This thesis documents a comparative study of virtual reality and augmented reality in the context of training games for myoelectric prosthetics. The motivation is that a meaningful number of amputees abandon their myoelectric prosthetic in part be-cause they lack the motivation to train, which makes them unable to control it efficiently. Recent studies show a potential in utilizing aug-mented reality techniques in this context, but so far it remains uncer-tain that it provides a benefit when compared to more traditional virtual reality techniques. A prototype game based on the classic arcade game What-A-Mole supporting both techniques was implemented and tested on 10 able-bodied subjects and evaluated using the intrinsic motivation inventory questionnaire. The results from the test show no significant difference between the two techniques in any of the measured parameters.