Help the smiley! Colour blots are threatening it.
Fortunately you can help. Make the background the same colour as the blot and it will disappear.
 But hurry up. If the blots reach the smiley, it will be too late.
If the smiley is totally yellow, there is no escape!

At the beginning you can get used to working. One tap produces red. A tap with two fingers produces a portion of green and a tap with three fingers blue. A tap with three fingers has to be trained.
By the way you can learn how all colours are mixed with red, green and blue.


With a swipe you make the background black. By tapping on a level point you can play in the level you have already reached again.


Dead easy, but in higher levels you have to be very fast and recognize the correct colour mix.