Dragon Quest V works ok?
FF4 & 6 have problems on the character view, equipment, etc. screens. Can sort of kind of get it to sort of work by messing around with the priority orders, but not enough to be useable IMO.
Lufia 1 has all sort of rendering problems right from the get go, and froze on me about halfway through the intro and IIRC I had to mess around with sprite priorities for that one as well. (Haven't tried it again since I've gotten my 3in1 to see if the extra RAM helps the freezing...)