As a side note, just because you got me thinking about this, if this game were more popular, what I would likely do after publishing the 7800 version, is then start work on the next version for, perhaps, the Lynx (or a better 7800 version [assuming it can be better... I have my doubts]). That version would likely take some inspiration from the 800 version (plus other versions https://www.oldgames.sk/en/game/river-raid/pictures/). I would also add as many players as the systems can handle (8 players on the Lynx or Jaguar would be utter chaos--and need much much more creative game balance work). Then, if the audience demanded an 800 version, that is the version I would backport to the 800 (limited to what the 800 can handle, of course). But that's just a guess. If the audience would still rather have a 2P port of the original 800 version versus an improved 800 version... I tend to work on what the most people are telling me they want me to work on.