CCOcean is a VR game made using Unity3D. The purpose of this project is to learn how to make a VR game and build the game into VR devices, such as Oculus Quest 2. During the development of this game, I learned how to use unity's new input system and inverse kinematic system. I developed a VR character and bound the character's hands with VR joysticks. And then, I applied the IK system into character to make each part of the VR character's body reach the desired position when I walk or move my hands. In the future, I plan to continue working on this project for building more interaction between the character and objects in the ocean.