|This article is about a/an plot device in Kaizoku Sentai Gokaiger.|
The Ultimate Treasure in the Universe (宇宙最高のお宝 Uchū Saikō no Otakara?) is the Kamen Rider universe's equivalent of the Super Sentai universe's Greatest Treasure in the Universe. Kamen Rider X Super Sentai: Super Hero Taisen showed Emperor Marvelous leading a collection of past villains, DaiZangyack, to claim the Greater Power of the Kamen Riders and gain the greatest treasure of their universe. At end of the movie, it is revealed that friendship between Rider and Sentai is supposed to be the Ultimate Treasure in the Universe.