Those evil vehicles are causing trouble again! Get rid of the black vehicles with police cars, ambulances and fire trucks. Click on an emergency vehicle to drive it, and click on it again to stop it. Each emergency vehicle has a unique ability, which can be activated by clicking on the POWER button and then clicking on the vehicle. Police cars have the ability to make U-turns, ambulances can jump, and fire trucks have rocket engines that can be activated. Don't let any emergency vehicles fall off the screen. In some levels, you'll be required to park the vehicles in highlighted areas.