the game is actually pretty easy for me on the Snes version, except the final boss.
Its the hardest final boss of all FF games for me. by a mile. so be prepared. ( Though its really easy in the advance version because you can exploit the game to farm Movers, they give 199 AP. and you can then mimic spam Bahamut dualcast or something.)

but be prepared to see the most saddest scene in FF history...

PS: how far are you now, or how far have you got to before, if you havent beat liquiflame Watch out. he is the baddest of the bad.