 This study proposes a serious game rehabilitation system for the training of motor function and coordination of both arm and hand movement. The system uses a multi-sensor fusion model to estimate user's natural upper limb movement, which can then be used to train patients to complete ADLs. This system has been tested on eight healthy subjects and three stroke patients who reported improved ability to perform ADLs after using the system. This article was authored by Sinusong, Shirdi Shankara Vandeven, Lan Lan Lu, and others.