Once I cast attacker, and manage to cast any other spells. I already waste my turns healing myself. =\

Jr. has around 1,200HP, KOS-MOS has 2,700HP or so and Momo has 900HP. >.<; Plus I haven't really kept Momo up to speed with her skills as the rest of the characters -- I think she has all level 1 and some of level 2 (like Medica 2).

I did have a look at some walkthroughs on Gamefaq's, but they mainly just said things like "because I had this item I won, if not I would be leveling up".

I think the main problem is that this guy is way too fast to keep up with once he's on his second form down to 15,000HP or lower. =\