The latest researches have adopted software technology turning the Nintendo Wii Balance Board into a high performance standing location detector. This study extended Wii Balance Board functionality to assess whether two people with developmental disabilities would be able to actively perform designated physical activities according to simple instructions by controlling their favorite environmental stimulation using Nintendo Wii Balance Boards. This study was carried out according to an A–B–A–B design. Data showed that both participants significantly increased their target response (performing a designated physical activity) by activating the control system to produce their preferred environmental stimulation during the intervention phases.