Time Travel

Time travel is the process of travelling through time which features in many Kamen Rider series.

Hyper Zecter
In Kamen Rider Kabuto, Kamen Riders transformed into Hyper Form using Hyper Zecter can move faster than light, therefore can travel into past. Hyper Zecter itself are also capable of travelling through time.

Time Traveling Trains
DenLiner, Zero-Liner, New DenLiner, Ghost Train, GaohLiner, Nega DenLiner, as well as KingLiner can be used to travel through the time stream.

Imagin Contracts
After fulfilling the contract, the Imagins can open their client's body to go into the past.

Castle Doran
Castle Doran can open a Time Door to summon or send any person from or into any moment in the past. Castle Doran itself can enter the time stream.

Time Vent
In World of Ryuki, the card Time Vent allows its user send himself or someone else back in time.

Time Ring
Kamen Rider Wizard can use Time Ring to open a time portal that connect to another point in time.

Other cases

 * The space-time police force in Kamen Rider × Kamen Rider × Kamen Rider The Movie: Cho-Den-O Trilogy Episode Yellow has their own method of time-travelling.
 * Gara's device can manipulate space-time of a targeted area.
 * Eel has ability to time-travel.
 * In Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z, Saburo Kazeta somehow travel back in time to help his future teacher.