Protect your head.
If ANYTHING hit your head, you fail.
Mouse gestures to control:
Hold mouse left button and move left and right to change speed;
hold mouse left button and move up to jump.
*jump height depends on the height of mouse you move.
hold mouse left button when landing to slide.
btw you can also control game with WASD/Arrow Keys:
Left/Right to change Speed,Hold Up to jump,down to slide.
but It's hard to control it with keyboard. I do not suggestion you do that.