The controls in iDerby are a mixture of tilt and touch. The tilt controls are used for position of the horse on the track. To navigate around the opponents, and to block the inner position near the rails you simply tilt the iPhone. The touch controls are limited to two buttons: whip and hold. A meter in the middle of the lower part of the screen shows the stamina of the horse. To speed up you touch whip, but that of course takes a chunk of stamina away. To quickly rebuild stamina you touch hold, which slows the speed to allow the horse some rest. If you don't do anything at all the horse keeps running at a pace that slowly rebuilds the stamina.