even try to access saving/loading states option.as for ruby's extra items I would like to see:Battle Hammerx1,Razor Fan x1,Mystra Braceletx1,Heal Ringx3,Snake Ringx6,Tri-Ringx6,Blazing Robex2,Spiked Jacketx1,Angel Tearsx6,Dragonfly Wingx6,Silver Lightx5.
Also if you could simplify it like before that would be great,and as I said before there is no rush as I will not start over just yet.

[Tony H]

thanks for the info by the way,would it be possible to hack ruby's held items?she is the flying red thing and she kind of serves as an item bag,you can move other players items to an from her and she has alot of item capacity.I think she starts with some herbs and starlight items,if that helps.Of course I would only ask you to find this when you have nothing better to do and I don't want to start a new game right now anyway.Another thing I would like to see is Magic Exp hacks;you need it to save the game AND level up spells,the game saving is most needed because my emulator freezes upon going into battles sometimes which means I sometimes lose 1-2 hours worth of playtime and my emulator does not like to make savestates on sega cd.

I will try to look into these. If Ruby is the flying thing that starts the game with Hiro, then that should be no problem hacking her items, and having her start with extra items. The other stuff may take more time.

I have the same problem as you when using SCD save states. Sometimes they work, sometimes they don't. Ugh.

[King Of Chaos]

This is an awesome thread, it's about time the Sega CD got some cheats love. A few years ago Steve Snake gave me a build of Kega Fusion without the block in place when attempting to use Sega CD cheats and thus I was able to create some cheats, including some for Sonic CD which can be found on this site. At the time he was unsure if he wanted to release Kega with SCD cheats enabled because of the apparent difficultly cheating on games that uses word RAM where as cheating on games, like Sonic CD, using Genesis RAM is pretty straightforward for PAR codes. I'm hopeful that maybe in the future he'll release a new Kega build with SCD cheat capabilities. However, if there's ever a proper cheat format conceived by the community for the Sega CD, that'd probably be enticement enough for emulator authors to support SCD cheats.

Now, these cheats for Sonic CD will only work in Genesis Plus GX and MD.emu (Android Genesis/SCD emulator) and ArtMoney if you convert them or download a cheat file which will then work on Kega, but I'd love to see these codes converted or recreated for ISO patches and Cheat Engine.

FF151F:0001 Invincibility
FF1589:0001 Enable debug mode
FF1507:0009 Infinite lives
FF1512:0032 Always have 50 rings
FF0F20:7F00 Have all 7 Time Stones/good futures
FF151E:0001 Always have the shield

Keep up the good work guys, I'll be watching this topic closely.

[hawkeyes]

thanks for the info by the way,would it be possible to hack ruby's held items?she is the flying red thing and she kind of serves as an item bag,you can move other players items to an from her and she has alot of item capacity.I think she starts with some herbs and starlight items,if that helps.Of course I would only ask you to find this when you have nothing better to do and I don't want to start a new game right now anyway.Another thing I would like to see is Magic Exp hacks;you need it to save the game AND level up spells,the game saving is most needed because my emulator freezes upon going into battles sometimes which means I sometimes lose 1-2 hours worth of playtime and my emulator does not like to make savestates on sega cd.

[Tony H]

As before, you must hack these into your bin file, then start a new game.

Lunar: Eternal Blue (SCD)

To hack Hiro's starting items...
With your hex editor, search for the first occurrence of 181818181A. Right after
this string, you'll see 6 bytes of 00 (12 zeros total). These are for the 6
empty item slots in Hiro's starting inventory. You can change any of those 6
bytes of zeros to start with any items you want. Just use the hex numbers from
this list: http://www.gamefaqs.com/segacd/58796...lue/faqs/36608


One more thing you can hack is Hiro's starting magic and sword skills, although I
haven't tested this yet...
With your hex editor, search for the first occurrence of 010000000D. The 01 is
the Boomerang magic that he normally starts with, and the 0D at the end is the
Poe Sword skill that he normally starts with. I'm pretty sure you can change
the 3 bytes of zeros inbetween them to whatever magic you want, and change the
3 bytes of zeros after the 0D to whatever sword skills you want. Use hex numbers
from here: http://www.gamefaqs.com/segacd/58796...lue/faqs/36608.
I'm not too familiar with the game, so not too sure what the difference is between
magic and skills.

[Tony H]

Really glad to hear it worked. Good job.

Here's some of the "cleaned up" instructions for hacking Hiro. Will post the rest later.

Lunar: Eternal Blue (SCD)


How to hack Hiro's starting HP, MP, weapon, and armor. Note that these
hacks will only work when you start a NEW game. They won't work on saved games.

To hack Hiro's starting HP and MP...
With your hex editor, search for the first occurrence of 00140014000F000F05.
The first 0014 is for Hiro's current HP, and the second 0014 is for Hiro's max
HP. Change them to whatever value you want (in hex). The first 000F is for
Hiro's current MP, and the second 000F is for Hiro's max MP. Change them to
whatever value you want (in hex). Not sure if the game has a limit on how high
your HP and MP can go, so be careful.


To hack Hiro's starting weapon and armor...
With your hex editor, search for the first occurrence of 3900710000. The 39 is
Hiro's normal starting weapon (Dagger), and the 71 is hiro's normal starting armor
(Peasant Clothes). Change those numbers to whatever weapon and armor you want to
start with using the list of weapons, armor, etc and matching hex numbers from
here: http://www.gamefaqs.com/segacd/58796...lue/faqs/36608

[hawkeyes]

It WORKED,WOO-HOO! Thank you SOOO much,now I can finally play this game with cheats.

[Tony H]

OK I have tried it again will probably post how well it works in the morning.I f it fails again I will give up for a while if only to give my poor pea-sized brain a rest,and thank you again for your help!

Don't worry Hawkeyes, we'll get it figured out.

[hawkeyes]

OK I have tried it again will probably post how well it works in the morning.I f it fails again I will give up for a while if only to give my poor pea-sized brain a rest,and thank you again for your help!