The Replica Xehanorts serve as the penultimate boss of Kingdom Hearts III, facing off against Sora, Donald, and Goofy in Scala ad Caelum. After their defeat, Master Xehanort absorbs them to fashion a suit of Keyblade Armor for himself to fight the party.
In Kingdom Hearts III Re Mind, after Xehanort's armor is destroyed, the Replicas are sent to deal with the Guardians of Light and prevent them from closing Kingdom Hearts. After being momentarily repelled by Mickey Mouse with help from Sora's future self, the Replicas merge into a copy of Armored Xehanort to fight Sora and a revived Kairi, serving as the final boss of the DLC scenario.
Kingdom Hearts III
Kingdom Hearts III Re Mind
Kingdom Hearts III
This battle serves as a prelude for the true battle with Master Xehanort, and as such, is fairly simplistic. The replicas have only a few attacks: Most of them will perform a standard three-hit combo with their weapons, or perform spinning slashes. The replica wielding Xigbar's arrowguns will fire a few lasers or will charge up and fire a large spread of laser arrows. One of the replicas (usually the one with Saix's claymore) will launch Sora into the air, leaving him vulnerable to spin attacks from the others or a spread of arrows.
As the replicas all share the same HP bar, the party only needs to focus on one to win the fight. When attacked enough times, the replicas will teleport away, which forces the party to search the town for them until they reappear. When their HP reaches a certain point, the replicas will perform their desperation attack. They will rise into the air and combine their power to form a giant magic circle that rains down laser beams as the sky darkens. During this attack, the replicas will repeatedly charge at Sora from all sides. The lasers can be avoided with ease, but Trinity Guard can be a great help to defend against their charges. The Nano Arms finisher can be used to deal great damage if Sora is surrounded.
Once the attack ends, the fight resumes as normal. However, the replicas will perform the attack again if enough time passes. So long as Sora remembers to heal when necessary and keeps an eye out for surprise attacks, the replicas will fall with ease.
Kingdom Hearts III Re Mind
The Replica Xehanorts serve as the penultimate boss of the Re Mind scenario, fought by the Guardians of Light. This is a mostly cinematic battle that serves as a prelude to the battle with Armored Xehanort. While the battle is not difficult, caution is recommended as the Guardians cannot heal at all during this fight. They can only attack and evade or defend depending on the character.
The Replica Xehanorts have three attacks: a three-hit combo, a spinning slash, and an overhead slash telegraphed by them glowing red. The Guardians must attack the replicas to fill the situation bar. Once the bar is full, they will be prompted to use the Finish Situation Command to deal the finishing blow to one of the replicas. After enough attacks, the Guardians will be prompted to use powerful cinematic Situation Commands
Occasionally, the Replicas will glow red and attempt to charge at the Guardians from all sides. They can be repelled by a well-timed Reflega to inflict great damage. After enough damage, Riku will be prompted to use the Situation Commands Onrush where he will charge at the Replicas, dodging their attacks with the Quick Dodge Situation Command. He will then use the Dark Divide situation command, firing blasts of dark energy at the Replicas before being forced to defend against them with the Knockback Situation Command, ending the battle.
After the Guardians are defeated, a weakened and injured Mickey must make his way to the Keyhole while fending off the Replica Xehanorts. The Replicas will teleport to Mickey and attack him, but they can be repelled with well-timed attacks. They will also fire lasers from their Keyblades that Mickey can repel with the Pushback Situation Command. If Mickey is knocked down, he can use the Stand Up Situation Command to get up again. As Mickey gets closer to the Keyhole, the Replica Xehanorts' attacks become faster. Eventually the Replica Xehanorts will all fire their lasers at Mickey and he must use the Pushback Situation Command to defend against them until he is prompted to use the Enduring Faith Situation Command to end the battle.
Armored Xehanort is the final boss of the Re Mind scenario, fought by Sora and Kairi. The player has the option to play as either Sora or Kairi. While Kairi does have decent attack speed, she will close in on Xehanort with a Strike Raid and teleportation attack for her combos if she is far away, third-tier magic, the Seven Wishes finish command, Barrier, and the Heart of a Princess Shotlock, her attack power is somewhat poor, she is slower than Sora and her dodge is not as effective either. Regardless of player character, both of them have access to the One Heart Team Attack.
Many of Armored Xehanort's attacks resemble those used in the base game. His attacks have more range and more power because of the 12 No Names he swings telekinetically with each blow. He often conjures pillars of flame beneath Sora and Kairi, indicated by the Recusant's Sigil (a red "X") appearing below them, as well as localized explosions that can suck the party in. He will often use this attack as a reprisal, spawning 2-3 pillars of flames. One of his combos involve him spawning a localized explosion, then following with a spread of fireballs after the explosion, another localized explosion, then three fire pillars. The fire pillars are telegraphed by Recusant's Sigil and Xehanort pointing his left hand towards the ground and the his 12 No Names gathering around it. Xehanort is vulnerable after each of his fire pillars. He can perform a five hit combo with his Keyblades, dash towards the player character, and perform two deadly spinning slashes. All of Xehanort's attacks can be dodged or guarded against. Like in the first Armored Xehanort fight, Xehanort is vulnerable after the last strike in his five-hit combo, after the last strike in his spinning slash combo and if the player guards against his dashing thrust.
After enough damage, Xehanort will create a giant pillar of flame in the center of the arena. During this, he will launch spreads of fireballs from the pillar and occasionally attack them directly. After repeated attacks, he will surround himself in an orb of energy that draws the party in before releasing a huge explosion. While charging this attack, orbs will surround the player character and converge on them. Orbs will also been drawn towards Xehanort that will damage Sora and Kairi. If the attack connects, the player character will be teleported to Xehanort and will be caught in the explosion.
When his health is halfway depleted, his armor will crack and the second phase of the fight will begin. He will use his desperation attack where he uses his No Name copies to summon a barrage of meteors that will proceed to crash into the arena at a slow rate. The meteors can be avoided by taking note of where they land, but Armored Xehanort will still attack during this phase, making dodging somewhat difficult. After the meteors crash, Xehanort will revert to his normal attack pattern, however, his attacks are stronger this phase. He can now conjure the Recusant's Sigil above the player character to slam them to the ground with a pillar of flame, his localized explosions have a stronger suction force, and he can use a new attack where he creates a line of explosions that draws the player character in, after which he follows up with a Rising Spiral attack. He will also gain a new combo where he only dashes once and follows with his five-hit combo. Unlike his dashing thrust in the first phase, Xehanort will not be staggered if you block his dashing attack and the player will need to wait until he finishes his five-hit combo to attack him. As a reprisal, he will either spawn a fire pillar underneath the player or above the player 2 times or in a combo of one localized explosion, one overhead fire pillar, followed by two more overhead fire pillars. His overhead fire pillar is not only telegraphed by flames gathering over the player and the player being pulled up into the air but also by Armored Xehanort raising his left hand up and his 12 No Names gathering around it. Once his HP is depleted to 1, the Connecting Hearts Situation Command will appear. Pressing it will end the fight.