Don't Step the Tile - speed grid game

The aim is to tap the black tiles and avoid tapping on any of the white tiles. Several tiles will randomly change from white to black, and each black tile will have a countdown. You need to tap each black tile within its countdown and avoid tapping any white ones. Sometimes, a large number will appear on a black tile, meaning it will need to be tapped a certain number of times. Its very easy to accidentally tap the tile an extra time and lose! This game is a true test of reflexes and concentration.