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Use the arrows to drive the submarine.
Cool math Hero in the Ocean game is not the exploration. But, it is a rescue. One member has lost the way. And you must find him as soon as possible before he runs out of oxygen. He is standing somewhere under the water to wait for you. Drive the submarine that you have in Hero in the Ocean Logic to the correct position and collect all of the stars that you encounter on the way. Are you ready to embark on the first level? Good luck!