There is a bomb on your car and your life is in trouble. You don't want to park it somewhere near the city because the bomb will surely kill lots of people. Your only choice is to drive the car out of the city and into the waiting bomb squad. The bomb squad can deal with the bomb, but their vehicle is wreck up so you need to drive it close to the bomb squad. The car moves on its own, so you don't need to drive it. You just need to balance it all the time so that the bomb won't explode. Collect more time you the bomb timer doesn't goes to zero. If that happens then the bomb explode.