So, I have all of the monsters except Ultima Buster and the "Nem." I have captured all of the element monsters, so apparently that's not the trigger (ultima buster is an "element," right?....it's been a while.)

Does anyone know what the trigger is? Am I remembering correctly that, in addition to fighting all arena monsters to unlock Nemesis, I need to capture 8 or 10 of all monsters? Do you have any idea how long it's gonna take to capture ten tonberrys?! ...actually, many of you probably do. (yes, I know about that one spot in the cavern where tonberrys are known to lurk, still it takes forever)

I must clear all lv. 4 sphere grid locks before sundown tomorrow, or the world will end!!