Mirai Shounen Conan 2: Taiga Daibouken  

Future Boy Conan 2: River Adventure, 未来少年コナンII　タイガアドベンチャー

An exciting tale revolves around the mysterious "Ooparts Egg" and the colossal stone statue known as "Oobats," which was unearthed from ancient ruins approximately two millennia ago. Along with his father, Dr. Daino, Taiga embarks on a global journey to investigate the enigmatic discoveries made by treasure hunters in South America. There, they stumble upon an enormous stone sculpture of a bird that measures over 50 meters long. The question arises: how was this monument created thousands of years ago? Who were its creators, and what was their purpose behind constructing it? To their astonishment, the colossal bird comes to life and takes flight before their very eyes. They learn that this stone creature is called "Oobats" and possesses an "Ooparts Egg," which makes it a lethal weapon capable of destroying entire universes. The stone bird in the ruins awakens and flies away in search of its precious egg, putting Taiga on a mission to prevent this from happening.