Half the time taps register late or not at all. Had to screen record to make sure I wasn't crazy. Also it's ridiculous you can only play a few songs before being locked out for 10 hours. This is how you make people forget your game is even on their phone. It's frustrating enough you can't miss a single note without having to start all the way over. Especially when some taps aren't even synced with the lyrics or beat.