This game is great but a lot of bugs, maybe intentional, need to be worked out. Especially screen sensitivity and response. The screen at times doesn't detect pressing on the keys, also the screen doesn't respond to swipes (arrows) very well at all. So you can have a perfect streak but lose because the screen didn't detect a swipe. Also, it is a bit costly. You really can't progress in this game well without gems bc of aforementioned