Editing Riku

Riku continues to ally himself with DiZ, as they have a common goal: to help Sora awaken (though Riku finds his memories of Sora fading, being a side-effect of Naminé's toying with Sora's memories). Roxas's memory is erased by DiZ and he is placed into [[The Other Twilight Town]], to live out his days until the time comes for him to meet Sora. Meanwhile, Riku watches over Roxas, periodically entering the town in order to keep Roxas ignorant to the truth, including keeping Naminé from saying anything important to Roxas. He also takes some keepsakes of Roxas's during some of his visits. With all these deeds done, Riku finally demands to know what DiZ's true objective is. Upon hearing that it is merely revenge (DiZ does not disclose against whom it is), Riku clenches his fist, shocked and disgusted at how DiZ is merely using him and Sora for his own selfish reasons.

[[File:Versus Riku-Ansem KHII.png|thumb|200px|A hooded Riku confronts Sora in The Land of Dragons.]]

However, once all the seven [[Sleeping Keyhole]]s in the Dreaming Realm are sealed, Sora ends up trapped in sleep in [[The World that Never Was]], and Riku rushes to his rescue upon realizing this. He finds Sora in a comatose state inside the Castle, his heart having been damaged by Xemnas and the young man himself. The young man turns out to be an incarnation of Master Xehanort in his youth, who has been traveling to different periods in time to recruit several other incarnations of Xehanort together. Riku attempts to awaken Sora, but the darkness from Sora's nightmare turns into the [[Anti Black Coat]] that engages Riku. Riku manages to defeat the Anti Black Coat and carries on through the castle, eventually coming face to face with Ansem. Ansem reveals that Riku is actually a [[Dream Eater]], and, over the course of the exam, has been purifying Sora's dreams of [[Nightmare]]s. Ansem attempts to take over Riku's body again, but remembering his secret encounter with Terra, Riku resolves to make his inner darkness his own power for good and make Ansem become part of his light. Then the two battle each other once more. Ultimately, Riku prevails and eventually makes his way to the true Sleeping Worlds version of Where Nothing Gathers, where he finds Sora on an Organization XIII throne. [[Young Xehanort]] blocks Riku's way, but Mickey comes to Riku's aid by casting a [[Stopza]] spell. Young Xehanort, however, is unaffected by the spell and knocks Mickey aside to battle Riku. After a fierce struggle, Riku defeats Young Xehanort. However, the victory is short-lived, as Master Xehanort is finally revived and joined by the rest of his new Organization, among them are Young Xehanort, Ansem, and Xemnas.

As a playable character, Riku has limited options in term of abilities as his default form only allows the use of his [[Soul Eater]] card. This form of attack is slow and sluggish however it deals a heavy amount of damage, especially when combos are used. Stocking attack cards together can let Riku perform a slightly quicker combo. By using [[King Mickey]]'s friend card, Riku can restore his HP with the [[MM Miracle]] ability, which can be empowered by stocking multiple Mickey cards together. Other perks Riku has access to include [[Potion]]s, [[Hi-Potion]]s, and [[enemy card]]s. Instead of [[Dodge Roll]], Riku has access to a sluggish tumble in [[High-Speed Step]].

After accumulating enough [[DP]] on the [[DP Gauge]], Riku enters [[Dark Mode]], where he is faster, stronger and capable of using an array of special abilities. His regular combo is heavily upgraded as his combo finisher has the opportunity to stun enemies. His High-Speed Step becomes a clean dash. Most importantly, Riku has the ability to use three new sleights in Dark Mode by stocking together three attack cards. The sleight chosen depends on the sum of the card values. The lowest value sleight, [[Dark Break]], causes Riku to leap into the air and attack enemies from above. [[Dark Firaga]] shoots a bolt of dark energy at an enemy. Lastly, [[Dark Aura]], a sleight requiring the max value of 27, allows Riku to rush enemies repeatedly from all directions and then release a mass of dark energy at the end.

He has access to some of the most useful support abilities, such as [[MP Hastega]], [[Second Chance]], and [[Once More]], in addition to ones with more miscellaneous effects, such as [[Item Boost]], [[Defender]], {{c|Auto Limit|support ability}}, and [[Hyper Healing]].

|'''{{c|Auto Limit|support ability}}'''

Riku is briefly playable after completing [[Olympus]] and once more after completing [[The Caribbean]] and [[San Fransokyo]]. Both times, he faces against a Demon Tower. Riku's stats closely correspond to Sora's stats at Level 65, and are equal to Aqua's. He has access to Thundaga and Curaga for magic and has a single Hi-Potion and Ether, although they replenish between battles. Riku does not have access to Shotlocks (except in ''Kingdom Hearts III Re Mind'') or Formchanges. Riku attacks swiftly and many of his attacks are wide and are performed with a 360° turn.

During the first fight, he wields his [[Way to the Dawn]] Keyblade. His guard is a joint barrier with Mickey, which can be followed with a joint Counter Blast. During this fight, Riku's finisher is called [[Double Duel]]. When performing this move, Riku and Mickey both perform a buzzsaw move similar to [[Shadowbreaker]]. In the second fight, Riku wields the [[Braveheart]] Keyblade, and his unique finisher is [[Dark Firaga]], which performs identically to its ''[[Kingdom Hearts 3D: Dream Drop Distance]]'' appearance.

{{frm-atk|{{nihongo|'''3-Part Diagonal Ground Swing'''|地上斜め3回振り|<br>Chijō Naname 3-kai Furi}}|att|Physical|0.3+0.3+1.0|2+2+8|0+0+1|0.3+0.3+1|X{{note|O for final hit}}|—|—|Ground combo finisher. The last hit launches struck enemies skyward.}}

{{frm-atk|{{nihongo|'''5-Part Diagonal Aerial Swing'''|空中斜め5回振り|<br>Kūchū Naname 5-kai Furi}}|att|Physical|0.3(x4)+1.0|2(x4)+8|0(x4)+1|0.3(x4)+1|X{{note|O for final hit}}|—|—|Air combo finisher. The last hit knocks struck enemies back to the ground.}}