Watch this prehistoric giant turtle trash anything and everything in this monster mash collection! Gammera the Invincible: After a nuclear blast over the Arctic awakens Gammera from his million-year hibernation, the giant prehistoric turtle rampages toward Japan on a path of destruction! War of the Monsters: Gammera battles for the fate of the Japan with the powerful Barugon, a huge lizard-like monster that can freeze foes with its long tongue. Plus, Return of the Giant Monsters, Destroy All Planets, Attack of the Monsters, and Gamera Vs. Monster X.