In this study the clinical relevance of the use of commercially available virtual reality games in the rehabilitation of balance will be assessed in children with cerebral palsy. It will be investigated how different commercially available platforms (i.e. Xbox One + Kinect and Nintendo Wii + balance board) will affect the compensations of children with cerebral palsy to preserve their balance. The effect of 1 training session will be assessed as well as the effect of a long-term training of 8 weeks.