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So can Naomi Games like MvC2 be hacked?

for what ever reason i am not having any luck with the EPR-23085A netboot version. the game boots fine and plays until i try to access the game configuration. then it freezes up. am i missing something. as anyone had any success with net boot versions? thanks.
 
MetalliC said:
one more patch for Marvel vs Capcom 2:
enable Dreamcast controller and VMU support when run with any region BIOS
may be applied to most common hacked binary, or "unlocked" or original EPR-23085A.ic11
Code: 
offset   old new
003C3359: 89 A0
003C3496: 03 09
003C3497: 8B 00
note: as usual, VM kit should be enabled in game assignments first
Click to expand...


rocket said:
for what ever reason i am not having any luck with the EPR-23085A netboot version. the game boots fine and plays until i try to access the game configuration. then it freezes up. am i missing something. as anyone had any success with net boot versions? thanks.
Click to expand...
I have the same issue, I try to access the Game configuration menu and it locks up. I am using the "MarvelVsCapcom2_unlocked.7z" rom version as well as a Multibios set to USA mode.
 
muckyfingers said:
I have the same issue, I try to access the Game configuration menu and it locks up. I am using the "MarvelVsCapcom2_unlocked.7z" rom version as well as a Multibios set to USA mode.
Click to expand...
Your problem must be the multibios. I'd try using a regular BIOS.
 
Darksoft said:
muckyfingers said:
I have the same issue, I try to access the Game configuration menu and it locks up. I am using the "MarvelVsCapcom2_unlocked.7z" rom version as well as a Multibios set to USA mode.
Click to expand...
Your problem must be the multibios. I'd try using a regular BIOS.
Click to expand...
I'll try programming a regular bios and report back.
 
Darksoft said:
muckyfingers said:
I have the same issue, I try to access the Game configuration menu and it locks up. I am using the "MarvelVsCapcom2_unlocked.7z" rom version as well as a Multibios set to USA mode.
Click to expand...
Your problem must be the multibios. I'd try using a regular BIOS.
Click to expand...
I tried with a regular USA G bios and an H patched USA bios. Both hang when selecting Game Configuration. I tested with Netbooting and using a compact flash card on a Naomi 1. The rom works fine in Demul with said USA bios' and does allow the game configuration menu to be entered and turn on the features.
 
I never got it to work. is there some sort of checksum issue going on here?
 
Works fine here. Don't know what version BIOS I have though.
 
Last edited:
MetalliC said:
I think I see what may be the problem, try this for MvsC2
Code: 
offset   old new
003C3359: 89 A0
003C335a: 67 09
003C335b: 90 00
003C3496: 03 09
003C3497: 8B 00
Click to expand...

rocket said:
Thanks for investigating further. I cant try it yet as i am out of town
Click to expand...
@MetalliC

That fixed it, thank you!

I was able to enter the configuration menu, set the "VMU kit" to "CAPCOM", and my Dreamcast controllers are working. I tested this on a Netdimm using a Multibios set to USA mode
 
muckyfingers,

Thanks for following this up. Does the demo display the dreamcast vmu info in english? I remember the japanese mode haveing an explaination of how to use the vmu/controllers in japanese
 
rocket said:
muckyfingers,

Thanks for following this up. Does the demo display the dreamcast vmu info in english? I remember the japanese mode haveing an explaination of how to use the vmu/controllers in japanese
Click to expand...
The explanation is in English, it's telling you that you can use the save from the DC version to unlock hidden characters. The flashing logo where the "insert coin(s)" is, still says "VM" followed by Japanese characters.
 
That is great the english info was provided. I wonder if the locked characters are additional to the ones that unlock with normal play?
 
rocket said:
That is great the english info was provided. I wonder if the locked characters are additional to the ones that unlock with normal play?
Click to expand...
I don’t know much about the differences between the DC version and the arcade version, but the rom I’m using is the unlocked version, so all the characters are a available at first boot.
 
MetalliC said:
okay, simpler task first:
Capcom vs SNK2 unlocks patch: single match mode which can be set in game test mode, and fight vs all bosses mode (on title hold MP and MK then press Start)

for Capcom vs SNK 2 Mark Of The Millennium 2001 (GDL-0008)
Code: 
offset   old new
0014945C: 00 03
00149470: 00 03
00149484: 00 03
00149498: 00 03
001494AC: 00 03
001494C0: 00 03
001494D4: 00 03
001494E8: 00 03
0022D804: 00 03
0022D818: 00 03
0022D82C: 00 03
0022D840: 00 03
0022D854: 00 03
0022D868: 00 03
0022D87C: 00 03
0022D890: 00 03
for Capcom vs SNK 2 Millionaire Fighting 2001 (GDL-0007A)
Code: 
offset   old new
001487FC: 00 03
00148810: 00 03
00148824: 00 03
00148838: 00 03
0014884C: 00 03
00148860: 00 03
00148874: 00 03
00148888: 00 03
0022D804: 00 03
0022D818: 00 03
0022D82C: 00 03
0022D840: 00 03
0022D854: 00 03
0022D868: 00 03
0022D87C: 00 03
0022D890: 00 03
Click to expand...
By doing this, enables all hidden characters as well in CVS2?
 
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