Found out if you open your ARP and if you have sst29ee020 flash chips you can have both Kai and ARP in one cart. You can also remove the original chips and replace them with the larger 256k chips as well. Check if A17 has no connection(lift the pin if it does,) then put a jumper between the two...
So I'm playing around with this 139 decoder and a couple 27c322's to try and make an 8MB Genesis cart but so far have not got it to work. Some questions have come to mind about how this should be wired up. This is going off a setup for a 6MB Snes game as a reference which has the address input...
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