Giant cactuar help in FFVIII?, Can i change names also in FFVIII?

1. Is it possible to change the main charecters names in ff8 besides squall and rinoa and is it possible to change there names back in after i change them.

ALSO.

2. What are some tips on getting giant cactuar summon i keep dying i keep summoning leviathen and boosting up his attack thing with the square button and occasionally trippling water and using it on him but how else can i beat him.Giant cactuar help in FFVIII?, Can i change names also in FFVIII?
those are the only two u can change and u cant change them back.



as for the giant cactar.



You can find the GF Cactuar on Cactuar Island, a small island to the south of Esthar. You will know the island by the appearance of a randomly placed, small green dot in the sand. That dot is the Jumbo Cactuar, a giant Cactuar. Walk up to him to engage him in combat. To defeat him, use Water-Elemental attacks (especially Leviathan) and strong Limit Breaks (especially Renzokuken). He will randomly counterattack with a move called 10,000 Needles that kills a character instantly no matter what; counter this with Life, Full-Life and Alexander's Revive. Once you beat on him enough, you will see a message that Jumbo Cactuar ';is hesitating';. At this point, DO NOT ATTACK or he will run away and you'll have to start over! Just summon Leviathan and have your Limit Breaks ready and unload on him with EVERYTHING YOU HAVE. If you're lucky, he'll fall and you will get the Cactuar GF.