This is a marvelous game of crossfire acting like a police officer shooting those enemies to protect the civilians. In this game compared from any police games, you can feel the thrill of firing and shooting every opponent that attacks the bus. You need to guard it from the bullets and make sure that those gangsters cannot blast off the bus. Every time you finish every opponent, you can get the opportunity to have another weapon that you can use to guard the bus and to gain more points. The more points you have, the more chance you have to repair the bus, heal the guard and get more weapons.