Brainz - great online survive game. Your mission in this bloody zombie killing online game is to blast as many zombies as you can before they get you. The game features varying zombie types, each with their own strengths and weaknesses. You earn money for each zombie you put down. You can use your hard earned money between rounds to purchase more than 20 different weapons. Use "W", "A", "S" , "D" KEYS to move, and use your mouse to aim and Left Mouse Button to shoot.