A blue orb will move across the screen. In the upper right-hand corner, a red dot will flash. Afterwords, you will click somewhere, and a blue dot will appear (but on y: 0) and the actual location of the dot on during the flash will be reveled by a red dot. Try to get them really close together. Hit the space bar or the green flag to restart the game. Seem easy? It's really not!
Thanks to the TV show Brain Games for the idea. This program uses psychology I learned from it.