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NAM 1975 eye-catcher AES vs MVS

pierpa86

pierpa86

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Hello Guys,
I noticed while playing this beautiful game that there is a small big difference in the introduction of the game between the MVS version and the AES version.
In the AES version, after the animated introduction of the soldier, the topscore is shown and then a part of the demo gameplay.
instead in the MVS version the demo part is skipped and only the soldier's animation and then the topscore loop.

-MVS:
View: https://youtu.be/q0Ze0yK3CSU?si=tz5UnYPJ31D3Hjrc

-AES:
View: https://www.youtube.com/watch?v=QXf8cK_Ewpc


Do you think there is the possibility of activating this part of the demo game in MVS ? or is there a way to force p1 to always start in AES mode in a cabinet with original mvs bios in order to have the complete introduction?

Thanks to all
 
What a random find, and now i also want attract mode gameplay added to the mvs cart. I wonder if the data is in the mvs rom or completely missing.

Interesting that cutting room floor has some info about the neo splash screen, and it mentions the attract mode "plays back a gameplay demo", i guess they must have used the aes rom when testing to write that? Or the info there may not be 100% accurate, unless i'm not understanding what's written their correctly.

https://tcrf.net/NAM-1975_(Neo_Geo)
 
notmurray said:
What a random find, and now i also want attract mode gameplay added to the mvs cart. I wonder if the data is in the mvs rom or completely missing.

Interesting that cutting room floor has some info about the neo splash screen, and it mentions the attract mode "plays back a gameplay demo", i guess they must have used the aes rom when testing to write that? Or the info there may not be 100% accurate, unless i'm not understanding what's written their correctly.

https://tcrf.net/NAM-1975_(Neo_Geo)
Click to expand...
really interesting, yes file is the same of aes so its not completely missing...
 
notmurray said:
What a random find, and now i also want attract mode gameplay added to the mvs cart. I wonder if the data is in the mvs rom or completely missing.

Interesting that cutting room floor has some info about the neo splash screen, and it mentions the attract mode "plays back a gameplay demo", i guess they must have used the aes rom when testing to write that? Or the info there may not be 100% accurate, unless i'm not understanding what's written their correctly.

https://tcrf.net/NAM-1975_(Neo_Geo)
Click to expand...
done the changes in p1 and sprite for NeoGeo opening logo.
Still missing Gameplaydemo, some one have to find address on p1 :-D
 

Attachments

I had hacked Puzzled / JoyJoyKid to show both the story and the demo (it's in HBMAME). After that I looked at NAM-1975 to get the demo to work, but couldn't figure it out.
 
Last edited:
Huh, I could have sworn I've seen that demo play with an arcade bios, will have to do some testing with my cart...
 
Pythagoras said:
In file "001-p1.p1", Change from $67 to $60 at address $2ba3 :thumbup:
Click to expand...
This...works! Thanks so much! :)

I've added it to HBmame, but there the address needs to be 2BA2, so if anyone wants to do it in MAME, after loading the P1 rom, add the line:

ROM_FILL(0x2ba2,1,0x60)

compile, and it will work.

Makes me wonder what other games need this kind of adjustment.
 
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