Ecolis: Aoi Umi to Ugoku Shima

Description
Ecolis: Aoi Umi to Ugoku Shima (literally translated as "Ecolis: The Blue Sea and the Moving Island") is the sequel to Ecolis: Save the Forest (known as Eco-Creatures: Save the Forest in North America).
In comparison with the stage-based predecessor, the game has a map consisting of an open sea and several islands, and the protagonist travels them by driving a small moving island which can be customized by player. Player needs to rescue wood spirits and increase number of them, and then command them to fight against enemies.