30 patients with brain tumor will be included in the study between the ages of 6 and 18 who have undergone surgery. Patients included in the study will be randomly assigned to two groups. The study group will be included in the Nintendo Wii Fit Plus Balance Game exercise program under the supervision of a physiotherapist for 2 days per week for 8 weeks. The control group will be taken to the conventional exercise program under the supervision of a physiotherapist for 2 days a week, 1 hour a day. The assessments will be made before the exercise program begins and at the end of the 8th week. Patients' physical measurements were assessed by anthropometric evaluations, muscle strength measurement, pain Visual Analogue Scale, walking Observational Walking Analysis, Balanced Pediatric Functional Range Test, Timed Up and Go (TUG) and one foot standing test and Nintendo Wii Fit Plus Balance Assessment, Functional capacity 2 min. With Walking Test, fatigue with PedsQL Multidimensional Fatigue Scale, daily life activities will be evaluated with WeeFIM.