Based on the work by Jules Verne, Return To Mysterious Island 2 is, quite obviously, the sequel to Return To Mysterious Island. It was released in 2004 and received mixed reviews, but was apparently popular enough to warrant a sequel, albeit five years after the fact.
Last time, we left the series' star, Mina, in a helicopter as she was getting ready to leave the island. Something obviously went wrong as she is now back where she started, only this time, she adopts a pet monkey named Jep, who acts as a second playable character. The game's cover makes a big deal out of it, as it is supposed to open possibilities that are entirely new to the adventure genre.