My monitor is not good enough for this shit, it's like playing FPS with darn gamepad. First time lvl 17, second attempt lvl 22, third time lvl 26. Will try couple times more to see if I'll keep improving. Bright colours are my bane and green and especially blue are killing me.
This game is what Kafein's nightmares consist of.
Edit: Meh you can cheat. Dude who made this forgot to put penalty on clicks, if you have fast fingers you don't have to guess the colour. But I'm trying with other senses to play this, because my eyes and monitor are not up to the task. If I don't see difference in warmth right away, no way I'll find later.