You can change the control style by tapping Menu, then Settings, then selecting the controls that best suit your play style.
・ Manual Drift
If enabled, you'll start to drift when you tap the screen and slide left or right.
・ Smart Steering
If enabled, your kart will automatically steer away from the edges of the course.
・ Auto-item
If enabled, the items you have will automatically be used when you break a new item box.
・ Gyro Handling
If enabled, you can steer your kart by tilting your device. This can't be used on devices without a motion sensor.
For other control information, please see the in-game Tips & Tricks in Help and Inquiries.