Hilly.io is a classic racing game which is free for you to play against multiple online rivals all over the world. Your mission is to jump over as many hills as possible. You will have to compete with other players and you should surpass them to dominate the leaderboard. So, you are forced to move faster than those people to become the winner. Remember to choose how to land smoothly after you hop! It is also a way to overcome the obstacle. Good luck!