Hilly.io is a multiplayer online game that is full of fun. You will play with many players to compete for the championship. An acceleration opportunity will be obtained each time your ball passes an endpoint. Hold the left mouse to dive or speed, release it to fly. Of course, use the space bar can do the same operation. Do you have the confidence to be the best? Good luck and have fun!

How to play: Use the mouse or spacebar to play.