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Sega Model 2 / 3 hacked romsets?

TechnicalMonkey said:
I figured that was the case. If you don't mind me asking, how much did you pay for a set of Decrypted FV2 ROMs? His web site doesn't seem to post this info (probably for good reason...?)
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25£ for the emailed rom binaries, but he had an option at 60£ that included EPROMs. In 2020.
 
ekorz said:
... in 2020.
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I have some follow up questions.
  1. Are the EPROM chips that I would need have a required access speed that I should use for them. I see lots of 100ns and 50ns out there (if I'm reading this right,) or perhaps some other speed?
  2. I know I'll need another 36 more 4MB chips and a 512KB chip on top of the 4x2MB chips I'll need. Will I need to scrutinize each Blank ROM's banking (2Mbx8 or 1Mbx16?)
  3. Are all of the blanks I need from ST Electronics? Any recommendations outside of this manufacturer?
  4. I have not looked at the filter boards of the other games, but will the one for VF3/tb on STEP 2? If not do games that probably use all sorts of exotic analog controls have pinouts for 4 directions and 3 action buttons per side?
  5. Any particular ebay seller more reputable for ICs than others? I don''t see these in stock at mouser or similar any more (at the time of this writing.)
Thank you for any and all help on this subject.
 
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TechnicalMonkey said:
I have some follow up questions.
  1. Are the EPROM chips that I would need have a required access speed that I should use for them. I see lots of 100ns and 50ns out there (if I'm reading this right,) or perhaps some other speed?
  2. I know I'll need another 36 more 4MB chips and a 512KB chip on top of the 4x2MB chips I'll need. Will I need to scrutinize each Blank ROM's banking (2Mbx8 or 1Mbx16?)
  3. Are all of the blanks I need from ST Electronics? Any recommendations outside of this manufacturer?
  4. I have not looked at the filter boards of the other games, but will the one for VF3/tb on STEP 2? If not do games that probably use all sorts of exotic analog controls have pinouts for 4 directions and 3 action buttons per side?
  5. Any particular ebay seller more reputable for ICs than others? I don''t see these in stock at mouser or similar any more (at the time of this writing.)
Thank you for any and all help on this subject.
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It’s all 27c322 100ns except for 4 half that size (I used flash for those but you can use 27c160) and one 27c4002. ST is fine. I like jk_parts eBay but it’s been a while.
https://imgur.com/a/3zFpcNP
Note the jumpers
Filter board shouldn’t matter but I photo’d mine too. I think they all contain all controls.
 
Tailsnic Retroworks said:
Does someone have Dead or Alive Model 2A decrypted binaries for avoiding the encryption board?
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99% of protected Model 2 or Model 3 games have no any encrypted game data, and DOA is not exception.
because Sega used protection chip in the most dumb stupid of all the possible ways - push to it a bit of encrypted data, read decrypted data and then compare with some hardcoded values or text. this kind of checks usually cracked changing only few bytes in game code.
iirc the only Model 3 game which really had some game data encrypted is Dirt Devils.

PS: btw same true for most of NAOMI cartridge games too.
 
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Hi! :)

I have a little rant :evil:and a real question: :saint:

Why are there ROM patches for SpikeOut: Digital Battle Online, but not for SpikeOut FINAL EDITION ? ||

Although the Final Edition is more interesting, is it a form of selfishness on the part of the community to reserve it for an elite group of users ? 8|

Same for Fighting Vipers 2, same principle. :thumbdown:

Same for Fighting Vipers 2 Special Version, supposedly there's only one model left in the world, the others have gone on vacation lol and it's never been Dumper? The joke
8|

4613ec_e279a9350f084fc59e77678e954719cb~mv2.gif


Come on, let's be serious, if this is true then I'm Batman with Supergirl's cape too. X/

I don't believe for a second that these two major titles haven't been patched in 10 or 15 years; I find it hard to believe, it's ridiculous. :whistling:

I have a very serious question: let's imagine there are ROM patches for SpikeOut: Digital Battle Online. :saint:

What if we asked ChatGPT to compare the patched and unpatched SpikeOut FINAL EDITION ROMs and wondered what the difference would be for the Final Edition.

I know it's far-fetched, but here goes. :D
 
MetalliC said:
99% of protected Model 2 or Model 3 games have no any encrypted game data, and DOA is not exception.
because Sega used protection chip in the most dumb stupid of all the possible ways - push to it a bit of encrypted data, read decrypted data and then compare with some hardcoded values or text. this kind of checks usually cracked changing only few bytes in game code.
iirc the only Model 3 game which really had some game data encrypted is Dirt Devils.

PS: btw same true for ~90% of NAOMI cartridge games too.
Click to expand...

