Pretty cool game. What kind of carts are you building up to sell these? I'm interested but was curious if it was your own build or if you were getting the boards from somewhere.
The cartridges are hand-soldered by Niels of Ferrante Crafts. He has previous experience working with other developers to release their homebrew games. He sells flashable carts, or if you preferred to fabricated the PCBs yourself they are available on this repo https://github.com/Gekkio/gb-hardware