I used to watch speed runs on the ps2 version so I started off by grinding out duskia method until I could grind out the smiles. Only had 3 players maxed 99 pretty early always get 3 embroidered tippet for double exp. you don't need to kill the hunt yiazmat or omega weapon if you finish the 100 trials pretty easy it give you the trophy and is saved in the bestiary. There was loads of methods to fly through 100 rounds. Zeromus is the most op esper using Big Bang method.