LabPixies make some great games and have recently been acquired by Google! I first saw this game on my wife's iPhone and thought it looked lame but after playing it for a few minutes I just could not put it down! Such a simple concept with a clean UI and yet entertaining! Normally, games like this bother me for TWO main reasons.... First is that they require surgical precision to play the game and second is because I am partially color blind and I have a very hard time telling the different colors apart. This is the screen you see when you open up the game. The circles at the bottom are the controls for the game! Much easier than trying to hit a tiny square on the screen! If you click the button that looks like a gear (towards the top right side of the game board) you get to the settings. This is great because you can change not only the SIZE/difficulty of the game but you can also change the color of the blocks! This is a huge help for those who are partially colorblind or full colorblind. This is what the largest board size looks like (notice that you get 36 "clicks" with this board)! This is the smallest board (only having 22 moves). As the game goes on the screen changes colors. If I were to touch the 2nd grey circle, all of those colored squares that are TOUCHING the yellow would disappear. When you are out of moves or want to start a new level just hit the star. Game play is simple: The top left square is your starting piece. You want to pick a color that touches the starting piece(s) color and press the circle. The screen will change and you keep playing until the screen is one color.