Quite good but... You should put some options in it like turning vibration on and off. Put there also some modes where you wouldn't be able to control when to put of the white screen, or some time challenge where you would have only certain time to achieve something and so on.
Really good and addictive for time killing
It is good for the memory I've reached the level 21 any one beat me?
Its great game for all age
Very addictive do you have the skills of a chimp
Visual memory Its really super