Sephiroth/Dissidia (PSP)

Sephiroth is one of the villains fighting for the side of Chaos in Dissidia Final Fantasy. A legendary SOLDIER operative who wields an impossibly long blade with great ease. In battle, he combines that reach with incredibly swift swordplay that crushes opponents in the blink of an eye. Standing apart from the other villains, Sephiroth has little interest in either destroying the world or ruling it, working towards a separate goal. His immediate desire is to face his archrival Cloud, and he manipulates Cloud's emotions to force him into battle.

Attire
His outfit is a modification of the one from the Final Fantasy VII universe, featuring some changes in order to make it similar to Amano's artwork, such as an ornately decorated belt made of materia looking beads and a highly decorated buckle around his coat, a tail of the same materia looking beads on his right bracelet, a sash on one arm and one under his coat on the same side, as well as completely new pauldrons, both of which are fully loaded with materia. For his alternate costume, he has his shirtless appearance as seen in the final scripted battle of Final Fantasy VII and his hair is a darker shade. His crystallized version is cyan in hue.

Destiny Odyssey I
Warrior of Light encounters Sephiroth, who has just wounded Firion and stolen his Wild Rose. The two fight and the Warrior of Light wins. Sephiroth then asks why the Warrior of Light is fighting,and the Warrior of Light tells him that he is simply trying to end the war. However, Sephiroth thinks the Warrior of Light's in the war for enjoyment before he leaves, sensing it's time to give Cloud what he wants.

Destiny Odyssey V
Afterward, the Emperor and Ultimecia approach him asking for an alliance to rule over all, even Chaos. Sephiroth declined and was about to fight the conspirators when suddenly, the Emperor noticed Bartz spying on them, thus giving Sephiroth the opportune moment to leave the battle and continue his manipulation of Cloud.

Destiny Odyssey VII
Sephiroth converses with Garland about memories before going to see Cloud, who refuses to fight him because there is no meaning. Sephiroth calls Cloud a puppet before revealing Firion's Wild Rose, meaning that he has either wounded Firion, or worse. This angered Cloud, and Sephiroth taunts him to go after him.

He soon crosses paths with fellow Chaos minion, Golbez. It would seem that Sephiroth had figured out that he was seeking the light and helping his younger brother, Cecil. Sephiroth didn't seem to care that much, and taunted Golbez about his need for light saying that in time, the light of Cosmos will burn him. He later crosses paths with Cloud in the Planet's Core, Sephiroth explains why Cloud is a puppet with no will or motivations of his own, simply waiting to be given a command. Declaring that facing Sephiroth was done on his own free will, Cloud fights and defeats him. When Cloud retrieves his Crystal, Sephiroth says it was only through his manipulations that Cloud got as far as he did, and he will continue to manipulate him in the future.

Shade Impulse
Sephiroth is fought one last time by Cloud. He once again presses that he is Cloud's manipulator, saying that he is infected with a disease: despair. After the ensuing battle and his defeat, Sephiroth declares that even though Cloud has no ties with him, Sephiroth will remain as a shadow within Cloud's heart and that he will always control him, no matter what he may think.

Battle
In battle, Sephiroth uses a "Focused Blade" style, constantly bombarding his enemies with swift sword attacks. A single strike will in fact leave behind bands of energy that strike multiple times. Sephiroth's Brave attacks are unique in that many of them consist of many repeated strikes at once. While pressing Circle again will continue the combo, pressing it too soon will prevent Sephiroth from finishing the first strike before moving on to the second, minimizing overall damage. Timing is crucial to maximizing Sephiroth's power.

Boss
Sephiroth is fought in Destiny Odyssey I and VII, Shade Impulse, and Distant Glory: Villains.

EX Mode
Sephiroth's EX Mode is called "Reunion", in which he gets a single black wing on the right side of his back, similar to his appearance in Advent Children as well as in the Kingdom Hearts series. In EX Mode he gains the ability to glide, and a variation of Heartless Angel, which reduces his opponent's Brave Points to 1 by pressing R and. While it has a long casting time, it is faster than Golbez's similar Black Fang and Ultimecia's Time Stop.

His EX Burst is Super Nova, where the player repeatedly taps to fill up a limit meter. If the limit meter is filled up, Sephiroth knocks the opponent into the exploding sun. If the meter is not filled, Sephiroth merely executes a normal sword slash. In the full version of the move, Sephiroth stands in front of the fire in a similar fashion to the way he stands among the burning village during the Nibelheim Incident, his trademark scene.

Equipment
Sephiroth can equip the following: Helmets, Light Armor, Heavy Armor, Shields, Gloves, Katanas, and Polearms.

