Ultima Weapon ( Final Fantasy VIII ) Ultima Weapon is a superboss in " Final Fantasy VIII " fought at the bottom of the Deep Sea Research Center . It has the game ' s most powerful Guardian Force to draw . Defeating it awards a SeeD rank . Reaching Ultima Weapon . After defeating and acquiring Bahamut in the Deep Sea Research Center , the player needs to return to the " Ragnarok " and come back to the island . A large vine structure will have grown in the place where Bahamut was , and the player can use it to descend to the lower levels . The lower levels are reached by expending units of steam pressure to open doors . The player begins with twenty units , and must conserve ten for the bottom to fight Ultima Weapon . In the third floor the player can open a way to the Steam Room to gain extra units of pressure . With the extra units the final door can be opened , leaving the player with exactly ten units needed to fight Ultima Weapon , and the excavation area can be traversed without random encounters if the Enc - None ability is used . If the player does not gain the extra units , they can ask Zell ( if he is in the party ) to open the final door without using up any steam pressure units , and the player must traverse the excavation area facing many challenging fiends in fixed battles that cannot be avoided with Enc - None . At the bottom the party fights Ultima Weapon by expending the last of their pressure units . There is a hidden save point the player can use with Siren ' s Move - Find ability . Battle . During the battle the player can draw the game ' s most powerful Guardian Force , Eden , from Ultima Weapon . Ultima Weapon won ' t reveal its HP when scanned and the battle ' s difficulty is determined by the level the party is when facing him . Ultima Weapon ' s most dangerous attack is Light Pillar , which kills a single character . It can use it multiple times in a row . Ultima Weapon will also cast Quake , which can be absorbed with correct junctions ; Gravija that drains 75 % of the party ' s current HP and cannot kill ; and Meteor that hits random targets 10 times . It will also attack physically from time to time . If the player can gain a sufficient advantage , Ultima Weapon is a useful place to draw several lots of Ultima spells , which are useful for junctioning . Ultima Weapon and Omega Weapon are the only enemies in the game that have Ultima in their draw - list . If the player opts not to mug Ultima Weapon , they win 100 Ultima Stones after battle , which can be converted to magic . If the player mugs they get Three Stars instead , which is used to teach Expend3 - 1 to a GF , or refined into 100 Triples . Strategy . A stock of Full - Life and Life spells and / or the Revive command are useful , though the player can opt for using Phoenix Downs to revive allies in low health to use Limit Breaks without having to cast Aura . As Light Pillar will kill a character no matter what health they are at , there is no need to configure the party ' s HP to the max ; instead , one can use the freed slots and magic to boost other stats . Speed is of essence , as Ultima Weapon can cast Light Pillar many times in a row , occasionally with no time to recover in - between . The party takes a risk if summoning GF on Ultima Weapon , as it will immediately cast Gravija . The party should start with either Meltdown or Doomtrain to apply the Vit 0 status , greatly increasing the damage done by all attacks , followed up by casting Aura on Squall , and using Renzokuken . Depending on his junctions , the model gunblade in use , and the final attack of the Limit Break , this strategy can take down Ultima Weapon in only a couple of attacks , or even one , should Squall use Lion Heart . Alternatively , Rinoa can be used with Angel Wing by removing all offensive magic save Meteor ( this includes status magic ) and boosting her stats with other types of magic ; Cure , Cura , Curaga , Regen , Esuna , Haste , Aura , Triple , Double , Protect , Reflect , Shell , Life and Full - life , are the options for junctioning . Rinoa will chain - cast Meteor , at 255 magic with Angel Wing and Vit 0 on target this can do upwards of 40k per turn ( 6 - 7k per meteor ) . With Auto - Haste and a high enough Speed stat ( junctioning Triple to Speed ) she can lay waste to Ultima Weapon before he can kill anyone . Angel Wing does not use up the magic it casts , and is the second best method of dealing damage in the game with Zell ' s Duel being the best using the " Armageddon Fist " tactic .