In the southeast of the world map, there is a small island
where a cactus pops up from the ground. Land and fight. These
little flighty cacti give 20 AP apiece, however, are prone
to run off before defeat. Be quick and raise your accuracy.
LEARN THOSE GF ABILITIES! Approach the little pop up cactus
on the map to fight Jumbo Cactuar. Be not fooled, he is TOUGH.
Especially that 100,000 Needles attack, ouch. Be sure all
your characters can revive a lost character. He has a LOT
of hit points. He is weak against water, so junction 100 waters
to your attack. Use Aura, water, Shiva and Leviathan GFs if
need be. Draw MELTDOWN and cast it on him. Besides the Jumbo
Cactuar, the only other place Meltdown is available is from
monsters called Gayles in the snow field area(Thanks to John
Yip for that factoid). Make sure you stock as many of this
spell as you can. Hope Squall uses the Lionheart on Limit
breaks, use Irvine's AP ammo, or the best you have. Though
not a powerful GF, he is the only one who allows Luck and
Evasion junctions. He only deals as much damage as the first
digit of his level multiplied by 1000. Therefore a level 67
Cactuar would deal 6000 damage.