Kinect based somatosensory exergame is useful to support long-term care as it can motivate chronic rehabilitation patients or elderly with decreasing motor ability to do physical exercise in a pleasant and interesting gaming environment. Dynamic game difficulty adjustment (DDA) technique is implemented in all games to keep players engaged and adhered to the game. For long-term care service, game difficulty has to be manually adjusted as players are not able to or not willing to adjust game settings by themselves. To support manually difficulty adjustment, it is important to conduct player experience study to understand the impact of different game settings or gaming parameters on game difficulty. This paper evaluates the dif-ficulty of a Kinect exergame using objective player experiences derived from Kinect sensor and gameplay based player experience. Specifically, a Kinect exergame for upper arm exercise is developed and deployed to a nursing center at central Taiwan. The challenge (psychological difficulty) and intensity (physiological difficulty) of the game are analyzed using hand movement speed derived from Kinect sensor (objective player experience) and game score (gameplay based experi-ence). The results show that the objective player experience derived from Kinect sensor can help understand the exergame intensity. With cross reference to game performance, subjects who are more engaged in the exergame can be identified.