Free fire is an online only battle royal game played in third person perspective. A battle royal match consists of up to 50 players parachuting onto an island in search of weapons and equipment to kill the other players. Players are free to choose their starting point and take weapons and supplies to extent their battle life free fire also known as Garena free fire developed by the Vietnamese game company. The game is changed the behavior pattern among children causes many problems in society and family or friends. The game of free fire violence is realistic among the players. The aim of the study was designed to assess the behavior problems due to free fire game among 12-17years aged students in a selected school at Coimbatore. A descriptive research design consist of 50 samples were included in the study. Non probability convenient sampling technique was used. The technique used was the survey questionnaire method and tool used were rating scale. The study findings revealed that, among the aspects of behavioral problems, majority of students had moderate degree of psychological problem (72%) and Social problem (70%) and nearly half of the student had moderate level of physical problem (46%) due to playing free fire game. The study concluded that majority of student (66%) had moderate behavior problems, (26%) had mild degree of behavior problems, and only (8%) of student had severe degree of behavior problems due to free fire game.