It's surprising that most of Naomi's games are checked in this way. Is this the same for st-v?
 
chacal231077 said:
Hi! :)

I have a little rant :evil:and a real question: :saint:

Why are there ROM patches for SpikeOut: Digital Battle Online, but not for SpikeOut FINAL EDITION ? ||

Although the Final Edition is more interesting, is it a form of selfishness on the part of the community to reserve it for an elite group of users ? 8|

Same for Fighting Vipers 2, same principle. :thumbdown:

Same for Fighting Vipers 2 Special Version, supposedly there's only one model left in the world, the others have gone on vacation lol and it's never been Dumper? The joke
8|

4613ec_e279a9350f084fc59e77678e954719cb~mv2.gif


Come on, let's be serious, if this is true then I'm Batman with Supergirl's cape too. X/

I don't believe for a second that these two major titles haven't been patched in 10 or 15 years; I find it hard to believe, it's ridiculous. :whistling:

I have a very serious question: let's imagine there are ROM patches for SpikeOut: Digital Battle Online. :saint:

What if we asked ChatGPT to compare the patched and unpatched SpikeOut FINAL EDITION ROMs and wondered what the difference would be for the Final Edition.

I know it's far-fetched, but here goes. :D
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It looks like the Fighting Vipers 2 Special Edition screenshot is a direct capture, but it would be surprising if it were real. Does this board actually exist?
Also, it's really amazing that there is a SpikeOut: Digital Battle Online patched rom!
 
WangDrum said:
It looks like the Fighting Vipers 2 Special Edition screenshot is a direct capture, but it would be surprising if it were real. Does this board actually exist?
Also, it's really amazing that there is a SpikeOut: Digital Battle Online patched rom!
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If they exist, but they are paid, like the one for Fighting Vipers 2, and the others, and the others etc....

http://www.spolan.com/ssl-3/event/2000-08-13/index2.htm

https://arcadestriker.wixsite.com/arcadecollection/fighting-vipers-2-special-edition

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4613ec_98f8943debfb45ac98203aae5c1b94dc~mv2.jpg

4613ec_4698944e79f0445299f89358aba2941c~mv2.jpg


4613ec_7a8ea9d3728b48b3babc35b2b442c66f~mv2.jpg



4613ec_475fd373fe444e5f816499e6d06e9b5e~mv2.jpg
 
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WangDrum said:
A quick look shows that the decrypted data that has passed the security chip is stored in location 0x54B3B0 for verification. By bypassing this, it seems possible to run without an encryption board.
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Sorry again. How did you manage to obtain that location?
 
chacal231077 said:
I have a little rant :evil:and a real question: :saint:

Why are there ROM patches for SpikeOut: Digital Battle Online, but not for SpikeOut FINAL EDITION ? ||
Click to expand...
I'm not sure, but I may suggest it wasn't yet dumped at the moment when some smart person (Elsemi?) did all these M2/3 cracks.

chacal231077 said:
I have a very serious question: let's imagine there are ROM patches for SpikeOut: Digital Battle Online
Click to expand...
is it still not cracked? or it's cracked but not available for free? ;)
btw, is there a list of protected Model 2/3 games which is still not cracked at all?

WangDrum said:
It's surprising that most of Naomi's games are checked in this way. Is this the same for st-v?
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very few of ST-V games was protected, only 7 in total (not counting photo-booth machines), I think few of them had "not bad" protection implementation, iirc Tecmo World Cup had title screen image encrypted, and Decathlete was very well protected with most of game data encrypted. the rest was protected in Sega's usual dumb stupid way.
 
twistedsymphony said:
is there a blog post or some other information somewhere about these? I've heard people whispering that these cracks have happened but not yet seen any direct information about them.
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A few people make money with converts of specific games. That's because they aren't public. Only the public ones we all have are made by people with no lucrative intentions and thinking in the rest of the people.

So, I would call for those good people to help investigating this.

I'm a SEGA Model collector, almost all the catalogue. And my greatest fear is the scenario of any of my games having a encryption breakdown. There enter this hacked versions
 
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twistedsymphony said:
is there a blog post or some other information somewhere about these? I've heard people whispering that these cracks have happened but not yet seen any direct information about them.
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not sure if I've seen this kind of things in blog posts.
back in the days M2/M3 cracks/patches was documented in MAME and Supermodel emulators source code. when protection chips was emulated patches was removed too.
anyone interested who is not totally braindead was able to apply those patches to ROM dumps to use on real hardware...
 
MetalliC said:
not sure if I've seen this kind of things in blog posts.
back in the days M2/M3 cracks/patches was documented in MAME and Supermodel emulators source code. when protection chips was emulated patches was removed too.
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Thanks for the tip. I had no idea that SuperModel source code was available, nor that the MAME driver was complete enough to include this.

Found some good info in the super model and mame source

for anyone else interested:
https://github.com/trzy/Supermodel/blob/master/Src/Model3/Crypto.cpp
https://github.com/mamedev/mame/blo...f2df4106c605/src/mame/sega/315-5881_crypt.cpp
 
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