Well I wouldn't call them crappy, because I have only played one of them, but Kemco games are pretty easy to spot. They're almost always $15 JRPGs that are styled nearly identical to classic Final Fantasy games and Chrono Trigger. Theyre probably all made in the same game engine and they likely reuse a lot of assets between games. Nothing wrong with reusing assets, but it does lead to the games all looking very similar.