One of the eight weapons created by the Planet to respond to the threat Jenova, the Calamity from the skies, brought with her arrival and subsequent wave of destruction to the world and it's inhabitants at the time, the Cetra. However, as Jenova was sealed shortly after their creation, the weapons didn't need to interfere, thus they entered a deep slumber to watch Jenova and await the day the planet would need them again. The weapons function is to eliminate any threats to the planet, regardless of what it. In the past the summoning of Zirconiade caused the Jade weapon to be dispatched, and in the present the threat of Sephiroth's return and the summoning of Meteor led to another five: Ultimate Diamond, Sapphire, Ruby and Emerald to awaken. But as Sephiroth hid himself behind a barrier in the Northern Crater, the weapon focus their attention on the next biggest threat harming the planet: humankind. After awakening, the Ultimate Weapon flies around the world attacking different human cities and settlements, and the party must prevent it from blasting away different locations. It's also notable that when defeated it will give Cloud's ultima weapon, his strongest sword.

Classification: Biomechanical Entity, Planets Defense Mechanism

Powers and Abilities: Superhuman physical characteristics, longevity, likely self-sustenance(Types 1 and 2), large size (Type 0), flight and levitation, explosive aura(Weapons can be seen engulfed in a blue energy and tends to result in being repelled when approaching them), energy manipulation and energy projection (vi Ultima Beam), magic, elemental manipulation of lightning (via Thunderball) and earth(Via Quake 2/Quara) veriety, resistance to mind manipulation, soul manipulation and empathic manipulation(slept in the Northern Crater, a place overflowing with spiritual energy, presently known as Mako, for thousands of years, yet it seemed unaffected as it immediately flew off to carry out it's mission without question), deconstruction, matter manipulation (It's body was unaffected by the Mako, despite the Livestream being able to diffuse physical matter to retake the spirit energy of living beings) and corruption (Type 2) (The Weapons were created to fight Jenova, who could unleash a powerful virus that mutated others into monsters. Mako can mutate creatures into monsters as well, yet the Weapons seemed unaffected), as well as elemental manipulation( Of water, earth, and gravity variety)

Attack Potency: Solar System Level (The Weapons are comparable to a fragment of Jenova's power and to Zirconiade, the Ultimate Summon, beings stronger than Bahamut Fury, whose Pocket Dimension is this size)

Speed: Massively FTL+(Weapons should be comparable to Zirconiade, the Ultimate Summon, which makes them superior to Bahamut Fury)

Lifting Strength: Class G via sheer size

Striking Strength: Solar System Level

Durability: Solar System level(Can endure the attacks of near end-game party, who were strong enough to destroy several fragments of Jenova, and were probably already powerful enough to defeat Jenova•SYNTHESIS, her ultimate form)

Stamina: Very high. Can fly around the planet, at high speeds, for extended periods of time, stopping only when it decides to attack a particular location, as well as engage the party in combat repeatedly, during said fights, without visible exhaustion.

Range: Extended melee range with its body, likely several kilometers with energy and magic

Standard Equipment: None notable

Intelligence: Below Average. Weapons seem to function based on instincts and the orders the planet placed on them.

Weakness: None notable

Notable Attacks and Techniques: As a being created by the planet to act as it's defense, The Ultimate Weapon can use many different attacks that involve the use of spirit energy and the powers of the Planet itself to perform magic.

•Ultima Beam: The Ultimate Weapon charges a sphere of blue energy and shoots a massive beam to blast all his enemies.

•Thunderball: The Weapon launches a sphere of yellowish white energy that upon contact explodes in a discharge of electricity engulfing the target.

•Quake 2/Quara: A powerful earth spell that creates a localized earthquake to strike opponents.

•Shadow Flare: An incredibly powerful non-elemental spell. A blinding light engulfs the area as dark flames scorch an opponent.