This game is based on the concept of a "continuous memory task." It will allow you to practice your learning and memory for visual stimuli and attention to detail. You can think of this as your memory for the flow of events in terms what you see.
For each image that is displayed, you must determine if you have seen the image previously during the game. If you have seen the image at any time during the current game, tap "Yes." If the image is a new image, tap "No." You will gain a point for correct answers and lose a point for incorrect answers. Your performance speed will also affect your score. You have two minutes to play, so you want to try to get as many points as you can in that time.
Do not be discouraged if immediate improvement in scores is not noticed. Many games take a significant amount of time and practice to see score improvement.