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Totally Mayhem Steam CD Key Complete missions, shoot with many weapons(pistol, shootgun, missile launcher, grenades). Each mission is unique, in some you will have to kill a number of enemies or a number of enemies vehicles, in some others you will have to kill a boss, in others you will have to race. You can drive cars, taxis, helicopters, vans, airplanes, many other vehicle types, shoot from turrets etc..