- The goal of the traffic jam game is to find a way out for the white ambulance by shifting the remaining cars to make space for the white car to get out. The exit door is a laser system, you can’t get through if you don’t find the key first. You have to take the white ambulance to find the key first to open the laser door. Be careful because the number of steps and energy level is limited to get you out of the traffic jam. traffic jam game, puzzle game, escape game, ambulance, car, key, laser door, time management, strategy, puzzle, 2D, mobile game, car control, swiping