Are you ready to challenge yourself with the simplest game ever? Watch two flows of the squares on the left and the right from the line. Make sure that you will match colors by tapping on the screen and switching squares with each other.
Test your attentiveness playing this magnificent game. Look at the screen and tap to switch two squares in the center with each other to match the color of the incoming squares. Don't think for too long, or the game will be over for you. There are two difficulties, so if you want to challenge yourself - switch the difficulty to hard and play.