Simple but fun concept. Tap colorful balls to cycle their color, try to get them all to match the center color. Successful matches give you extra time and slowly increase the difficulty, until you're frantically poking balls all over the screen, trying the avoid exploding back balls, sometimes getting the colors inverted/time slowed down, and other surprises. While the game will run on windows, it is clear that it was originally intended to be a cell phone game, as the screen is just a small rectangle. Additionally, while it is possible to play with a mouse, you won't get very far moving the mouse to click the balls. I have one of those computers with built in touchscreen capabilities, so it was much easier to have my fingers hovering over the game window ready to poke balls in quick succession in different corners of the screen rather than chasing them around with the mouse. So if you have the option, choose to play it on your phone. Second best is touchscreen on a computer.