From ROM dump to emulator

[McHorse]

Hi,
I recently couldn't resist taking a retro handheld (240games) home with me out of curiosity what was inside and if i could make it run other games. Some google image searches later I learned a new word, NOAC. I amputated its flash memory and read its content several times with reinserting just to be somewhat sure of a good read (see attachements).

Now i was hoping to get this rom dump running in an emulator but haven't succeeded yet. Is there a way to determine which hardware this rom is made for? I suppose something like VT03? I'm very new to this NOAC world

Much appreciated.

[forgotusername]

It's likely either VT09 or some derivative of VT369, but I could not determine the specific mapper. It's definitely strange; it contains VT03 games that are converted to VT09 format, something I've never seen before on another console. I attached two VT09-converted game extracts below (with Thin Ice having its copyright restored).

As a side note, does anyone know what this chicken-ish sprite set is at the start of the ROM? It's heavily overwritten (whatever it is), but I don't recognize it as a game.

[NewRisingSun]

Attached please find the correctly-headered ROM file.

[Soloname_07]

Hi, I just found several unused graphics in the multicart ROM, it seems to be the same system but VT02.

[lancuster]

As a side note, does anyone know what this chicken-ish sprite set is at the start of the ROM? It's heavily overwritten (whatever it is), but I don't recognize it as a game.

I suppose it could be one of the enemies from the game "Ling Jie Hu Fa: Shock" (bootleg version of Blackthorne on NES).But that's just my guess.
I would like to see the correct dump of this game myself.

[McHorse]

@forgotusername & @NewRisingSun thank you both very much! That got it running in an emulator

Although atm i don't have the time, I am somewhat curious if i could get Choplifter running on this system for nostalgic reasons.
Would this involve a cumbersome task of converting?

[gmestanley]

Choplifter uses a proprietary mapper from Konami that uses CNROM (mapper 3) as a base. Most VT chips, which includes the VT09, by default are only positioned to run games with no mapper (mapper 0, NROM) or mapper 4 (MMC3) properly.

I was able to swap the 20th "action" game, Brother Ball, with Choplifter, and I wasn't able to progress past the demo. If you press Start, all it does is go back to the same demo. Likely does need some converting.