Abstract
Attitude is the most influental factor affecting students’ English learning. Attitude involves three aspects: a) cognitive, b) behavioral, and c) affective aspect. For gamer students, video game is influental for shaping their attitude. Video game effect has five dimensions: a) amount of play, b) content, c) context, d) structure, and e) mechanics. This research uses case study as the research method. To choose the respondents, purposive sampling was used; and seven  gamer students are chosen. Interview and observation were used as the main data collection techniques while questionnaire and document analysis techniques were used as supports. The collected data were analyzed using data reduction, data display, and conclusion drawing techniques. The aims of this research are to: a) identify the way the gamer students play video game viewed from the dimensions of video game effect, and b) unravel the attitudes of the gamer students towards teaching and learning English in terms of cognitive, affective, and behavioral aspects.

Keywords:video game, video game effect dimensions, attitude, case study