PLEASE DON'T READ THIS IF YOU HAVEN"T GOT TO CHAPTER 9!!
I've been pretty glued to this game and it is amazing.....now i've got to boss battle chapter 9. I have even read a few guides and tried the advice but i keep dying after the doom buff has been applied to lightning after the clock reaches zero and the boss still has 70,000 - 100,00 hp left. I have mot avoided any battles up to this point and all characters are pretty well leveled up and not had any troubles defeating any enemies up until this point I am using lightning, hope and fang in this battle, get rid of the four heads quick enough stagger Barthandelus fast enough but then every time i stagger him after the first he quickly casts Destructo and recovers. I can survive his onslaught but just don't seen to have enough time after Doom is applied to defeat him.
Please someone help, I've been struck for two days and have tried to beat him about 15 times.
Done it! I defeated the boss on the second time of trying, thanks woody1100. At the start of the game i'd changed the battle speed to slow to get used to the controls and forgotten about it. I thought that the buffs and status changes would also change to match the game speed, but they don't, so I was running out of time in the battle. Zooming along now. :)