I work with this game and the Brain Age game and find that regular work with both of these games improves my memory. In this game's memory exercises, the game flashes numbers on the screen for a second or two and then you have to type in the number. They start out with two digits and go up to 6 digits. An interesting feature is that the game scales the difficulty, increasing the number of digits it flashes as you get them correct and scaling back the number of digits when you make a mistake. This scaling feature carries through all the different exercises. It is a well designed thought out game that appeals to a wide age range--4-100.