The game really is good. It's original (as far as I know) and the mechanics work really well. At first you get annoyed as going in the rythm isn't as easy as it might seem. However after a while you learn it and it brings satisfaction. I have played not for very long (doesn't mean it's boring, I'm sure I will play alot more time) but already I can see it's pretty good. The progression also is nice. However, the game is harder than I thought - fortunately the level design is quasi random so it's not boring. I give it five stars cause it's hard to point any problem with it. It's not an AAA title obviously, but as a smaller game to play for fun it really does deliver. Plus the music is quite nice.