Dark Mode

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Dark Mode is a special form Riku can transform into in Kingdom Hearts and Kingdom Hearts: Chain of Memories. Riku initially receives this ability from Maleficent, and uses it against Sora after Sora reclaims the Keyblade, but loses it after his body is taken by Ansem.

After entering Castle Oblivion, Ansem manipulates the darkness in Riku's heart, giving Riku the ability to use Dark Mode freely. In this form, Riku can use his darkness without the worry of being taken over by Ansem. Because Riku is so darkness-oriented, this form gives him a substantial advantage in battle, such as increased speed and feeding the Soul Eater's unique power-up ability with the power of Darkness. Riku Replica can embrace the darkness willingly, therefore he can also use and stay in Dark Mode.

Vanitas, a main antagonist of Kingdom Hearts Birth by Sleep, and Vanitas Remnant, wear a bodysuit similar to the one Riku wears while in Dark Mode. While under Vanitas's possession, Ventus also wears this suit. The reason for the similarity in Riku's and Vanitas's outfits is never explained.

Journal Entries

Kingdom Hearts

Riku gained immense power through the forces of darkness. But ordinary humans are no match for the darkness, and it is gradually consuming his heart.

Story

Kingdom Hearts

Riku wields the Keyblade of People's Hearts under Ansem's possession

The darkness will destroy you.

Riku upon entering Dark Mode for the first time

After coming into the service of Maleficent, Riku's heart began to be weakened by his continual use of the darkness, so the witch granted him power over it, allowing him to control Heartless and enter Dark Mode. Riku used this power to subdue Sora on Captain Hook's ship with his own shadow and fight off the Beast when he arrived at Hollow Bastion.

When challenged later by Sora, he mocks him, entering Dark Mode for the first time. However, the strength of Sora's heart soared, his friends Donald and Goofy, and his weapon returned to him, which defeated Riku.

Riku fled injured and severely weakened through a Corridor of Darkness back into the heart of the castle, where he reverted to his normal form. There, he met a hooded Ansem, who persuaded Riku to open his heart to darkness. The enigma possessed Riku, and used his body, now permanently in Dark Mode. In this mode, he created and wielded the Keyblade of People's Hearts, which he used to unlock Maleficent's true darkness.

He waited and watched as Maleficent fell at Sora's hand, allowing Ansem to claim Kingdom Hearts as his own. All he needed was the heart of the last Princess of Heart, which resided within Sora. He attacked the Keyblade wielder, but was defeated. Riku used the last of his strength to fend off Ansem as Sora released his own heart to free Kairi's heart.

Riku's heart and soul were forced into the Realm of Darkness, and Ansem took full control of his body. He entered the Door to Darkness to the End of the World, awaiting Sora. There, he did away with the form of Riku's Dark Mode, revealing his true appearance. From this point forward, Dark Mode was lost to Riku.

Kingdom Hearts: Chain of Memories

I know who I am!

Riku in Dark Mode after battling Zexion, no longer fearing the darkness

File:RIKUREPLICAMODE.gif

Riku Replica entering Dark Mode

After his re-encounter with Ansem in Castle Oblivion, Ansem tampered with Riku's darkness, activating Dark Mode once again. Riku would utilize this form as he struggled in the card worlds. He would change into Dark Mode sparingly, a massive fear of the darkness manifesting in the depths of his heart, much to Ansem's displeasure.

Soon Ansem wasn't the only one who sought to claim Riku as Vexen, Lexaeus, and Zexion, members of the Organization, wished to use the boy and his dark powers to halt the plans of the traitorous Marluxia. When Vexen challenged Riku, it was his immense power that led to the creation of the Riku Replica, an aggressive replica of Riku created by Vexen from the boy's combat data. Ansem seized the Replica as an opportunity to use it as a model for Riku, urging him not to fear the dark like the fake.

Eventually Riku came before Lexaeus. A battle ensued between the two, Ansem possessing Riku's body in order to do away with the Nobody. Riku's sudden recollection of Ansem's control almost allowed Ansem complete control over his body. Were it not for King Mickey, Ansem's plan to get Riku back under his control would have succeeded.

After the failures of both Vexen and Lexaeus, Zexion was forced to take action and tormented Riku with illusions in the Destiny Islands card world, taking on the guise of Sora and swallowing Riku in the light. It was here that Naminé appeared in the form of Kairi, teaching Riku not to fear the darkness and not to run from the light. Riku then regained himself, controlling and transforming into Dark Mode willingly in order to defeat Zexion. Riku no longer feared the darkness from this point forward.

In the Twilight Town card world, Riku was approached by DiZ, the bandage-faced man telling him to seek out Naminé. He battled his replica a final time, meeting up with Naminé at last. She offered to put him to sleep so she could lock his heart, freeing him from Ansem and the consequences Ansem had on Riku's heart. Riku refused, needing his power to finish Ansem for himself. It was then Riku headed towards his final battle.

Kingdom Hearts II

Riku's Dark Mode was shown in Roxas's dreams in the beginning of the game.

Kingdom Hearts coded

Jiminy's Journal has been shown using Dark Mode while in its Riku form. Also, while fighting Data-Sora, Data-Riku turns into Dark Mode, and can even use characteristic abilities of this form, such as Dark Aura and Dark Shield.

