Well okay just to tell you that the main characters of the Kamen Rider W are Shotaro Hidari, Philip, and Akiko Narumi. They live in the city of Futo in Japan. The one who transform into Kamen Rider W are Shotaro Hidari and Philip because Kamen Rider W aka Double is transformation of two person into one kamen rider. The way they transform is that they use Gaia Memory. It is like a USB flash drives, but allow you to transform into monster, which the main villian uses. But for Shotaro and Philip, they use 6 special Gaia memories, and two of them that I can remeber are called Cyclone, the green one and Joker, the black one. To use the Gaia memories in order to turn into Kamen Rider W, they have a device called W Belt, which both Shotaro and Philip have.