I have a Wellon VP-890. I know it supports equivalent chips but what are they?
I don't think it would be worth the trouble to desolder, hack/inject then resolder and hope it works. I'd rather just buy another multicart that has the other games and save myself the hours of work. But I've seen your channel so I guess you enjoy that type of work. I definitely don't. Capcom CPS1-3 is the only thing I still have fun hacking. Everything else is "work".