Do not use ePSXe (PC)! Instead use any other emulator. For the purposes of FFT, pSX works wonderfully well!
Aww I didn't mean to be rude. Apologies.
Legit question then, to help narrow it down: Monster unit?
Will it be have a plot in the storyline?
Will this enemy be found only on a certain map?
a offensive class?
A support class?
Is s/he based off of a previous FF character?