Allusions

 * Sephiroth's attack Hell's Gate is an aerial downward stab, and is based on the attack he used to kill Aerith Gainsborough.
 * The disease Sephiroth mentions in Shade Impulse references the worldwide pandemic he caused in Advent Children, Geostigma, which Cloud was also infected with.
 * According to Sephiroth himself, he killed himself in the previous war against Cosmos in order to ascertain the true nature of life and free his spirit from flesh to become more powerful. This is a reference to the Nibelheim Incident, where Sephiroth was "killed" and traveled the Lifestream, emerging years later as a more powerful being.
 * Sephiroth speaks a variation of five lines from his appearance in Final Fantasy VII: Advent Children. The first is one of his victory quotes outside of Story Mode, "I will never be a memory," the same quote he used after the last battle in Advent Children, which ironically, his line after losing to Cloud in the said movie. The second is his line before facing Cloud in Shade Impulse, "Fall to your knees and beg for mercy" (lit. On your knees; I want you to beg for forgiveness), right as he is about to slice off the top floors of the Shinra Building. The third line is "Where did you get that strength?" (lit. "Oh, Where did you find this strength?"), which is one of the lines he says when defeated and also ironic, considering that while he says the very same words to mock Cloud in Advent Children, he says it in a weaker tone in this instance. The fourth line is "Good to see you, Cloud" which he said when he appeared before Cloud before their fight. The last line is "If it's despair you want, then I shall provide" (lit. "I've thought of wonderful present for you. Shall I give you despair?"). He says the line to Cloud after he knocks him to the ground, right before Cloud gets back up and they fight. He also uses the line during his EX Burst.
 * Sephiroth's version of Super Nova appears to be primarily based on the more famous North American, PAL and International version of the attack, which begins with the equations seen here, then features a comet impacting into the sun and destroying the solar system. The less famous original Japanese version merely involved a distant explosion with Jupiter and its moons in the foreground.
 * The Black Materia attack is a reference to Sephiroth's grand scheme in Final Fantasy VII. The Materia itself appears in Sephiroth's hand during casting and calls forth Meteor.
 * Sephiroth was featured in the first trailer, emerging from the fissure of magma that would later be revealed to be Chaos. Here, he prepares to face off against the Warrior of Light, standing in front of the magma before a close-up of his face is seen, reminiscent of his infamous scene from the Nibelheim Incident. Three notes, reminiscent of the way his name is said during One Winged Angel, can also be heard.
 * When facing himself in a battle, Sephiroth says "One original is enough", referencing back to the presence of Sephiroth Clones in the original game.
 * “Stop acting as if you were sad.”, one of Sephiroth's victory quotes, references his line to Cloud after murdering Aerith.
 * In the cutscene of Cloud's battle with Sephiroth in Destiny Odyssey VII, several scenes allude to other titles in the Compilation of Final Fantasy VII. The scene where Cloud crosses the Buster Sword over the Masamune is identical to part of Sephiroth's battle with Zack in Crisis Core. After being knocked back, Sephiroth rights himself and knocks Cloud through the air, a reference to their battle in Advent Children. Finally, as the two face off at the end of the scene, the camera angles and poses are identical to their scripted battle at the end of Final Fantasy VII.
 * One of Sephiroth's weapons, Masamune Blade, is the item that can acquired from the Golden Saucer on Final Fantasy VII but has no use whatsoever.
 * Several references to Sephiorth's appearances in the Kingdom Hearts series are present: the attacks "Shadow Flare and "Oblivion", are both based on attacks Sephiroth uses in the Kingdom Hearts series. Sephiroth's quote upon entering EX Mode, "the time has come", is taken from when he uses Meteo in Kingdom Hearts II. During EX Mode, Sephiroth takes on a glowing purple aura as in the final stages of the battles with him in both Kingdom Hearts and Kingdom Hearts II. As well, Sephiroth's fight entrance of descending to the ground with black feathers falling around him is similar to his entrance during his fight with Cloud in Kingdom Hearts: Final Mix.
 * While performing his HP Attack, Hell's Gate, he says the line, "To the Promised Land", reminiscing his objective in Final Fantasy VII.
 * If a Chase Sequence is activated, and the Bravery attack is used, you will notice that the way sephiroth swings his blade is much the same as when he cuts Tifa down in the Nibelheim Reactor.

Trivia

 * Interestingly, Sephiroth is the only Warrior of Chaos who summons his weapon, and does so in a flash of light like the Warriors of Cosmos. The other Warriors of Chaos are never shown summoning their weapons, and typically just carry them around with them.