This game is so much fun. The levels can be challenging and It has a lot of game mode and game levels. It helps you concentrate better and have better eye hand coordination. The only bad thing I would have to say about the game is that there is the occasional ad that pops up, but unlike most free games, these apps do not show up every time so thats good. Again, this app is really good and its a really fun game to play. It can be a tad addicting though. I definitely recommend this game. :)