Weapon ( Final Fantasy VII creature ) The Weapons , also known as the WEAPON , are powerful monsters in the world of " Final Fantasy VII " . Created to defeat Jenova , the Weapons are massive bio - mechanical engines of destruction designed to protect the Planet . Five Weapons feature in " Final Fantasy VII " , and two more are introduced in its extended universe . They exist as powerful boss es , and several of them as superboss es . Each Weapon bears a unique appearance , and a few appear to have elemental attributes . The Weapons are tall and massively powerful , with HP numbering in the six and seven digits for most of them . They are reminiscent of the giant monsters that appear in Japanese " " films , such as " Godzilla " . Story . The Weapons were created 2000 years ago when Jenova fell on the Planet . The Planet autonomously spawned the Weapons to fight Jenova , but they ended up not being needed as the Cetra sealed her away . With the threat to the Planet contained , the Weapons crystallized in Mako at the North Crater , awaiting the day when the Planet would be endangered and they would be needed to protect it again . In " Crisis Core - Final Fantasy VII - " The Banora mining site was closed when Shinra Electric Power Company discovered the Emerald Weapon in stasis . The village was built to hide the discovery with Shinra staffing it with residents . In " Final Fantasy VII " , Sephiroth acquires the Black Materia and uses it to summon Meteor . Sensing the impending threat , five of the Weapons awake and break free from their Mako cocoons . Due to the energy barrier Sephiroth erects over the North Crater , the Weapons cannot sense his presence and do not target him . Instead , the Weapons go on a rampage . Their main targets are Junon and Midgar , Shinra ' s bases of operations and the largest consumers of Mako energy , and thus perhaps the greatest threats to the Planet the Weapons could detect . Between the combined forces of Cloud Strife ' s party and Shinra , the Weapons are destroyed . List of Weapons . Sapphire Weapon . Sapphire Weapon attacks Junon approximately one week after the Weapons awoke . Sapphire Weapon is aquatic with a long serpentine tail and a streamlined blue and purple body with fins . It has two arms , but no visible feet , indicating it cannot move on land . Emerging from the water and charging towards Junon , it is immune to the Shinra military weaponry until it takes a point - blank blast from the Mako Cannon . The cannon obliterates its head , leaving Sapphire Weapon ' s remains to sink into the water leaving a crater on the ocean floor . Sapphire Weapon is not named in " Final Fantasy VII " , but the extra fourth disc of " Final Fantasy VII International " addresses it by name . Ultimate Weapon . Ultimate Weapon emerges from the North Crater along with the other Weapons and disappears into the sky . It attacks Mideel , and the subsequent earthquake destroys the town . Ultimate Weapon is draconian with four legs , two arms , wings , and a long tail and neck . It is black and purple . Cid Highwind and his allies fight it when it emerges at Mideel , but it escapes . After Diamond Weapon is destroyed , Ultimate Weapon reemerges above the newly - formed crater near Junon . After defeating it here , Ultimate Weapon flies over the world , stopping at one of several predetermined locations after Cid rams it enough times with the " Highwind " . After being fought at various places , it is destroyed near Cosmo Canyon and leaves a crater the party can use to access the Ancient Forest . Diamond Weapon . Diamond Weapon appears when Shinra moves the Mako Cannon from Junon to Midgar , and emerges from the waters to the north and marches against the city . Diamond Weapon is roughly humanoid in appearance , with a distinct pair of feet , hands , shoulders , and a torso and head . It has a covering over the back of its legs similar to a cloak or cape . Cloud Strife and his allies intervene to save the city and attack the Weapon , but it is undefeated and continues on to Midgar . The Mako Cannon has been modeled into a more powerful version , now called the Sister Ray , powered by the seven remaining Mako Reactor s around the city . It fires at Diamond Weapon at the same time as Diamond Weapon unleashes a barrage of energy at Midgar . The Sister Ray ' s beam destroys Diamond Weapon and continues on to pierce Sephiroth ' s barrier over the North Crater . Diamond Weapon ' s final assault impacts the Shinra Headquarters soon after , seemingly killing Rufus Shinra . Diamond Weapon wasn ' t a fightable boss in the original Japanese game version . Yuffie ' s weapon , Rising