This is a feature I had long forgotten even existed. System Music This is the feature that lets you keep playing and listening to the Music App on the Vita while you're inside and playing a game. Sometimes, musics clash and you need to turn one off, but it's still there. Not all games support it, however. I have just tried and confirmed that it does not work with LEGO Marvel Super Heroes and Tearaway, but there are other titles where the feature does work. Have you ever used the feature while playing a game, to listen to your favorite MP3s while in the middle of a heated battle or grind session?