The great archaeologist Dr. Jones has been studying a mystery on C-Island in the southern seas. His nephew, Mike Jones, comes to visit him in the village of Coralcola, but Dr. Jones has vanished. Mike must now cross the southern seas, searching for clues about his uncle's disappearance, and the sudden arrival of monsters around C-Island.
Armed at first with only a powerful yo-yo, you must delve into the dark caves of the southern sea islands and save Mike's uncle. Along the way you will find more weapons, a variety of monsters, huge boss monsters, and puzzling traps.
