Quote Originally Posted by black orb
>>> I know the first two, but I dont remember fight a superboss named Atomos..
Atomos isn't technically a superboss; he's the boss of one of the towers in FF5's (SPOILER)second world, and he's exceedingly difficult to beat.

BTW Gilgame from FF5 was challenging too..
Yeah. I forgot him because I never actually fought him myself (I didn't even know where to find him on my playthrough of FF5), but I've heard stories and he sounds like a mean ol' bugger.