Why Fossil Fighters Makes Other JRPGs Unplayable

I probably should start with the name of the site, shouldn't I? It's not literally true, of course, I've played many other JRPGs and enjoyed...okay not that many of them, honestly. But I mean I liked Undertale! And the first half of Mother 3! So there we go. Anyway, this game does some rather unique stuff that, although some of it appears elsewhere, I have never seen in combination like this:

By no means does Fossil Fighers have no flaws, but it does a lot of cool things I really wish other games picked up on.