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Thread: Problems with making mvs conversion game

  1. #1
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    Problems with making mvs conversion game

    Hello everybody ,

    This is my first post at the forum and unfortunately I need to ask you people for help. I've been trying to make a reproduction cartridge of Ninja Commando of Puzzle Bobble. Before I get stigmatized I'd like to tell you that Puzzle Bobble itself was probably a reproduction because, one - boards are from different sets and, two - there were just 3 out of 8 original chips intact. The rest were the UV eproms.

    First of all I checked if the board numbers of Ninja Commando matches the numbers of Puzzle Bobble. For that purpose I checked these sites:

    https://www.mvs-scans.com/index.php/Main_Page
    http://www.jamma-nation-x.com/jammax/mvsboardcodes.html

    I picked up a roms dump from other website and checked if the roms numbers matches and what are the sizes of the roms. C1, C2, C3, C4, V1 and P1 were 1 MB so programmed them on M27C800 eproms using MiniPro programmer with the adaptor. Similarly I used M27C400 for V2 which is 0,5 MB and M27C010 for M1 and S1 which are 0,125 MB.

    Next I changed the jumper configuration on PRG board according to the picture of Ninja Commando from mvs-scans.com.

    Unfortunately the picture I get from the game is totally glitched and screwed . Some graphics are displayed correctly but vast majority is not (even the neogeo logo on the startup). Sound works fine though).

    I tried to ruled out all the possible problems so I:
    - Checked the tracks with continuity test;
    - Tested different jumper configuration;
    - Checked the soldering on the pins and reloaded them again;
    - Cleaned the connector pins on the boards;
    - Cleaned the boards themselves to ensure there is no random wire causing shortage;
    - And of course before I unsoldered the Puzzle Bobble chips I checked if the game works (it worked perfectly).

    Here is the link to how does the boards look like and what pictures do I get:
    https://drive.google.com/open?id=142...wDY6ZVdoA2UWkX

    At the moment I'm completely clueless what I do wrong. Please help !
    Is there something that I missed? I would appreciate any suggestions. Anything that may help really.
    Thank you in advance.
    Last edited by Cloud; 12-11-2019 at 12:07 PM.

  2. #2
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    Wtf does you people mean????? This is a dumbass post. First off conversions are generally frowned upon and you're asking for help and haven't even made an introduction post or anything else for that matter. Maybe back up and try again Chet.
    Hit detection...It's all about hit detection.

  3. #3
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    I'm a fan of that game.
    I didn't get a chance to view the link because it won't load for me but assuming you are using the exact pcb's it looks like your S1 should be a 27c1000 or HN27c301 and you will need a JEDEC to NON JEDEC adaptor to program it or you can use the 010 and pull the pin 2 leg up and run it to pin 24 and vice versa.
    Here is an example
    look at the s1 chip
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    Quote Originally Posted by GutsDozer View Post
    Wtf does you people mean????? This is a dumbass post. First off conversions are generally frowned upon and you're asking for help and haven't even made an introduction post or anything else for that matter. Maybe back up and try again Chet.
    LOL since when are newbs disallowed from using the tech forum? Also the dude is converting an MVS bootleg to a (cheap) game for himself, I don't think anyone cares about that here.

  5. #5
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    Well if everyone is cool with it I'll retract my statement.
    Hit detection...It's all about hit detection.

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    I was gonna say this game is cheap, but I checked ebay, and it isn't.

  7. #7
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    Hello All!

    Thank you for your answers. Please let me address them in order they were given.

    Quote Originally Posted by GutsDozer View Post
    Wtf does you people mean????? This is a dumbass post. First off conversions are generally frowned upon and you're asking for help and haven't even made an introduction post or anything else for that matter. Maybe back up and try again Chet.
    Thanks for the rough welcome GutsDozer . Honestly - I knew there is a custom to make a welcome post on the forum but I forgot about it. Partially because I was so worried about my game and partially because this is actually the first forum I joined ever. Honestly I never felt I want to be a part of any community and this one is an exception so of course I will make up for what I did wrong.
    And as for the repros - they are just for my own amusement and I'm just using the game that was a repro already and for my own amusement. I sort of inherited some carts and as we speak I'm having 11 Puzzle Bobble cartridges and except for a donor cart I can't see any purpose for them. Also to preserve the game I'm storing the old original chips so someone may in future use them again.
    I hope it cleans a bad blood a little bit .

    Quote Originally Posted by BIG BEAR View Post
    I'm a fan of that game.
    I didn't get a chance to view the link because it won't load for me but assuming you are using the exact pcb's it looks like your S1 should be a 27c1000 or HN27c301 and you will need a JEDEC to NON JEDEC adaptor to program it or you can use the 010 and pull the pin 2 leg up and run it to pin 24 and vice versa.
    Here is an example
    look at the s1 chip
    BB
    Thank you for the advice! I totally omitted this on my initial checks of the game. It haven't helped a lot but I see progress. The screen is still a mess but much more graphics are displayed correctly now.
    I don't know what is about with those google drive links so I'm uploading them again on mega upload.

