Mine would have to be at the Ogir-Yensa. Since it's a very vast area to explore, I had to toil away without depending on Save Crystals.

I've finally gained 3 levels until I encountered this giant Elemental thing. I got overconfident and attacked it and ended up being killed by its Firaga worth 2k damage.

I yelled "F***!" and almost chucked my PS2 out the window. After all, who wouldn't be frustrated after suffering for 2 hours and end up with a game over? :mog: