I haven't even played the game yet. when i get to the point i'll let you know what i did. i'm gonna aim for at least 1/2 tyson's time. gonna pwn the crap outta it, the way i've done to other strong FF monsters. but i'm a stragtegist by nature. i think quickly under pressure and adapt well, generally speaking, so i should be able to give it a run for it's money, or rather my money.

(i'll talk big until i get to it)

I'm sure you could do it, I think the minimum time would be killing him in one stage in about 2 hours. The thing is it's almost impossible that you do it like that the first time, unless you do it with previous knowledge like watching a YouTube video or reading some strategies before.

Exactly as iro said, if your target is half of my time, then you shouldn't use any reference or guide to defeat him since I didn't used one either, I only cheated to find him and that's only cause I finished the game first, but besides that I didn't cheated anywhere else.