    This is before I took your advice:
    https://mega.nz/#F!uvpEDY6Y!k0NQEnX0BDrk0o4cjT-WMQ

    And this is after:
    https://mega.nz/#F!uvwCAKhS!_HsQuo0sdoR_zBSTQ49iBg

    Still we miss something :/. I don't think this is a bad pinout again cause M1 is marked 27C1001 which is as far as I know synonymous for M27C010 and M27C800 has the same pinout as HN62408 series.
    As a side note - the jumper at the back of the board is because the person who originally made the Puzzle Bobble repo thought it would be a good idea to bend like 10 pins or so on each eprom to hold it on place while soldering so while I was unbending them I accidently pulled out one soldering field .

    Quote Originally Posted by Neo Alec View Post
    I was gonna say this game is cheap, but I checked ebay, and it isn't.
    I only want to make repros of the games that are not very cheap and/or impossible to get. The choice of Ninja Commando was somewhat forced on me by the kinds of boards I own and I'm willing to sacrifice for the conversion sake. Honestly if we take the amount of work and the price of the eproms used for the task then is easier just to just pick the game from ebay if they are in reasonable prices. And as for the money - well it is complicated in my case. I live In Poland. Average income in USA is about 5000. In Poland it is the same - about 5000. But PLN instead of USD and the exchange rate is roughly 4:1 meaning that average Pole earns something like 1250 USD. That is why I'm trying to be cheap .
    Sorry for the long post

  8. #8
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    Average income in the USA is 5000? Jeez, I’m being screwed.
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    Just buy a NeoSD and stop thinking about murdering other games. This is one of the reasons any cheap common game that shares pcbs with an expensive game is no longer cheap or common. However you want to justify it to yourself is bullshit.

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    Quote Originally Posted by GohanX View Post
    Just buy a NeoSD and stop thinking about murdering other games. This is one of the reasons any cheap common game that shares pcbs with an expensive game is no longer cheap or common. However you want to justify it to yourself is bullshit.
    And it has completely nothing to do with more and more people in the hobby .

  11. #11
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    It's loading up now. My bad... I will check it out.
    BB
    Last edited by BIG BEAR; 12-12-2019 at 08:11 PM.
    In case of 'PM BOX FULL ANXIETY' , E-MAIL ME

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    one or more of the C roms is bad
    Re-write the C1 first and see what that yields.
    BB
    Last edited by BIG BEAR; 12-12-2019 at 08:58 PM.
    In case of 'PM BOX FULL ANXIETY' , E-MAIL ME

    bigbearatdreamamusement.net replace "at" with an "@"

    I'd like to sincerely THANK everybody that supported SHOCKbox over the (EST 2001) 8 - 9 years I did it.
    http://www.dreamamusement.net/photos/sth.gif is stocking the SHOCKbox right now!! They also have a huge library of SHOCKbox inserts for DL and or printing.
    LE GEEK SHOCKbox inserts

    I'm not protecting myself from you....I'M PROTECTING YOU FROM ME.
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    Quote Originally Posted by GohanX View Post
    Just buy a NeoSD and stop thinking about murdering other games. This is one of the reasons any cheap common game that shares pcbs with an expensive game is no longer cheap or common. However you want to justify it to yourself is bullshit.
    Yep, this. Or just buy a Ninja Commando cart. It's not especially rare.

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    Another cheap option is the 161 in 1 cart. That has Ninja commando.

    Really don't care much about this sort of thing but why even bother unless you're just bored or have alot of time on your hands.

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    Thank you all for your answers and suggestions. I've managed to fix the game with a help.
    Take care !

  16. #16

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    And that's the story of the world's first bootleg Ninja Commando cart.

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    Quote Originally Posted by RAZO View Post
    Another cheap option is the 161 in 1 cart. That has Ninja commando.

    Really don't care much about this sort of thing but why even bother unless you're just bored or have alot of time on your hands.
    This.
    A 161 in 1 will solve most of your problems that you are interested in.
    Last edited by NexusX; 12-16-2019 at 08:21 PM.

  18. #18
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    Quote Originally Posted by GohanX View Post
    Just buy a NeoSD and stop thinking about murdering other games. This is one of the reasons any cheap common game that shares pcbs with an expensive game is no longer cheap or common. However you want to justify it to yourself is bullshit.
    Stop trying to fuck up my retirement plan!
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    Quote Originally Posted by SNKSOUL View Post
    I ask a complete account removal extraction

    I ask the deletion authorized by Neo Geo Admin Judge Dredd.

    Thanks a lot.

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    Quote Originally Posted by DanAdamKOF View Post
    LOL since when are newbs disallowed from using the tech forum? Also the dude is converting an MVS bootleg to a (cheap) game for himself, I don't think anyone cares about that here.
    People tend to not start off practicing with the expensive games.

    He's in the "harming animals" phase of his psychosis.

  20. #20
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    No need for this thread to continue.
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