Slope Extra is a great ball rolling game and you have to avoid obstacles on sloping ramps. This game is a great endless ball rolling game. You control a rolling ball and it keeps accelerating. You try to go the farthest distance without hitting the obstacles and you will encounter new obstacles.
PC:
The ball follows the mouse. So move the mouse right and left.
MOBILE:
You can steer the ball by swiping with your finger.