Quote from the CrackBerry review going through the controls and gameplay
"Controlling your character is simple. E.X.O. automatically moves forward, to avoid obstacles tap on the right side of the screen to jump. Double-tapping makes the character jump higher. To shoot at enemies use the onscreen target icon on the bottom left. You'll find another icon just above that which has multiple functions. It can boost your forward or it can lock your character in a floating/hover position. To do the latter just tap jump first then this arrow icon to lock your character in that position. Press the icon again to drop down from hovering. Whenever you perform an action you lose energy. You can see your energy bar at the top. Collect orbs along your path to restore energy levels. All-in-all, E.X.O. is a fun and challenging game to play."