A behavior modification device wherein points are accumulated based upon certain behavior, and then the accumulated points can be redeemed for time spent with a multimedia device. A sensor auto determines points to be accumulated, or alternatively, a third party agent (teacher, parent or guardian) can input points observed while a subject is performing certain activities or exhibiting certain behaviors. The points are stored in a device that is positioned in communication with a multimedia device, or alternatively, the storage device can be a wristwatch or other portable device carried by the subject. The subject, when allowing the storage device to communicate with the multimedia device, can operate the multimedia device assuming the storage device contains enough points for operating the multimedia device.