The Transformation Belt Lostdriver (変身ベルト ロストドライバー, Henshin Beruto Rosuto Doraibā) is a 2nd Generation Memory Driver used by Sokichi Narumi, Katsumi Daido, and Shotaro Hidari to transform into Kamen Riders Skull, Eternal, and Joker respectively. Due to using refined Gaia Memories that retain their form rather than being absorbed into the user's body, the user is completely shielded from its corrupting effects. This comes at the cost of the Gaia Memory's power being further weakened except for du