Kamen Riders' Fusion Forms

A Fusion Form combines the powers of a Rider's previous forms into a fused state. This endows them with increased stats of power, speed, and agility.

Kamen Rider Kuuga

 * Kamen Rider Kuuga
 * Ultimate Form (Mighty Form + Dragon Form + Pegasus Form + Titan Form)

Kamen Rider Agito

 * Kamen Rider Agito
 * Trinity Form (Ground Form + Storm Form + Flame Form)

Kamen Rider Den-O

 * Kamen Rider Den-O
 * Climax Form (Sword Form + Rod Form + Ax Form + Gun Form)
 * Super Climax Form (Climax Form + Wing Form)

Kamen Rider Kiva

 * Kamen Rider Kiva
 * DoGaBaKi Form (Kiva Form + Garulu Form + Basshaa Form + Dogga Form)
 * DoGaBaKi Emperor Form (DoGaBaKi Form + Emperor Form)

Kamen Rider OOO

 * Kamen Rider Birth
 * Birth Day (Breast Cannon + Caterpillar Leg + Crane Arm + Cutter Wing + Drill Arm + Shovel Arm)

Kamen Rider Fourze

 * Kamen Rider Fourze
 * Meteor Fusion States (Fourze Cosmic States + Meteor Storm)
 * Meteor Nadeshiko Fusion States (Meteor Fusion States + Kamen Rider Nadeshiko)

Kamen Rider Wizard

 * Kamen Rider Wizard
 * All Dragon (Flame Dragon + Water Dragon + Hurricane Dragon + Land Dragon)
 * Infinity Dragon (All Dragon + Infinity Style)
 * Infinity Dragon Gold (All Dragon + Infinity Dragon)

Kamen Rider Gaim
Gaim=
 * Kamen Rider Gaim
 * Jimber Lemon Arms (Orange Arms + Lemon Energy Armor Part)
 * Jimber Cherry Arms (Orange Arms + Cherry Energy Armor Part)
 * Jimber Peach Arms (Orange Arms + Peach Energy Armor Part)
 * Kiwami Arms (Kachidoki Arms + All 13 standard Armor Parts)

Kamen Rider Drive
Drive=
 * Kamen Rider Drive
 * Type Dead Heat/Deadheat Drive (Kamen Rider Drive + Kamen Rider Mach)
 * Super Dead Heat Drive (Kamen Rider Drive + Mashin Chaser)
 * Type Tridoron (Kamen Rider Drive + Tridoron + Drive Driver)
 * Type Special (Kamen Rider Drive + Future Kamen Rider Drive)

Kamen Rider Ghost
Ghost=
 * Kamen Rider Ghost
 * Grateful Damashii (Kamen Rider Ghost + All 15 Heroic Parka Ghosts)
 * Toucon Houdini Damashii (Kamen Rider Ghost + Machine Hoodie)
 * Heisei Damashii (Kamen Rider Ghost + All 16 Heisei Rider Parka Ghosts)