The group of bosses that gave me fits were in either FFII/III US. You go stalking through this tower, round a corner and all of the sudden this trio of chicks falls out of the sky on you.
The real tall skinny Manute Bol looking one, the lardass in the middle and the midget Gary Coleman one. You whack away at one of them and they would bring them back to life.
God I hated those..
Also up there in the annoying category were the little dolls that merged to form uber creepy big ass doll.
I loved those games..