Emerald is a piece of cake. Quadra Magic + Demi with HP Absorb + Mime takes him out, when it stops doing less than 9999, whack him. Ruby, just W-Summon Hades and KoTR with HP Absorb + Mime. Ultima weapon, although cool looking, is pathetic. I was able to beat him with a lvl 30 group (yes lvl 30!). Tried Omega once, got whacked by Megido Flame.