A huge skyscraper in the middle of the city was under attack by an unknown enemy. They are like extraterrestrial monsters who want to enslave humanity. Your task is not to allow this. Therefore, sit behind the wheel of a fast car and shoot down anyone who comes close to the building. If you step outside the circle of protection, then your car will move more slowly, so try not to let go out of the zone. For the elimination of monsters points are accrued, which can be spent on all sorts of improvements in protecting the building. Use the maneuverability of the machine and then the victory over the invasion in the game Need For Defense is assured to you.