Final Fantasy: Legend of the Crystals

While being imprisoned by the pirates on Rouge Island, Prettz, Linaly and Valkus encountered a ghost boy from 200 years ago who appeared from the Crystal of the Wind and told them about Deathgyunos and their attempt to conquer the universe. Having already won the Crystals of Earth, Water and Fire the enemy attacked them on Rouge Island to try and take the Crystal of the Wind. With Prettz's effort, they barely escaped the crisis and the pirates' Rouge Island dissipated into the ocean...