It's surprising to me these have never been dumped, considering the G Factor is a common (?) U.S.-distributed release... they seem to use the Shenzhen Niutai hack library, which do not appear on many consoles (the Overmax 151-in-1 uses that set, which I do have a copy of somewhere but it's buried in storage). I do think it'd be worth getting the cartridges for dumping, but that's not something I could do myself. I've never seen the "Whelk" game before either, I'm sure it's just a Nice Code reskin but it's not a game name I recall.