nesdev.org

Of all the requirements, I'd be willing to give up real hardware first. Flash carts and emulators are far higher priority for me. So the fancy new mappers are more of a non-starter. Thanks for the heads-up about lack of PRG RAM swapping support in MMC5 emulators. I do think it's probably feasible to...

Thanks for that info. It's very much option (b). I've done some pretty extensive work hacking Crystalis (read: disassembled the vast majority of the game and rebuilt it with completely rearranged and relocated data tables), and was hoping to find another game to join in the fun. Unfortunately, MMC3 ...

Oh, that's a bummer. I'd been hoping 176 would be the fix I needed. It looks like not only do 37 and 47 not support swapping PRG RAM, but they don't support any PRG RAM at all. I don't see any mention of PRG RAM in the documentation for 116, either - does anyone know if that's a thing? Crystalis has...

Thanks for the helpful information. The hardware stuff is beyond me. I'm mainly looking for something that will run on emulators and powerpak/everdrive. But I'd like to design it in a way that doesn't prevent someone from flashing onto a real cart someday if they decide to (cf. SMaLTTP randomizer). ...

I'm looking into the possibility of making a mashup between two games, one of which is MMC3 (Crystalis) and the other MMC1 (Castlevania 2 or Metroid, haven't decided yet). I would like this to be able to run on native hardware, so I think I need to find a multicart mapper that is capable of switchin...