This study investigated students' perceptions of competence and enjoyment of a mobile game within the context of mobile game-based learning. The proposed model showed that perceived competence and game attitude were the main predictors of enjoyment, while no direct relationship was found between perceived competence and gaming achievement. The model simultaneously considered other factors such as prior game experience and intensity of use, and final analysis revealed that these two variables were directly related. Another important finding was the strong impact of prior game experience on perceived competence. Results are interpreted with reference to implications for possible means of improving learning outcomes when using mobile learning games in the academic context.