World of Decade

The World of Decade (ディケイドの世界) is the version of reality that is the true home of Tsukasa Kadoya (Kamen Rider Decade). It is the primary setting of Kamen Rider Decade: All Riders vs. Dai-Shocker. The backdrop used to enter this world depicts an old mansion that is the home of the Kadoya family. This A.R. World is neither one of the Nine Worlds nor the New Worlds. This is the world where Daiki got his first treasure, the Diendriver.

Inhabitants

 * Sayo Kadoya
 * Nobuhiko Tsukikage
 * Joji Yuki

Dai-Shocker members in the World of Decade

 * Kaijin from the Shōwa Kamen Rider Series
 * Shiomaneking
 * Ganikomoru
 * Destron Combatmen
 * Doras
 * Cobra Man Garai


 * Gurongi from Kamen Rider Kuuga
 * Zu-Mebio-Da
 * Me-Bajisu-Ba
 * Me-Ginoga-De
 * Go-Gadoru-Ba


 * Lords from Kamen Rider Agito
 * Leiurus Acutia
 * Formica Pedes
 * Formica Regia


 * Mirror Monsters from Kamen Rider Ryuki
 * Sheerghost
 * Raydragoon
 * Psycorogue


 * Orphnoch from Kamen Rider 555
 * Butterfly Orphnoch
 * Giraffe Orphnoch
 * Longhorn Orphnoch
 * Slug Orphnoch
 * Wild Boar Orphnoch
 * Pelican Orphnoch
 * Stinkbug Orphnoch
 * Arch Orphnoch


 * Undead from Kamen Rider Blade
 * Elephant Undead
 * Giraffa Undead
 * Darkroach


 * Makamou from Kamen Rider Hibiki
 * Kappa
 * Bakeneko
 * Hitotsumi


 * Worms from Kamen Rider Kabuto
 * Coleoptera Worm Aeneus
 * Coleoptera Worm Croceus
 * Coleoptera Worm Argentum
 * Geophilid Worm
 * Subst Worm
 * Cassis Worm Gladius


 * Imagin from Kamen Rider Den-O
 * Albinoleo Imagin
 * Mole Imagin (Axe Hand)
 * Mole Imagin (Drill Hand)
 * Mole Imagin (Cross Hand)


 * Fangire from Kamen Rider Kiva
 * Rat Fangire
 * Sungazer Fangire
 * Bat Fangire
 * Taurus Ballista