Is there any known information about making repro cartridges? For example is it possible to use a “Mario Tenis” game and change rom with an eeprom?

I wish to own a copy of “faceball remastered” and/or “bound high!” in the future. I would love a copy of Hyper fighter aswell 😛 but since that rom can not be released -.-” this probably won’t happen.

So… any possoble help in making repro’s? Or buying them?

and what would you charge for a game and shipping?

Donor carts, not cash. I usually trade 2 donors for one (loose) repro game. Probably 3 if the game needs additional SRAM / battery.

Any specific need for the donors? or does any game do?