This article is about a/an object in Kaizoku Sentai Gokaiger.

The Second Greatest Treasure in the Universe was the next target of the Gokaigers after unlocking the Greatest Treasure in the Universe on Earth. Captain Marvelous believed it to be located on the Zangyack homeworld, and the Gokai Galleon left Earth to the Zangyack homeworld a month after they defeated the Space Empire Zangyack and the Emperor Ackdos Gill. Final Ep.: Farewell Space Pirates

Upon arriving at the Zangyack homeworld, the Gokaigers were attacked by a Zangyack remnant led by Bacchus Gill, and were forced to pretend to serve them before teaming up with the Go-Busters. It has not been revealed if they found the Second Greatest Treasure afterwards. Tokumei Sentai Go-Busters vs. Kaizoku Sentai Gokaiger: The Movie