Use your thinking ability (and your eyes) to recognize the odd one out in the grid - this is ColorBlinder.
There is a grid full of squares, but one of them is a little bit different colored compared to the others. You need to find it and tap it. But you need to hurry because of your time finite. If you choose the correct tile, you'll get extra time, but if you choose one of the wrong ones - well, then your time will decrease immediately.
So choose wisely, be fast, but first, don't forget to download the game!
Does anyone ever even read these long descriptions?