The defense of the city has started! They are coming and they protest! Draw the defense line now! You need to protect the crowded city from take over and make crowd control! Police officer, call all the soldiers for help, clone armies really fast, let's be cops, push em all and stop this riot madness and establish one mob control and base defense of the city!
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Playing city defense 2 free online game support all smartphones or tablets, such as iPhone, iPad, Samsung and other Apple and android system.