4x4 Madness brings you great physics engine based monster truck racing.Monster truck hill climbing, jumping, massive down-hill racing is now at your finger tips.? Race against your ghost ? OpenFeint global leader boards? GPS Map of the race track? Tilt the device to balance the truckThis version contains the Country Hills 10-track pack and the Crazy Canyon 10-track pack.The Siberian Rally 10-track pack can be optionally added as an In App purchase.