I like the puzzle/challenge aspect of this game. But there are only really maybe 8-10 challenges that recycle over and over. The game is glitchy, there is no pause or quit function, and the game freezes all the time (either the balls get stuck, or there’s no reason whatsoever) and your only options are to either let the clock run out, or force quit the app. It wasn’t as bad when I played last night, but today every single match I’ve played has had some kind of freeze and I had to run the clock out and restart the app, which didn’t fix anything. I will edit my review if the developers update/fix the app, which I hope they do because I actually enjoy playing the little brain teasers.