All three uses of Ruins in Deltarune are tied to Gerson. He doesn’t have much to do with the Ruins, but a lot to do with Undyne - this same logic is already used to say the Spamton uses of BAATH are quoting Power of NEO on the Leitmotifs page.
Yes, but by quoting the second part of Spear of Justice you’re also quoting the Ruins leitmotif.
I think it sounds a lot more like the variant used in battle against a true Hero, don’t give up, and an ending. Probably because it’s used in battle against a true hero though it also makes sense with don’t give up and an ending.
Yes. BIG SHOT also quotes Power of NEO in the part that uses BAaTH, which is noted in the leitnotif section.
Well it’s solely based off of what appears first, unless agreed by community consensus (e.g hey every becoming a tenna motif, but even then we still call it hey every motif for some reason)
So SOJ and HOJ quote ruins, not the other way around.
and this is also why BIG SHOT is listed as having BAATH, as BAATH appeared first and NEO was just the BAATH motif on impacts.