The World of the Rider War is the iteration of reality where the Rider War takes place and is the reality that is the confluence of the Nine Worlds. The backdrop used to enter this world depicts all nine of the Heisei Riders:
- Kamen Rider Kuuga
- Kamen Rider Agito
- Kamen Rider Ryuki
- Kamen Rider 555
- Kamen Rider Blade
- Kamen Rider Hibiki
- Kamen Rider Kabuto
- Kamen Rider Den-O
- Kamen Rider Kiva
Kamen Rider G
- "Stand up!" "The Rider who fights for love:" "G!" ― Kuuga, Ryuki, and the other Heisei Riders' words of encouragement
Dimensional wall
The dimensional walls are the doorways between the A.R. Worlds in Kamen Rider Decade. They also appeared when the main characters (mostly Decade, DiEnd, and Narutaki) returned in Kamen Rider × Super Sentai: Super Hero Taisen, Wizards last episode, and Gaims Super Hero Taisen shows (ToQger vs. Kamen Rider Gaim TV special, and it's movie sequel, Kamen Rider Taisen.
Users
- Narutaki
- Tsukasa Kadoya
- Daiki Kaito