In areas where it snows a lot in winter, the elderly people cannot go out for exercise, so that they have a loss of motor ability and high risk of falling. The falling is one of the causes of bedridden state. In order to solve this issue, we develop a system which can facilitate indoor exercises for the elderly people. In this system, we use compact-size mobile robot equipped with camera and virtual reality game for the exercise motivation. In this paper, we introduce what types of device are combined in order to construct the exercise system.