Kingdom Hearts III

Riku Replica uses the power of Dark Mode against the real Riku.

Appearance

In Kingdom Hearts: Chain of Memories, when Riku activates this form, a blue aura surrounds him, he jumps into the air and shouts, "Darkness!". A bright blue light shoots out of his chest, and in a flash of light, his clothes transform into the same suit he wore while possessed by Ansem in Kingdom Hearts. This consists of a form-fitting suit that appears to be made of black muscle tissue.

The black fades to red around the wrists and comes with purple gloves that are tucked under the suit. The suit has a purple-blue color on the chest and part of the torso with the Heartless emblem on the chest. It has purple feet and shins that fade into black legs. It has a dark purple belt and a cloth around his waist, opening in the front. The cloth is an off-white color that fades into dark purple and is ripped all around at the bottom.

In Kingdom Hearts Birth by Sleep Vanitas's suit is colored in various shades of blacks and reds rather than blacks and violets, a distorted version of the Unversed insignia appearing on Vanitas's chest rather than the Heartless insignia-like emblem that appears on Riku's while in Dark Mode. Vanitas's Remnant uses the same suit but in black and white instead of black and red.

Vanitas's suit

Ventus-Vanitas's suit

Vanitas Remnant's suit

Abilities

In Kingdom Hearts: Chain of Memories, since Riku is a playable character, he has a specific move set while in Dark Mode. It should be noted that Dark Mode is only triggered when the player manages to fill up the Dark Points gauge up to 30. Once Riku is in Dark Mode, he can use it for an indefinite period of time, but he loses a certain amount of Dark Points if he receives damage.

He also loses Dark Points when his card is broken, the number of lost Dark Points depending on the difference between his card and the card used to break it. So if Riku takes out a 2 card and the enemy takes out a 9, Riku loses 7 DP. When his Dark Points go back to zero, Riku reverts back to his normal form.

While in Dark Mode, Riku has increased speed, can utilize Sleights, and his Soul Eater reacts to the darkness, increasing in power. His three-hit combo has the power to stun with the second hit, flames bursting from the Soul Eater upon the combo finisher. Riku possesses an aerial spin-slash, also able to double-jump behind an enemy, as well as a dash very similar to Sora's Quick Run. While under the possession of Ansem, Riku has access to almost all of his dark powers, including a few new abilities such as a dark version of Strike Raid.

Attack Sleights

Ability	Description	Requirements
Dark Break	Leap into the air and attack enemies from above. Only available in Dark Mode. In Re:Chain of Memories, press when it flashes on-screen to add an attack. Pressing when it isn't on-screen will cancel the sleight.	+ + (5-15)
Dark Firaga	Expel dark energy in a searing blast. Only available in Dark Mode. This attack is dark-elemental, not fire-elemental.	+ + (16-25)
Dark Aura	Rush enemies repeatedly with blade in hand. Finish off by stabbing Soul Eater into the ground for a column of light that confuses the enemy. Only available in Dark Mode.	+ + (27)

Friend Sleights

Ability	Description	Requirements
MM Miracle Lv2	The King restores HP, and stuns and deals damage to all enemies, and reloads cards.	+
MM Miracle Lv3	The King restores a lot of HP, and stuns and deals damage to all enemies, and reloads cards.	+ +
Inverse Burst	Multiple shots with your back against the King's. Enemies become confused when hit. Use the left analog stick to control the direction of the tornado. Only available in Dark Mode. (Re:CoM)	+ +

Duel Sleights

Ability	Description	Requirements
Dark Impulse	Knock foes into the air before a hard slam down to the ground, damaging multiple enemies. Only available in Dark Mode. (Re:CoM)	Win a duel that requires you to break three cards.
Dark Maelstrom	Unleash a powerful spinning attack on the enemy. Damage is concentrated to one enemy. Only available in Dark Mode. (Re:CoM)	Win a duel that requires you to break five cards.
Dark Barrage	Throw multiple Soul Eaters towards the enemy. Damage is concentrated to one enemy. Only available in Dark Mode. (Re:CoM)	Win a duel that requires you to break seven cards.

Boss

During the first battle with Riku's Dark Mode in Kingdom Hearts, he uses supreme agility to jump far distances, either away from or to your location. While you are in close range, he will attempt a powerful spin-slash. He uses a single-hit slash which closes in far gaps, also able to deal immense damage. Magic has no effect, so the player must rely solely on the Keyblade. Jars can be found on the sides of the battlefield which contain HP Balls and Hi-Potions.

When tackling a possessed Riku, whom wields Dark Mode to its maximum potential via Ansem, one must take extreme caution. Riku will dodge almost every hit, attacking with just as much speed. Guard and retaliate immediately afterwards. Depending on what attack is blocked, a certain number of Tech Points may be earned. Beware that when Riku's HP starts to dwindle, he summons the power of darkness to unleash a series of dangerous desperation attacks. Again, magic has no effect, the Keyblade and its abilities the player's only chance of survival.

When fighting the Riku Replica in Kingdom Hearts: Chain of Memories, it attacks with a two-hit combo that stuns on the second hit. It also uses a jump-attack that causes flames to burst from the Soul Eater. Over the series of four battles, the Riku Replica gains access to Sleights, each very powerful and threatening to the player's HP Bar.