Honestly, it's the ads that kill this one. You'll probably have to fiddle with the music timing a little, but it's an option available in the settings which is awesome that it has so readily. Good selection of songs, although you only get like half the song, which for some songs is a blessing to a degree. Overall, good, but I just couldn't do the ads, sorry.

Pros: Good way to pass the time, and the many variety of songs is good. The gameplay is really satisfying because the reticle automatically destroys the notes and it's very responsive. There are different difficulties and even an endless mode for much replayability. Getting in-game coins isn't that bad and getting a new weapon keeps bringing me back to playing. Some have unique traits to them such as a wider detection range which is pretty handy. Cons: No offline play, lots of ads, uses up power

This game is fantastic, however my gripe is that Coin Time is WAY too frequent. It should only happen when a player levels up, and that the importing music is broken, none of my songs are less than 30 seconds, and yet, it acts as if some of them are. Also, the importing music should cost coins instead of ads, and the imported songs should also have an endless mode too.