Let me introduce you to a group of nice, happy blue tiles. Unfortunately, the tiles are very fragile and often get sick. An infected tile turns green for a while, then red. Tap on it to cure it before it's too late! At the same time, be careful not to tap the blue tiles, as it will harm them!
So simple, but fun and addicting!
Each cured tile gives you one point. Get as many points as possible and compete in the leaderboards with your friends and players from all over the world! If you like challenges, check also the 5x5 and 7x7 modes. Can you make it? ;)