This is probably the best board for it, if it's not correct feel free to move it.
About a week ago, I purchased a multicart from someone on Etsy, this one in fact.
https://www.etsy.com/listing/458208774/ ... ome_feat_2
And I've noticed that it has a wide variety of mapper support, unlike multicarts of old that consisted mostly of NROM titles. It even has support for battery saved games like Zelda or Crystalis, more on those later. I'd open the cartridge myself, one of the screwholes is covered by date sticker which may also act as a warranty void when removed, but I'm having some problems with a few games (namely Ikari III = screen jitters when scrolling vertically, Over Horizon = background goes black every fourth BG animation frame), and I wanted to see if I could get a replacement, perhaps he flashed a bad ROM to the cartridge. So this is where my questions come in.
Are these multicarts "home made", or are they sourced from somewhere like China? Considering how many titles retain the Nintendo license, these may be home made. Are there any tools they used to flash these carts, and what kind of boards do they use? Where did they get the shells for them, I remember RetroUSB used to sell some swanky translucent shells but haven't carried them in years. And finally, this cartridge has 20 games with battery backup, but you can only save progress for one game at a time. Is this a limitation of the NES and how it works, or is it possible to have each game retain its data without being overwritten by another?
Sorry for the big, wordy thread, but I'm curious about these. I have a morbid curiosity and see if I can get into this business myself, that's the main reason I'm asking. I understand this is a gray area, if not outright illegal, so my apologies.
About a week ago, I purchased a multicart from someone on Etsy, this one in fact.
https://www.etsy.com/listing/458208774/ ... ome_feat_2
And I've noticed that it has a wide variety of mapper support, unlike multicarts of old that consisted mostly of NROM titles. It even has support for battery saved games like Zelda or Crystalis, more on those later. I'd open the cartridge myself, one of the screwholes is covered by date sticker which may also act as a warranty void when removed, but I'm having some problems with a few games (namely Ikari III = screen jitters when scrolling vertically, Over Horizon = background goes black every fourth BG animation frame), and I wanted to see if I could get a replacement, perhaps he flashed a bad ROM to the cartridge. So this is where my questions come in.
Are these multicarts "home made", or are they sourced from somewhere like China? Considering how many titles retain the Nintendo license, these may be home made. Are there any tools they used to flash these carts, and what kind of boards do they use? Where did they get the shells for them, I remember RetroUSB used to sell some swanky translucent shells but haven't carried them in years. And finally, this cartridge has 20 games with battery backup, but you can only save progress for one game at a time. Is this a limitation of the NES and how it works, or is it possible to have each game retain its data without being overwritten by another?
Sorry for the big, wordy thread, but I'm curious about these. I have a morbid curiosity and see if I can get into this business myself, that's the main reason I'm asking. I understand this is a gray area, if not outright illegal, so my apologies.