PC:

The ball follows the mouse. So move the mouse right ad left.

MOBILE:

You ca steer the ball by swipig with your figer.

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.

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL