As you begin your run, obstacles will come at you faster and faster. Tap or swipe up and down to change lanes or tap the right side of your screen to jump over obstacles. The longer you go, the harder it gets. To reward better scores, you get a coin multiplier that increases amounts of newly obtained coins.
In the settings you can choose between methods of changing lanes. These are swiping, tapping arrows, and tapping with no visible arrows if they obstruct your view.