Ok Ive gotten the Holy Lance, Ragnarok, Murasame, Masamune, all of the best armor and my characters levels are: Kain-64, Rydia-60, Cecil-64, Rosa-63, Edge-64. YET I STILL CANNOT DEFEAT ZEROMUS. I stole the DkMatter from him. Here is my strategy: Kain-Jumps, Rydia-Summons Bahamut, Cecil-"Fights", Rosa-Uses Cure 4 every time (Because if I dont Ill die), Edge-"Fights" (Because I dont have anything good to Throw). Any help would be appreciated. Thanks.

EDIT- Nevermind everyone. In the time that the forums were down, Ive leveled up a bit and beaten the game.