there are a few set ups that publish retro games, maybe we should contact them?
That would be great , i'd have to ask other members of the team but i think they would be ok.
What about are legal issues as original game right belongs to Core and Firebird , i remember spoutnick team had problems about this when making RD3.
Since it stays free , it can be considered as fan art and there is a tolerance but what about a selling disk that contains original code and gfx of original Rick.
more news : i finished to use a bit of courage to write my own FDC code so , not only you'll have high score but they will be saved on disk and visible on CATalogue (that's not as good and complex as CAT's Art visible at Sylvestre site but it is fun)
ingame :

catalogue :

I am hunting lastest bugs on my CPC+ but this poor thing have a contact problem with alimentation plug ans that seems to cause random bugs , i'll need to change it.