Ryuki World {リュキワールドRyukiwārudo} is an Alternate World of Sonic Boom Based in Kamen Rider Ryuki where Sonic and his Friends they Transform into Kamen Rider with Card Decks To fight with monsters called Mirror Monsters and with Shadow who Transform into Kamen Rider Ryuga in this World the Characters have Alternate Names
Characters[]
| Kamen Rider Ryuki | Sonic Kido |
| Kamen Rider Knight | Tails Akiyama |
| Kamen Rider Zolda | Knuckles Kitaoka |
| Kamen Rider Raia | Sticks Tezuka |
| Kamen Rider Femme | Amy Kirishima |
| Kamen Rider Ryuga | Dark Shadow |
| Kamen Rider Tiger | Zooey Tojo |
| Kamen Rider Imperer | Vector Sano |
Contract Monsters[]
Dragreder
Darkwing
Magnugiga
Evildiver
Blancwing
Dragblacker
Destwilder
Gigazelle
Megazelle
Omegazelle
Mirror Monsters[]
Wiskraken
Buzzstinger Wasp
Deadlemur
Wildboarder
Zenobiter
Zebraskull Iron
GuldThunder
Dispider
Abysshammer
Gallery[]
Sonic Kido
Sonic Kido As Ryuki
Sonic Kido's Contract Monster (Dragreder)
Tails Akiyama
Tails Akiyama As Knight
Tails Akiyama's Contract Monster (Darkwing)
Knuckles Kitaoka
Knuckles Kitaoka As Zolda
Knuckles Kitaoka's Contract Monster (Magnugiga)
Sticks Tezuka
Sticks Tezuka As Raia
Sticks Tezuka's Contract Monster (Evildiver)
Amy Kirishima
Amy Kirishima As Femme
Amy Kirishima's Contract Monster (Blancwing)
Dark Shadow
Dark Shadow As Ryuga
Dark Shadow's Contract Monster (Dragblacker)
Zooey Tojo
Zooey Tojo As Tiger
Zooey Tojo's Contract Monster (Destwilder)
Vector Sano
Vector Sano As Imperer
Vector Sano's First Contract Monster (Gigazelle)
Vector Sano's Second Contract Monster (Megazelle)
Vector Sano's Third Contract Monster (Omegazelle)