Drive your car around each level collecting the gems, without hitting any obstacles such as walls or rolling boulders. It may sound easy, but you don't have as much control over the car as you think. Once your car starts moving, it continues moving it a straight line until it hits a stop-sign or is redirected by one of several directional road signs. Still sound easy? Well, not all the signs are on the playing field for you. There are several you need to place somewhere on the field yourself, thus planning your trip to pick up the gems and solving the level. Combine this with stop-lights, tunnels and other special objects and multiple worlds and you have an entertaining and challenging game. Comes with 15 tutuorial levels and 30 game levels.