Kamen Rider W is the titular duo of Shotaro Hidari and Philip, who can fuse with each other and transform via the Double Driver (ダブルドライバー, Daburu Doraibā) belts and their own set of purified USB memory-like Gaia Memories (ガイアメモリ, Gaia Memori).[a] Their Double Drivers are linked, such that Philip's consciousness is transferred into Shotaro's body along with the former's Gaia Memory. As such, W's ability to function is dependent on the condition of its components, as any physical or mental disrupt