Hy. Okay, I understand. Maybe you find a good solution in the future, it would be nice. Or maybe someday, also one of the numerous C64 crackergroups will release a cartridge version (Easyflash maybe?) or a d64-version of the "4Goal" games in which all functions/versions are united? (Aaah, also a nice name would be "4Goal United" yeah). We will see.
I definitely like your 4goal games, because they are especially well suited as party games, played with friends and since my childhood, I always liked simultan games, in which more than one player is involved at the same time, because in my opinion, these games give the most fun. :-)