Complete Form

Complete Form (コンプリートフォーム) is a final form accessed via a K-Touch device first by Decade and then Diend,  utilizing the powers of a group of Kamen Riders, the Nine Heisei Riders in Decade's case and eight Movie Riders in Diend's.

Decade

 * Height: 199cm
 * Weight: 102kg
 * Punching Power: 12t
 * Kicking Power: 16t
 * Maximum Jump Height: 50m
 * Maximum Running Speed: 100m/4

Complete Form (コンプリートフォーム) is the true form of Decade that is able to manipulate the power of other Riders' final forms, accessed through the K-Touch once he regains the powers of all of the Heisei Kamen Riders. Referred to as the "King of the Rider Worlds", he wears the Decade Complete Kamen Ride Card on his helmet, embedded in the Decade Crown, and the others' Kamen Ride Cards on his chest. When Complete Form features the most powerful forms of the Heisei Kamen Riders on the cards (as seen in the Super Adventure DVD, and Movie War 2010), this version of Complete Form is called Strongest Complete Form (最強コンプリートフォーム).
 * Kamen Rider Kuuga (Rising Ultimate Form)
 * Kamen Rider Agito (Shining Form)
 * Kamen Rider Ryuki (Survive)
 * Kamen Rider Faiz (Blaster Form)
 * Kamen Rider Blade (King Form)
 * Kamen Rider Hibiki (Armed Form)
 * Kamen Rider Kabuto (Hyper Form)
 * Kamen Rider Den-O (Climax Form)
 * Kamen Rider Kiva (Emperor Form)

In the novel reimagination Kamen Rider Decade: The World of Tsukasa Kadoya ~The Garden Inside the Lens~, Natsumi creates a Kamen Ride card which Tsukasa as Kamen Rider Decade Cyan Version uses it which summons all 9 Heisei Riders to perform their finisher attacks at Narutaki before they could turn themselves into Rider Cards and attached to Decade into becoming Final Kamen Ride Tsukasa which is a cyan version of Decade Complete Form only without the K-Touch.

Diend
Statistics:
 * Height: 201cm
 * Weight: 107kg
 * Punching power: 14t
 * Kicking power: 16t
 * Maximum jump height: 60m
 * Maximum running speed: 100m/3.5s

In the Kamen Rider × Kamen Rider × Kamen Rider The Movie: Cho-Den-O Trilogy's Episode Yellow: Treasure de End Pirates, Diend gains access to his own Complete Form (コンプリートフォーム), similar to Decade's Complete Form. He wears the Diend Complete Kamen Ride Card on his helmet, embedded in the Diend Crown, and on his chest are 8 Kamen Ride Cards of the main antagonistic movie-exclusive Kamen Riders (as opposed to the previous eight Secondary Riders) from the Heisei Kamen Rider films (excluding those from the Den-O films).
 * Kamen Rider G4
 * Kamen Rider Ryuga
 * Kamen Rider Orga
 * Kamen Rider Glaive
 * Kamen Rider Kabuki
 * Kamen Rider Caucasus
 * Kamen Rider Arc
 * Kamen Rider Skull