Publication Information
- Device : Decade Device
- Japanese : 仮面ライダーディケイド
- Type :
- System : Rider Cards
- Usage : Multipurpose & Combat Support
- Users : Tsukasa Kadoya / Kamen Rider Decade
- Season : Kamen Rider Decade
Abilities:
- Reality Alteration (Uncontrollable ): His presence causes all of the A.R. Worlds to merge with one another, though this is not by his own will. This has stopped since his initial death at the hands of Natsumi, and does not seem to continue after his resurrection.
- Resurrection : If people still remember him, he can be resurrected from the dead. As is seen in Decade: Final Chapter.
- Peak Human Physicality/Reflexes : As the former leader of Dai-Shocker, it is presumable that Tsukasa was skilled at fighting even before the start of his series. In fact, it seems that Tsukasa's abilities far surpass a normal human since he defeated two high level Orphnochs in tennis and used a card as a shuriken to cut a chain. In theory, it is possible that Tsukasa may not be a normal human as he was the Great Leader of Dai-Shocker with most of the High Ranking Members being powerful creatures and cyborgs themselves.
- Enhanced Memory : Even after losing his previous memories, he could easily fight against most of the A.R Riders while holding back. By transforming into Decade, he could seemingly use all of the other main Rider's powers (even when he has no idea of how his Rider System and the previous Rider Powers work while not able to use them as effectively or skillfully as the originals) and fight against his former subordinates as well as other monsters.
- Interdimensional Travel : An otherworldly human himself, Tsukasa can travel within worlds via Dimensional walls. However, the downside is that he is unable to take pictures perfectly in the world he resided unless if he is in his true world. Also to be noted is that the people taken by said pictures often suffer in one way or another.
- Nine Worlds abilities : Due to having no real home of his own, whenever Tsukasa travels to another world, he takes on a role within it, granting him different abilities as well as all necessary needs to take on that role (IE clothes, documents etc.). Among these abilities are:
- Gurongi Language Interpretation
- Violin Knowledge
- Mirror World Travel
- Culinary Knowledge
- Lords and Seed of Agito Knowledge
- Clock Up Vision
- Ongekibou empowerment
Equipment
Devices: Weapons:
- Ride Booker
- Rider Weapon of past Kamen Riders accessed through Kamen Ride, Form Ride, and Attack Ride cards:
- Dragreder
- Ongekibou Rekka
- Kabuto Kunai Gun
- Garulu Saber
- Basshaa Magnum
- Dogga Hammer
- Gigant
- Kuuga Gouram
- Kiva Arrow
- Ryuki Dragreder
- Blade Blade
- Faiz Blaster
- Agito Tornador
- Momotaros
- Zecter Kabuto
- Hibiki Ongekiko
- CycloneCyclone and JokerJoker
- Strong Zecter
- Ongekibou Rekka
- Rekka Daizantou
- Decade Bazooka
- Decade Rider Memory
- Decade Rider Medal
- Decade Rider Switch
- Decade Rider Ring
- Decade Lockseed
- Signal Legend Decade
- Decade Ghost Eyecon
- Barcode Warrior Decade Gashat