I loved this game at first but quickly noticed some bugs which have only gotten worse overtime. Game keeps glitching and lagging during play, it says I've missed a beat when I haven't, and there's a swipe up beat in one song, always the same one, that never registers when I swipe it so I keep losing my streak midway on the same exact song each time. Its also a waste of time waiting 3h or more to unlock 3 cards when you can unlock 2 after watching one ad - rewards aren't well balanced