watch 01:48 The Loop (TV) Do you like this video? This article is about a/an monster in Kamen Rider Den-O. Hydra Liner is the hydra-like train track created by Oct Imagin's tentacle pieces to bring the AuraLiner to life. It was destroyed by KingLiner. Retrieved from "https://kamenrider.fandom.com/wiki/Hydra_Liner?oldid=538630" Categories: Kamen Rider Den-O Monsters Snake Monsters Object Monsters Community content is available under CC-BY-SA unless otherwise noted.