I'm guessing a lot of super bosses you absolutely have to go back to only in Act 3 once you get limit break....I tried Golga again and got absolutely ass blasted and I'm around level 55ish. So I guess I may be.....whippin thatMaellePaintress ass soon.
Some strong endgame bosses out there. I just found an.... Interesting one a few days ago.
The toughest Mime in the game. Dude had crazy high HP strong attacks. You can only fight him one character at a time, no team allowed. Which is ok when you equip the Pictos for solo fights. When you beat him, the character you used for it gets a new haircut.... meaning no hair. Baldness.