A new IO game comes to our website so you can have fun competing with other players around the world. Hilly is an online multiplayer game in which you will have to fight to place yourself in first position before the time runs out. For this, we will use the mouse of our PC and we will explain simply how. Press the left mouse button to start the race and release at the end of one of the mountains to fly through the air and get as far as possible. While you are in the air you can press the same button again so that it will lower with more strength and be able to take the next mountain with more power and speed. Collect gems to get improvements and fight in these fun races with hilly. Io. Enjoy the game Hilly IO, it's free, it's one of our .io games we've selected.