Those are the same EO3's Pasaran. A random enemy the occasional shows up can pass threw walls and runs from you. Technically the first game had Yggdrasil Buds but they weren't quite the same. Those were just three super rare encounter for filling your monster dex up. Pasaran's ran had high defense/Evade low HP, self destruct, and were foes. It they self destructed you get nothing.