Sun , which can be stolen from Diamond Weapon , existed in the game data , but could never be obtained . The Diamond Weapon glitch can prevent the player fighting Diamond Weapon , but it ruins their save file . Ruby Weapon . Ruby Weapon can be seen in the FMV sequence emerging from the North Crater , but otherwise plays no role in the story . Ruby Weapon is , like Diamond Weapon , vaguely humanoid with arms , legs , a torso and head , but its limbs are elongated and misshapen beyond human proportions . Ruby Weapon appears in the desert around the Gold Saucer after Ultimate Weapon is defeated . It appears at first as an indistinguishable red fin moving under the sand , but once approached it erupts and attacks . Fighting it is optional . Ruby Weapon , as well as Emerald Weapon , did not exist in the original Japanese version of " Final Fantasy VII " , being added to the North American and subsequent releases , and thus the FMV showing the Weapons emerging from the crater was slightly altered to include the two . Emerald Weapon . Emerald Weapon can be seen in the FMV sequence where it emerges from the North Crater , but otherwise plays no role in the story . It has a visible head and two shoulder - like appendages , as well as what could be seen as a mouth . Otherwise , its body has two large leg - like extensions but without feet , and two large fins extending from its back . Emerald Weapon appears in the Bottom of the Sea between Costa del Sol and Junon , and can be found as soon as the player acquires the submarine . It moves slowly and the player can outrun it easily , but approaching it initiates a battle . Fighting it is optional . Jade Weapon . In " Before Crisis - Final Fantasy VII - " , the Jade Weapon is insectoid in appearance , with a green / blue / purple pair of wings with multiple short legs and a pair of antennae . Awakened by the Turks ' destruction of Zirconiade , Jade Weapon begins to hunt down the Turks involved in Zirconiade ' s destruction . As " Before Crisis - Final Fantasy VII - " was a mobile phone game , Jade Weapon would appear depending on where the player was in the real world . It could appear over Midgar , Cosmo Canyon , Icicle Inn , Junon , Costa del Sol , or Wutai . Omega . In " Dirge of Cerberus - Final Fantasy VII - " , the seventh and final Weapon , Omega , appears . Unlike the other Weapons built for protecting Gaia against Jenova , Omega is meant to be its last resort ; it appears when the Planet is in dire danger of being destroyed to collect its Lifestream and leave into space , transplanting the Lifestream to a new planet and leaving the old one a dying husk . Omega is forced to appear by Deepground and Weiss , under the control of Professor Hojo . Deepground rounds up and kills many people , tricking Omega into thinking the Planet is in danger . Using the Protomateria , Weiss taps into Omega ' s powers , but Vincent Valentine summons the power of Omega ' s messenger , Chaos , and defeats Weiss . Hojo ' s influence over Weiss is broken when his brother Nero merges with him . Omega has still been called , and Vincent must destroy it to save the Planet . Other appearances . " Crisis Core - Final Fantasy VII - " . A frozen Emerald Weapon appears as an Easter egg buried in Banora Underground . In the northern sections of the first area " Depths of Judgment " , Emerald Weapon ' s shoulders emerge from a formation of crystal . The ridges and slots on the shoulders identify it , but the player is unable to move Zack or the camera as to see past the crystal . Emerald Weapon lies beyond the map borders , and the player cannot get closer to it . The same Emerald Weapon sighting might be encountered on background in mission 9 - 6 - 6 , during the battle with superboss Minerva . " Theatrhythm Final Fantasy " . Ultimate Weapon appears as a superboss under the name " Ultima Weapon " . " Final Fantasy Airborne Brigade " . Diamond Weapon appears in " Final Fantasy Airborne Brigade " . " Final Fantasy Record Keeper " . Ultimate Weapon and Diamond Weapon appears as bosses . Merchandise . Ultimate , Diamond , Ruby and Sapphire Weapons appear as figurines in the Final Fantasy Creatures series . Ultima Weapon is part of Vol 1 released in 2001 , Diamond Weapon is part of the vol 3 that came out in 2003 and Ruby and Sapphire are part of the Vol 4 released in 2004 . The Final Fantasy Creatures collection figurines require minimal assembly and there are three types of every character : full - color , crystal , and chrome . In North America , Final Fantasy Creatures were packaged in clear packaging with multiple creatures per pack , and did not require assembling .