If your eyes follow the movement of the rotating pink dot, you will only see one color, pink. If you stare at the black + in the center, the moving dot turns to green. Now, concentrate on the black + in the center of the picture. After a short period of time, all the pink dots will slowly disappear, and you will only see a green dot rotating. It's amazing how our brain works. There really is no green dot, and the pink ones really don't disappear. Ref : http://funnyswf.googlepages.com/the-great-illusion-of-pink-circle.htm
Yah, I've seen that before, but it always amazes me every time I see it!!! I got one blind eye and it still works.
Thanks everybody for the appreciation. Nintendo, I have a very similar case like you it always amaze me