Fallen Leaves Mask was sent with the Zolder Ninja corp as a diversionary tactic to delay the Gorengers from assisting Shinmei and Kumano after Varidreen was brought down by a Battler and to prevent them from reaching the invasive Black Cross Castle as it destroys a major section of Tokyo. During an initial battle, the Gorenger have a hard time dealing with him and the Black Cross ninjas, allowing for him to set up a bomb that would seal off the disabled Varidreen forever within a cave; however the ship is ultimately saved due to the claw attachments on Varitank to dig it out. When the Gorengers decide to invade Black Cross Castle by themselves without even Varitank and merely with the New Gorenger Machines, the Masked Monster meets with them, eluding with his leaf dispersal until Shinmei f