Yes it is, I literally beat that one right after quoting you on my third try! Using I might add a new game where I started straight at that episode.
It all boiled down to luck.
I put all my stat points into strength.
Watched for when she got ready to use fire and would go invisible. O would block me he rest because of use the rest of my ep for two ghost blasts.
Block when she went transparent that way she wouldn't get a free full damage hit in and then I'd just punch until I was in a position where I had barely more health then she did and unless she fire breath I would survive a tail strike as I did two consecutive punches to win.
Bit of she did something like 3-4 fire breathes in a row, which is something she did in my first fight, you basically lost because you can't consecutively trade blows with her the even if you block a 4.
Either you didn't understand what I was trying to explain or I wasn't clear enough. I'll try to explain it again being more clear.
"Watched for when she got ready to use fire and would go invisible" This is what I say that isn't working and that I think it's bugged. I don't know how you were able to, because in my game it clearly doesn't work.
This is how it's supposed to go:
turn 1: I use w/e move, she charges fire breath.
turn 2: I use invisible, she uses fire breath charged at turn 1. (I avoid all dmg from fire breath)
This is how it actually goes in my game:
turn 1: I use w/e move, she charges fire breath.
turn 2: I use invisible, she does NOTHING.
turn 3: I use invisible, she does NOTHING.
turn 4: I use invisible, she does NOTHING.
turn 5: I use invisible, she does NOTHING.
turn 6: I use anything BUT invisible, she uses fire breath charged at turn 1.
Seems like a bug to me. Whenever I am using invisible to avoind the dmg she "reads" my move, and doesn't actually use her attack, she waits until a turn where I don't use invisible to actually use the charged attack. I've tried time and time again, reloaded, closed the game, re opened, reloaded another file and played to that point...she just won't use her fire breath when I go invisible. Like I said, if she did, she would be beatable. But she doesn't so she isn't. Idk why she does for you when she doesn't in mine.