its a really fun game, and I don't have to deal w/ ads because I installed an ad blocker onto my phone, but i REALLY wish that you could disable the flashing light background. strobe lights give me extreme anxiety, and it makes me less likely to use the app, which is sad because i otherwise enjoy it. other problems that don't really matter (that I'm going to list anyhow) are that you can't listen to music with the app open, the game isn't full screen, and the music icon doesn't show when the music is muted or not- these are just minor problems though.