A device and method for providing physical, occupational, or cognitive therapy to patients which employs video game software manipulated by a game controller and running on a central processing unit such as a computer or video game console. The device and method take advantage of the wide familiarity of patients with the manipulation of game controllers to operate widely sold and popular video games to provide immediate familiarity with the system operation. An interface and software are employed along with body engageable movement tracking components to change the required controller manipulations by the user in the game, to elicit movements predetermined to provide the therapy for the user.