ボビン and ブキリカ.
The former appears to be some kind of zombie, while the latter appears to be some kind of walking tree stump with eyes. I could just make something up (like "Zombie" for the former, "Stump" or even "Treant" for the latter) but I'd like to know how they arrived at the particular term so I can do the thing properly, you know?
Edit: There's also バロクス which is some kind of boulder with a face. I've called it Barocks for now, 'cuz at least it has "rocks" in the name.