This is a really simple game. You know that is a loaded statement. Just because a game is simple doesn’t mean it can’t be maddeningly difficult to win, or finish. I’m not sure this game even has a finishing, or winning, point. All you do is click the tile that is a different color. But the further you go, the less contrast there is in the tiles. Eventually you will be seeing waves of color and changing tiles, although that’s in your head. How far will you go? I made it to level 23 once, although I stumbled at 18 the first time around. -via Metafilter
wtf is 48? whoa!!
btw, greens should be easiest, cause human eye can see most of the green color's tones than other colors. This is an evolutionary fact, which we had gained a better sense on green around jungle etc. from thousands of years ago. that is why night vision glasses are always shows in green :)