This game enhances vision span, meaning the ability to absorb information to the left and right of your facial centerline, also called the horizontal parafoveal region. The numbers are displayed only for a short period of time, conditioning you to minimize periods of fixation. It is a requirement for effective and fast reading.
You will see a number of 3 or more digits for very short period of time. Memorize it.
Enter the number you memorized.
Succeed and get to a harder level!