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In power room, complete the puzzle press (1, 2), (2, 2), (2, 3), (2, 4), (3, 3), (4, 3), (3, 2), (3, 1) (It is a co-ordinations represent row and column) Before the battle, collect the .45 handgun bullet in security office. After avoid its first attack, use .45 handgun to shoot to it with 3 bullets to it with close distance. Then run to the end of passage behind the Boss Licker Use second aim, shoot to it with 4 bullets quickly to kill it immediately. (That situation as same as Easy and Normal)
